12 best lenses

Lenses are optical devices that have curved surfaces designed to bend and focus light. They are fundamental components in the field of optics and have numerous applications in science, engineering, and everyday life.There are two primary types of lenses: convex (or converging) lenses and concave (or diverging) lenses, each with unique optical properties and applications.

Here's some key information about lenses:

  1. Convex Lenses:

    • Shape: Convex lenses are thicker at the center than at the edges. They have a bulging or outward-curved shape.
    • Focusing Light: Convex lenses converge or focus incoming parallel rays of light to a single point known as the focal point. This property makes them useful for magnifying objects and forming real, inverted images.
    • Focal Length: The distance between the lens and its focal point is called the focal length. Convex lenses have positive focal lengths.
  2. Concave Lenses:

    • Shape: Concave lenses are thinner at the center and thicker at the edges. They have a recessed or inward-curved shape.
    • Diverging Light: Concave lenses diverge or spread out incoming parallel rays of light. They do not converge to a real focal point; instead, they appear to diverge from a virtual focal point.
    • Focal Length: The distance between the lens and the virtual focal point is considered the focal length for concave lenses, and it is typically negative.
  3. Principal Axis: The line passing through the center of the lens perpendicular to its surface is called the principal axis.

  4. Optical Center: The optical center of a lens is the point on the principal axis through which light passes without undergoing any deviation. It is typically close to the geometric center of the lens.

  5. Focal Point and Focal Plane: For convex lenses, the focal point is on the opposite side of the incoming light, while for concave lenses, it is on the same side as the incoming light. The collection of all focal points (real or virtual) forms a focal plane.

  6. Applications:

    • Magnifying Glasses: Convex lenses are used in magnifying glasses to enlarge and bring objects closer for better viewing.
    • Camera Lenses: Camera lenses use various types of lenses to focus light onto the image sensor or film, allowing for the capture of photographs and videos.
    • Eyeglasses: Lenses in eyeglasses correct vision problems by adjusting the way light enters the eye.
    • Telescopes and Microscopes: High-quality lenses are essential components in optical instruments like telescopes and microscopes, enabling detailed observation of distant objects or small-scale specimens.
  7. Lens Aberrations: Lenses may suffer from optical aberrations, such as chromatic aberration (color fringing) and spherical aberration (blurring), which can impact image quality. Optical designers work to minimize these aberrations in lens designs.

  8. Lens Materials: Lenses can be made from various materials, including glass, plastic, and specialized optical materials, each with its own optical properties and advantages.

Lenses are a fundamental tool in optics and play a crucial role in a wide range of applications, from vision correction and photography to scientific research and industrial processes. Understanding the properties and behaviors of lenses is essential for anyone working in the fields of optics, science education, or industrial scientific applications.

Below you can find our editor's choice of the best lenses on the market
  

Canon EF 75-300mm f/4-5.6 III Telephoto Zoom Lens

Canon

Based on 502 reviews Check latest price

Product description

The Canon EF 75-300mm f/4-5.6 III is a 4x zoom characterized by its relatively lightweight design and compact form factor. Well-suited for a variety of subjects, including portraiture and sports, this lens portrait to medium telephoto fields of view and utilizes a DC micro motor to provide fast and accurate autofocus performance. Benefitting image quality, a Super Spectra coating has been applied to individual elements to reduce lens flare and ghosting in order to achieve high contrast and accurate colors. Additionally, it features a seven-blade diaphragm to produce smooth and pleasing bokeh.

  • Focal Length & Maximum Aperture : 75-300mm 1:4-5.6
  • Lens Construction : 13 elements in 9 groups
  • Diagonal Angle of View : 32° 11' - 8° 15'
  • Focus Adjustment : Front group rotating extension system with Micromotor
  • Closest Focusing Distance : 1.5m/ 4.9 ft.

User questions & answers

Question: What is the filter size for this lens
Answer: 58mm
Question: Can I use this lens with my cannon T7i
Answer: I am not an expert on lens compatibility. But I do believe this lens will perform just fine on any Canon auto focus camera.
Question: Will this work on canon eos rebel xti
Answer: It will; your camera can use all EF and EF-S lenses. However, I think you will be better off avoiding this lens and going for the EF-S 55-250mm F4-5.6 IS STM instead. It is a little more expensive (about 200 bucks), but is a FAR better lens. The only thing the 75-300mm has over it is the 50mm of extra reach. The 55-250mm has IS, better image quality, faster and smoother focus, sharper at all zoom ranges, and a few other minor advantages like rear element focusing (front of lens doesn't rotate). Best of all, it will fit your camera! And while the 75-300mm is considered the worst lens in the Canon lineup, the 55-250mm is considered the best telephoto for under a grand. If the IS STM is a little too expensive, then the older model, the IS II is still a decent lens as well, for a little more than the 75-300mm. If you want some more info, I have a review for that lens on my profile. Hope that helped!
Question: Have a rebel t6 dslr wanting similar lens any ideas or does this one fit my camera
Answer: It will; your camera can use all EF and EF-S lenses. However, I think you will be better off avoiding this lens and going for the EF-S 55-250mm F4-5.6 IS STM instead. It is a little more expensive (about 200 bucks), but is a FAR better lens. The only thing the 75-300mm has over it is the 50mm of extra reach. The 55-250mm has IS, better image quality, faster and smoother focus, sharper at all zoom ranges, and a few other minor advantages like rear element focusing (front of lens doesn't rotate). Best of all, it will fit your camera! And while the 75-300mm is considered the worst lens in the Canon lineup, the 55-250mm is considered the best telephoto for under a grand. If the IS STM is a little too expensive, then the older model, the IS II is still a decent lens as well, for a little more than the 75-300mm. If you want some more info, I have a review for that lens on my profile. Hope that helped!

Xenvo Pro Lens Kit for iPhone, Samsung, Pixel, Macro and Wide Angle Lens with LED Light and Travel Case

Based on 10 reviews Check latest price
  • ✔ COMPATIBLE WITH ALL SINGLE AND DUAL-CAMERA PHONES including ALL iPhone models, Samsung Galaxy and Note, Google Pixel, Huawei and more. CONTENTS INCLUDE: TruView 0.45x Wide Angle Lens, Clarus 15x Macro Lens, TruGrip Lens Clip, GlowClip Mini Rechargeable LED Light + Charging Cable, Quick-Release Lanyard, DuraCase, EasyClip, Cleaning Cloth and LIFETIME WARRANTY.
  • ✔ TRUVIEW 0.45x WIDE ANGLE LENS - CAPTURE 45% MORE PICTURE WITH EVERY SNAP: Shoot stunning photos of people, pets, travel scenery, landscapes, architecture, selfies and more. NO DARK CORNERS (vignetting) like cheaper lenses. Crafted from aircraft-grade aluminum and premium optical glass for durability and clarity. Multi-element, coated glass lenses minimize ghosting, reflections, lens flare, and other artifacts. Xenvo cell phone lens attachment is ideal for hobbyists and photography pros alike.
  • ✔ CLARUS 15x MACRO LENS - MARVEL YOUR SENSES. MAGNIFY NEARBY SUBJECTS FOR BREATHTAKING, SUPER CLOSE-UP PHOTOS: Capture all the intricacies and details with precision-focus for razor crisp macro photos every time. (For best results, position macro lens approximately 1/2 inch from subject. Not designed for zooming in on distant subjects.) THE TRUGRIP LENS CLIP offers SUPERIOR GRIPPING POWER to fasten your lenses to your cell phone when you're in action mode, framing your next perfect shot.
  • ✔ GLOWCLIP RECHARGEABLE LED FILL LIGHT - The GlowClip LED light clips ANYWHERE on your phone to instantly illuminate your subject and surroundings with warm continuous light. The warm and natural LED light is superior to your smartphone's built in flash—which can be blinding and unnatural—especially in darker settings and venues. FEATURES 3 BRIGHTNESS SETTINGS: Low, Medium and High. Say goodbye to frustrating photo "retakes" and hello to brilliant photos the first time.
  • ✔ QUICK-RELEASE LANYARD AND TRAVEL CASE - TRANSPORT AND PROTECT YOUR LENS KIT: Perfect for taking your Xenvo lenses with you on the fly. The travel case stores and protects all lens kit components snugly and safely while the quick-release lanyard is the perfect way to carry your lenses on your next outing. Just drape the lanyard and lens around your neck. The quick-release lanyard head makes it a cinch to access your Xenvo lenses in a flash so you never miss another photo moment.

User questions & answers

Question: Can you use the lens for selfies
Answer: Yes. The eyepiece rotates outward, and it does have lens covers.
Question: Is this compatible with the iPad Pro
Answer: Hi there, as you said, in addition to the difference in size and zoom dimensions, since the 10-30x40 Zoom Monocular is an upgraded version of the 8-24x30 one, there are stricter controls on quality issues, thus making it more durable and of better quality than the old one. Hope our monocular telescope will do some good for you!
Question: Will i need to remove my Otterbox case on my iPhone 6 for this to work better
Answer: I was disappointed in this product and returned it. I don’t know if it’s because I wear glasses or what but I could not focus with it.
Question: I see the "strength" of the wide angle is 0.45x. I've seen other wide angles that are 0.65x. Does anyone know which size gives a wider angle
Answer: No, it starts at 10 and can increase to 30. Very nice monocular. You can look at things across a room though.

Product features

Need a high-quality wide-angle lens for real estate, landscape, group photos, and more? Consider this before you buy...

Comparing the photos above quickly reveals the difference between Xenvo premium quality lenses and cheap, low-quality alternatives.



Problems with cheap wide-angle lenses:



1. Barrel Distortion - Cheap wide-angle lenses will distort your photos, giving a warped, fisheye appearance; straight lines appear curved.

2. Vignetting - Poor quality construction and design of cheap wide-angle lenses results in unwanted darkening of corners in photos.



Benefits of Xenvo TruView wide-angle lens:



1. Rectilinear Correction - Xenvo wide-angle lenses feature additional glass elements that correct unwanted lens distortion so straight lines appear straight.

2. No Vignetting - High-quality, German optical-grade glass provides crystal clear images from edge to edge with no dark corners.

Tokina ATXAF120DXC 11-20mm f/2.8 Pro DX Lens for Canon EF,Black

Tokina

Based on 147 reviews Check latest price

Product description

A versatile wide-angle zoom for Canon APS-C-format DSLRs, the AT-X 11-20mm f/2.8 PRO DX Lens from Tokina offers a 17.5-32mm equivalent focal length and features a constant f/2.8 maximum aperture for maintained brightness throughout the zoom range. One P-MO hybrid aspherical element and two glass-molded aspherical element work in tandem to minimize distortions and control various aberrations while three SD ultra-low dispersion elements reduce chromatic aberrations for increased clarity. A multi-layer lens coating has also been applied to further enhance overall light transmission and color accuracy by suppressing lens flare and ghosting. Well-suited to working in a wide variety of situations, this ultra-wide zoom covers an array of wide-angle perspectives while maintaining consistent illumination for working in challenging lighting. Benefitting the usability, a one-touch focusing clutch permits quick switching between autofocus and manual focus modes, and an internal focusing design maintains the overall length of the lens during use. The medium-torque focusing ring further benefits precise handling by allowing for refined control when manually focusing. Additionally, this lens sees the incorporation of a nine-blade diaphragm, which contributes to a pleasing out-of-focus quality when employing shallow depth of field shooting techniques. Compatible with Canon APS-C-format DSLRs, this wide-angle zoom provides a 17.5-32mm equivalent focal length and features a constant f/2.8 maximum aperture for consistent low-light performance throughout the zoom range

  • EF-Mount Lens/APS-C Format. 17.5-32mm (35mm Equivalent)
  • Aperture Range: f/2.8 to f/22. P-MO & Glass-Molded Aspherical Elements
  • Three SD Ultra-Low Dispersion Elements. Multi-Layer Lens Coatings
  • Internal Focus; One-Touch Focus Clutch
  • Nine-Blade Diaphragm

User questions & answers

Question: Does it work with Nikon d
Answer: NO This is a Canon mount lens
Question: Will this work for the sony a
Answer: No, they do not make this lens in the Sony E mount
Question: compatible with a Canon Rebel sl
Answer: Yes.
Question: Does this work with canon rebel t5 camera
Answer: Yes. This lens will work on cropped or full frame camera beautifully. It's an amazing lens.

Sigma 50mm f/1.4 EX DG HSM Lens for Canon Digital SLR Cameras

Sigma

Based on 575 reviews Check latest price

Product description

The Sigma 50mm f/1.4 EX DG HSM Autofocus Prime Lens for Canon Cameras is a high quality, professional camera lens and youll know it the minute you pick it up. In the past few years, camera manufacturers have overlooked the need for a reasonable fast prime lens that is compact enough for everyday use, yet provides the necessary image quality to meet the highest expectations. Now, with the advent of the APS-c cameras, the long popular 50mm focal length takes on double duty as a portrait length lens of approximately 90mm on most of the small chip cameras. At a fraction of the size, weight and cost of comparable lenses, this is a lens you might want on your digital SLR camera at all times.Browse our Sigma Store online to compare all Sigma Lenses.

  • Large Aperature, standard prime lens, has superior peripheral brightness and corrects the sagittal coma fare
  • Standard lens with large maximum aperture of F1.4.
  • Creates sharp images with high contrast and ensures superior peripheral brightness
  • Incorporates molded glass aspherical lens, perfectly correcting coma aberration and creating superior image quality.
  • Super multi-layer lens coating reduces flare and ghosting.

User questions & answers

Question: i plan to purchase this lens but one thing worries me, what can i do if i get a lens that front/back focus
Answer: Hi, thanks for your question.Many sellers on Amazon.com offer returns for most items within 30 days of receipt of shipment. So if you receive a lens you can't use, you could return it to the seller.To read about a particular seller's Return Policies, go to the product listing and click on "Return Policy" underneath the seller's name.I hope this helps!
Question: Is this lens compatible with a Rebel t3i
Answer: On my answer page, a Nikon Mount Lens is shown. It is not compatible with Canon at all, period. But if you buy a Canon Mount, yes, the t3i will accept all EF and EF-S lenses. It is a crop frame sensor, and uses the sweet spots on EF Lenses, and Canon mount Sigma Lenses. Sigma DG mount is for full or crop frame, DC is for crop frame only. You must be weary of the bad reviews, it's the same glass. I have no problems whatsoever with Sigma lenses, I own 5. IMHO these people are pixel peepers who send their lenses back for recalibration, and get on every lens review site to spread their venom. I'm using mine on a Rebel XS Body and an EOS 7D body and a Canon Film Camera, all with perfect focus. I use the center spot focus alone. Cameras cannot focus on different depths at same time. I almost didn't buy Sigma, but I cannot substantiate all the bad reviews, Sigma works out perfectly for me. Sure cheaper than Canon "L" Glass.
Question: How does this compare to a Canon 50mm 1.8 ? Was thinking to upgrade but not sure if i should get another 50mm if its not much difference
Answer: No comparison! This lens even out performs Canon's 1.4 in most areas! One area it really blows a lot 50mm out of the water in is bokeh quality! It has 9 round blades that make a heck of difference and give it it's quality D.O.F. and bokeh. Some have compared it's build quality and performance more closer to Canon's 50mm 1.2L. I'm a fashion and beauty photographer and use this lens quite often, and I can confidently stand behind this glass! If you can buy it, buy it! To see some of the photos I've taken with this lens visit my site: www.richardanthonyevans.com.
Question: As the description does not say, does this lens come with a hood? caps? bag?...Thanks for any help
Answer: The Sigma 50mm f/1,4, as sent from the factory, comes with both caps, a generous hood and a sturdy cubic, or virtually cubic, lens case. IMHO, this lens is excellent value for the money and performs exceptionally well. I own one of these lenses and would recommend this lens to a close friend. Good shooting!

Product features

50mm F1.4 EX DG HSM

Sigma''s 50mm F1.4 EX DG HSM is high quality, professional optics and you’ll know it the minute you pick it up. In the past few years, camera manufacturers have overlooked the need for a reasonable fast prime lens that is compact enough for everyday use, yet provides the necessary image quality to meet the highest expectations. Now, with the advent of the APS-C cameras, the long popular 50mm focal length takes on double duty as a portrait length lens of approximately 75mm on most of the small chip cameras.

Dimensions (Diameter x Length): 84.5 x 68.2 mm/3.3 x 2.7 in

Weight: 505g / 17.8oz.

About Sigma

Since 1961, and with the recent introduction of Sigma Global Vision, we have worked toward one single, simple goal: To hold ourselves to the highest standard of design & manufacturing of imaging products. Photography is all we do. And it’s all we’ve done. So you can rest assured that it’s something we know extensively and care deeply about. You have a vision. We’ve made it our mission.

Canon EF 75-300mm f/4-5.6 III Telephoto Zoom Lens for Canon SLR Cameras

Canon

Based on 2 reviews Check latest price

Product description

The optical system, construction, and exterior are the same as the EF 75-300 mm f/4-5.6 III USM’s. The difference is that it uses a DC motor instead of a USM to drive the AF.Format Compatibility: 35mm Film / Full-Frame Digital Sensor,Canon (APS-C).

From the Manufacturer

Capture the far-off action of fast-paced sports or zoom in for an intimate portrait with the Canon EF 75-300mm telephoto zoom lens. The optical system, construction, and exterior are the same as the EF 75-300 mm f/4-5.6 III USM’s. The difference is that it uses a DC motor instead of a USM to drive the AF. As with all Canon lens, this 75-300 model carries a one-year warranty.

  • Focal length: 75-300mm
  • Maximum aperture: 1:4-5.6
  • Lens construction: 13 elements in 9 groups
  • Diagonal angle of view: 32 (at 11 feet) to 8 degrees (at 15 feet)
  • Closest focusing distance: 4.9 feet
  • Zoom system: Rotating type
  • Filter size: 58mm
  • Dimensions: 2.8 inches in diameter, 4.8 inches long
  • Weight: 16.8 ounces
The most affordable of Canonís long telephoto zooms, this lens is excellent for subjects from portraits to wildlife and nature. It shares the same 13-element optical system as the 75-300mm USM lens, but uses a DC motor for autofocus. Close-focusing down to 4.9 feet (1.5m) allows filling the frame (at 300mm) with a subject the size of a dollar bill, and itís compatible with the Canon 58mm Close-up lens 500D for even more spectacular shots of small objects.

Isolate the Interesting Part

The eye tends to see the whole rather than the individual parts. It also sees whatís near and not whatís far. By bringing attention to those things missed by the eye, you can create many interesting pictures. It could be the grimace of an athlete, the grill of a classic car, or a girl against a blurred background. Telephoto lenses can also compress images to give dramatic effects. You are limited only by your imagination.

User questions & answers

Question: Is this lens compatible with the Canon 1100D/T3i
Answer: Hi,It includes:NB-11LH Lithium-Ion Battery PackCB-2LF Battery ChargerLens CapWS-DC12 Wrist StrapLimited 1-Year WarrantyWe also have a bundle that includes all these accessories plus many more for a great price https://www.amazon.com/dp/B01D0PKF0Q
Question: Is "Bulk Packaging" means brand new lens
Answer: A date stamp on picture yes but not a date stamp on the file itself. I'm running Window 10 and need to use Corel PaintShop Pro to add date, etc. to the JPG file.
Question: Will this fit an sx
Answer: no
Question: will this fit the EOS Rebel XSi
Answer: Nothing designated mic jack, although it does have digital audio/video out
Question: Does this camera come with any accessories
Answer: No. It probably couldn't get off the ground. If it did, it would be difficult to control at best.
Question: Does it have a date stamp
Answer: I would say yes they are foam.
Question: Do you have to have apple phone or tablet to use the wifi
Answer: The average operating time is about 10-15 minutes. My son, who is 31(!), loves this! This was one of his Christmas presents and the favourite one! The battery charge time is not that long, if I remember correctly. I'm not sure of the actual time, but I don't remember it being very long. Hope this helps! Wonderful customer service; answered all of my questions and my son absolutely love it!!
Question: Does the camera have a mic jack
Answer: Yes but, I would not really recommend inside use the car is large and has quite the learning curve to fly. Will easily crash inside unless you have a huge room

Product features

Canon EF 75-300mm f/4-5.6 III Telephoto Zoom Lens

This high-magnification zoom lens is the smallest and lightest in its>cost-performance. A lightweight glass material was used for the first element group – the heaviest group in the optical system – to reduce operational load during autofocus operation. Combined with the micro USM, the autofocus is quick and quiet. The slim exterior and smooth zooming makes this lens a delight to use.

  • Filter size: 58mm
  • Maximum aperture: f/4 - 5.6
  • With micro USM motor

6pc Optical Lens Set, 2" - 200mm, 300mm, 500mm Focal Lengths - 3 Double Convex & 3 Double Concave, 2" (50mm) Diameter Lenses - Optically True Glass - Ground, Beveled Edges - Eisco Labs

12 months - 10 years

Based on 108 reviews Check latest price
  • SPHERICAL || Each lens is spherical in shape and measures 2" (50mm) in diameter
  • FOCAL LENGTH VARIETY || Converging and diverging focal lengths in 200mm, 300mm and 500mm
  • OPTICALLY WORKED GLASS || Made of high quality, optically worked glass. Highly polished with ground edges
  • GREAT FOR PHYSICS CLASSROOMS || This optically true lens set is excellent for physics classroom demonstrations in optics and light refraction

User questions & answers

Question: Could these be used to start a fire for camping/emergency use
Answer: Yes, 3 of them can be usted por that because they focus the light, the other 3 are divergent, so they can not.
Question: Would these work to make a simple refracting telescope
Answer: In theory yes, but please be careful in reviewing focal length ratios to ensure that the tube length is reasonable.
Question: are they labeled, like which one is concave and which one is convex
Answer: They are not labeled, but the convex lenses are thicker in the center, with thinner edges. The concave lenses have thinner centers and thicker edges.
Question: If a person places 2 of these lenses a few inches away from each other in a tube, will it work like a monoscope
Answer: A monoscope was a kind of tv pattern generator used to tune a tv system 30 years ago, so they don't. If you mean a telescope, you could place two of this lenses in a tube about 28 inch apart, with a magnification of about 2.5, so it just work as a demo, not a practical telescope.

Product features

Set of 6 Optical Lenses, 2" Each

High quality set optically true lenses. Made of highly polished, quality glass. Spherical with ground edges.

Each lens measures 2" (50mm) in diameter.

Useful for many physics classroom demonstrations and experiments.

Great for a variety of optical bench & ray box experiments, exploring the refraction of light, and for comparing converging and diverging image formations.

Canon EF 100-400mm f/4.5-5.6L IS II USM Lens, Lens Only

Canon

Based on 329 reviews Check latest price

Product description

Compact, high performance L-series super-telephoto zoom makes it ideal for sports and wildlife photography Rotation-type zoom ring allows for more precise composition and excellent balance when handholding Improved zoom torque adjustment ring allows easy setting of zoom tension New Air Sphere Coating (ASC) helps to significantly reduce backlit flaring and ghosting Highly resistant to dust and water, and amazing durability enabling shooting even in harsh conditions

From the Manufacturer

  • Compact, high performance L-series super-telephoto zoom makes it ideal for sports and wildlife photography
  • Rotation-type zoom ring allows for more precise composition and excellent balance when handholding
  • Improved zoom torque adjustment ring allows easy setting of zoom tension, Focal Length & Maximum Aperture:100-400mm 1:4.5-5.6, Closest Focusing Distance-3.2 ft. / 0.98m
  • New Air Sphere Coating (ASC) helps to significantly reduce backlit flaring and ghosting, Highly resistant to dust and water, and amazing durability enabling shooting even in harsh conditions

User questions & answers

Question: Does it auto-focus with the Canon TC x2.0? And for the TC x1.4, does it only work with center focus
Answer: No, you will need to manually focus with the 2x TC since you will be at f/11 with this lens/TC combination.The new 100-400mm II handles the 1.4x TC nicely with my 7D mkII and 5D mkIII, but since you are at ~f/8 you can only use the center focus point.
Question: I have a 70-200 2.8 and am thinking about this one for high school baseball , football and soccer to get more close ups. Anyone use this for sports
Answer: 100-400 is too slow for indoor shots. Recently, I shot photos at my kid's soccer game. Even using a 70-200 2.8 I had to increase the ISO to 6400 to have fast-enough shutter speeds to capture the movements. I got many good but very grainy images. For actions, 2.8 is the only way to go.
Question: I like shooting action and I have a 70-200. Will buying this 100-400 be legitimate
Answer: That depends on the sport, your distance from the action and aperture you want. I shoot a lot of action too, softball, baseball, gymnastics, rowing, etc. for me, my 70-200 lives on my camera. However; if I want different perspectives, like a picture from center field to the batter - I will switch over to the 100-400. I also need it for the reach at most rowing events. That said, I still prefer the 70-200 for the speed and sharpness. Perhaps I’m just more comfortable with that lens.
Question: Whats the difference between this and the older version? Just basic key points
Answer: Among the changes from the Mark I version are* The zoom mechanism now uses a rotating ring (like most other Canon zoom lenses), instead of a push/pull system.* The Mark II version also features a new lens hood with a side window, making it possible to adjust specialty filters (such as polarizers and variable neutral-density filters) without removing the hood.* The tripod mount can now be removed while the lens is attached to a camera body. The Mark I tripod mount can only be removed when the lens is detached.* The IS system has three modes instead of the two modes of the Mark I. The third mode (which Canon calls "Mode 3"), designed with action shooting in mind, is similar to the mode used for panning ("Mode 2"), except that stabilization is applied only during exposure. * The lens is slightly taller, wider and heavier than the original.* The EF 100-400mm f/4.5-5.6L IS II USM uses a totally new optical formula with one Fluorite and one Super UD element.

Canon EF-S 10-18mm f/4.5-5.6 IS STM Lens

Canon

Based on 1 reviews Check latest price

Product description

The EF-S 10-18mm f 4.5-5.6 IS STM lens combines optical excellence with cutting-edge performance, providing an ultra-wide angle of view in a compact, portable package, perfect for EOS cameras with an APS-C sensor. It has a 4 group optical zoom system and includes a large-diameter element, an aspherical lens element, a UD lens element and enhanced lens coatings for high-contrast, high-resolution images with minimal glare and aberration. A circular, 7-blade aperture helps ensure fine background blur and the Canon Optical Image Stabilizer system provides up to four equivalent stops of shake correction. The lens has a stepping motor STM and a refined focus mechanism for smooth and continuous AF during video recording. It also has a rear focusing system, plus a high speed CPU and improved AF algorithm for high-speed AF and offers full-time manual focus for quick adjustments. The EF-S 10-18mm f 4.5-5.6 IS STM delivers reliable, speedy and quiet wide-angle performance, making it an ideal lens for everyday photography, travel, stills and video recording.

From the Manufacturer

  • EF S ultra wide zoom lens. Drive System Lead screw and rack system driven by stepping motor
  • Focal Length and Maximum Aperture: 10 18 millimeter,1:4.5 5.6
  • Closest Focusing Distance: 0.72 feet. / 0.22 meter
  • Stepping motor for noise free video shooting
  • Optical image stabilizer

User questions & answers

Question: Is this a plastic housing and lens? Or is it metal / glass
Answer: The lens elements are glass, and pretty good glass at that. The housing and even the mount are made from plastic. The mount is polycarbonate, a nearly indestructible plastic. The lens is so light I doubt it will ever make any difference; to break it you would have to do something that would also break your camera. If you would like to see a comparison between these two lenses, I have a review for the lens on my profile. It gives the pros and cons, offers advice for how to use the lens best, and also does the breakdown with the 10-22mm. Here is a link. https://www.amazon.com/gp/customer-reviews/R3PCTW2FIAWS7W?ref=pf_ov_at_pdctrvw_srp
Question: what is the equivalent in 35mm
Answer: This lens has a comparable focal length of 16 - 28.8mm in a 35mm equivalent. If you have any further questions or concerns, please don't hesitate to contact our sales department at 800-991-3350 EST. We thank you for your time and consideration!
Question: Will this lens work on a Canon Rebel EOS t3i? Thank you
Answer: This is an older question but I feel this info is important so I am posting an answer anyway...Yes, your camera can use all EF and EF-S lenses. Keep in mind that this is what is known as an Ultra-Wide angle lens (UWA). If you are not familiar with this type of lens, I suggest that you do some reading on the best ways to use one. Here are some general tips just in case…1. Distortion effect – UWA have a special way of bending light from a large element down to the sensor, which results in barrel distortion. The easiest way to describe this is that is has a funhouse mirror effect. Near objects will appear very large, far object will seem to shrink. If you understand how this works, you can use it to creative effect. Some of the negative reviews for the 10-18mm and the 10-22mm are from people that clearly did not understand this.2. Specific purpose – UWA lenses are made with a specific purpose in mind. They excel at taking in broad landscapes, buildings, large machinery, etc. They are not good at portraits or general photography. They are meant to compliment other lenses, not serve as a main lens (unless that stuff is all you shoot, which is not common). 3. Get up close – probably the worst thing you can do with a UWA is not get close enough to what you are shooting. I prefer to place something in the foreground whenever I can, something to take advantages of that barrel distortion, to give a sense of depth in the shot. If you don’t do this, then you end up with a picture where everything looks too small and really far away. It takes some practice to get good at composing with a UWA. For more info, I have a review of this lens that not only discusses its strengths and weaknesses; it also gives some reasons why it is almost always the best choice for a wide lens on APS-C cameras like yours. This includes a comparison to the 10-22mm that is also popular, but is also more than twice the price. You can find the review in my profile, if you are interested. The gist of it is that this is a really good lens for the money, and a lot fun to use if you understand its purpose. Have fun!
Question: This one or the efs
Answer: I know that this question was from a couple years ago, but since others see it on Amazon, and these two lenses are constantly compared to each other, I want to place an answer....1. Focus range - the 10-22mm has a slight advantage in length; 22mm versus 18mm. But you aren't buying an ultra-wide to zoom in on things; you are buying it to catch wide views. They both go out to 10mm, so in my opinion the range is mostly a wash, especially since they are both EF-S lenses, which means crop sensor only, which cuts down on your overall field of view. They both give a framing similar to a 16mm lens all the way wide, which is still pretty wide.2. Focus Motor - The 10-18mm is STM, the 10-22mm is USM. This comes down to how you intend to use it, and even what camera you own. If you want to use your lens for video capture, then the 10-18mm is the only way to go. This is because the STM motor is virtually silent in video mode, and offers a smoother focus for this type of photography. The 10-22mm USM is likely a faster focus, but because of the way it hunts for focus, it is not good for video capture, since every time you switch between subjects it will start to hunt for focus again, which is not attractive to the viewer of your video. It also is fairly noisy, and from what I hear that noise will be picked up by the mic. If you have a T3i or older, then STM is not supported in video mode, but all EOS cameras will support STM in still mode. If you are using for stills only, then the USM has an advantage if you are using the lens to capture action shots, as USM tends to be better at that, but STM is still pretty quick and also a good focusing method. I can't really see someone using an ultra-wide for action shots though, so this might also be a wash, unless you need the faster lens. (More on that in a second)3. Aperture - The 10-22mm has this category hands down. Both have variable apertures (meaning the more you zoom the less light gets to the sensor), but the 10-22mm goes from F3.5 to F4.5, while the 10-18mm starts at F4.5 and goes to F5.6. This means that with its USM motor, at F3.5 you will achieve faster shutter speeds than the 10-18mm. So as I was saying before, the 10-22mm is the faster of the two lenses, if that is what you need. As an added "advantage", it will also be better in low light (though still not great, more on that later). I think the real advantage here is if you are using it by hand, you will likely have fewer issues with handshake, but then, the 10-18mm has IS, and the 10-22mm doesn't.4. IS - So, let's talk about image stabilization. The 10-18mm has it and the 10-22mm doesn't, so the 10-18mm is the winner here, sort of. One common misconception about IS, is what it actually does. All it does is it counteracts shaky hands at slow shutter speeds. It does NOT affect your subject; that is dependent on your shutter speed. Once you are at 1/320 sec on anything but a long zoom (like the 55-250mm), then hand shake is less of an issue. If you are at 1/1000 sec then IS is useless to you. It might even be a disadvantage, since the motor takes a split second to activate, and can even give the appearance of shakiness since the shutter will catch the movement at that speed. If shooting action, you won't need IS. If shooting in low light, IS might not be enough to help you. And if you are using a tripod, you won't need IS. I use the 10-18mm, and I rarely use it off the tripod. So, this category is dependent on how you will use the lens. I can't recall using the IS on my 10-18mm even one time. I would bet it is useful for video capture (probably why it has it to begin with), so if that is your aim, then the 10-18mm is still the winner of this category. Another thing I want to point out here is that the IS can compensate 4 stops. So, theoretically, you can shoot at a slower speed and f-stop than the 10-22mm and still not get blur. Between these lenses, this is a very big advantage, since this is the more likely scenario you will use one of these lenses for. 5. Price - Without a doubt, the 10-18mm wins here, as it is half the price of the 10-22mm. And at less than 300 USD, it is also affordable by all but the most frugal of photographers. Is the 10-22mm worth the extra cash? Only if you need a slightly faster, zoomable, ultra-wide lens. There are faster prime lenses, but they are all EF lenses, and therefore much more expensive (the 14mm F2.8L is over 2K), and there aren't a lot of options at the ultra-wide when you factor in the 1.6x crop factor of APS-C cameras (many of them are 35mm, which is not very wide on crop sensors). The only zoomable ones that are faster are also EF mount, and have all the same issues. For APS-C, the 10-18mm and the 10-22mm are pretty much your only practical choices at the Ultra-wide range. Crops just aren't made for wide shots, but that being said, I've gotten some great shots with my T3i and 10-18mm, some of my favorites actually. With either of these lenses, you can get pretty wide on your Crop camera. 6. Sharpness - I don't have the 10-22mm to compare, so I can only say that the 10-18mm makes some pretty impressive images for an inexpensive lens. I've not had any issues getting what I want from it. I do try to use it in the situations it is best at, from a tripod, with the lowest ISO and shutter speed possible to give good exposure. If you go to the digital-picture website, they have a tool called "lens image quality", where they have a comparison between 2 different lenses. It's handy, and lets you compare across the zoom range, at different apertures, from different cameras. On these lenses, they are both pretty comparable at 10mm across the whole range of apertures. At 14mm and 18mm, the 10-22 is sharper at wide open (but still not very sharp), but at F8 and on they are pretty much the same at the center, and both get a little soft in the corners (common issue on wides). I feel they both will produce good quality pictures that are comparable to each other, with the 10-22mm being just a slight bit sharper at wide open across the whole zoom range. But since you will likely stop down for better sharpness and better depth of field, this is pretty much a wash. So, how does it all add up?In my opinion, the 10-18mm is the better choice for most people. The 10-22mm has advantages in specific situations, like low light and action shots, but then, in all those situations a crop sensor camera with a wide angle lens is not the best choice. Low light is done better with full frame cameras; action is better when you can zoom in more. And since neither of these lenses can mount on a full frame nor zoom in very far, then I feel it comes down to 2 things; sharpness and price. The 10-22mm has a slight edge in sharpness at its full aperture, but that is negligible. If you are using in good lighting, for landscapes or architecture, then you are shooting at a smaller apertures anyway, to increase sharpness. The 10-18mm is just as good in those applications. When you factor in that it cost half as much as the 10-22mm, then really, it is the better choice. If you are interested, I have a review of the 10-18mm in my profile that further discusses the pros and cons of the 10-18mm, and uses a lot of this same information to help people make a more informed decision over what lens to buy. And once again, if you plan to shoot video, the 10-18mm is the only real choice between these two, since the STM and IS are BIG advantages over the 10-22mm in video mode.

Lenses: Applying Lifespan Development Theories in Counseling

Based on 37 reviews Check latest price

Product features

BeUnstoppable with Lenses: Applying Lifespan Development Theories in Counseling

Lenses offers a current and practical review of human development perspectives and theories. The text presents a selection of human development models, theories, and perspectives, and demonstrates how a strong grasp of developmental principles can inform practical applications.

Canon EF-S 55-250mm F4-5.6 IS STM Lens for Canon SLR Cameras

Canon

Based on 1 reviews Check latest price

Product description

Fast and silent lens functions. Improved image stabilization. 55-250Mm focal length. Aperture: 1: 4-5.6. Warranty: one year. 6.7 in. L x 4.6 in. W x 4.3 in. H (1.2 lbs.).

From the Manufacturer

Untitled Document

  • High magnification, compact and lightweight EF-S telephoto zoom lens with Image Stabilization for up to 3.5 equivalent stops of shake correction. Based on CIPA (Camera & Imaging Products Association) standards. Testing performed using EOS 7D at focal length of 250mm (400mm in 35mm equivalence).
  • One UD lens element reduces chromatic aberration throughout the zoom range, for excellent image quality with high resolution and contrast.
  • New six-group zoom system provides a compact design while achieving a maximum magnification of 0.29x at the telephoto end.
  • Minimum focusing distance: 2.79 ft./0.85 m (full zoom range).
  • Kit Inlcudes lens, lens cap E-58II, lens dust cap E, instruction book, warranty card

User questions & answers

Question: I'd like to know if the Canon warranty wil be honored by the company if I buy the lens "refurbished
Answer: Greetings,Yes, we are a Canon Authorized Dealer and Therefore any item you buy from us will automatically come with USA and Canada 1 year limited warranty. Please note, we only sell new items not refurbished. Since you ask us about refurbished policy for this item I think it will be a wise idea to Call Canon. If you buy a refurbished Item directly from Canon you will still have the one year warranty with the company. However, we are not sure about other sellers.Attached we include a Canon Phone Number: 1-800-385-2155. Please do not hesitate in contacting us if you have further questions.Best,H and B Digital Team
Question: Will this lens be good for soccer and football when on the sidelines
Answer: This is a subjective question. For the most part, it's not a sports lens. The AF system is not really built to be snappy fast for sports. However, if you are photographing young children, I think it can work, since they are not likely to be as fast as high school aged kids. Also, the limits of the aperture make it hard to use fast shutter speeds without a high ISO, so you will get some noise in the images. If this doesn't bother you then it's not a big deal. If in good light (daylight), then it will be fine so long as you know how to track your subject. For football at night, it's going to be tough. I would look for the bright spots on the field, like where the lights shine the brightest, and try to get photos in those places. Here is how I would set the camera. 1. Tv mode. This lets you control the shutter. Set to 1/500 sec. 2. ISO and aperture are controlled by camera. Make sure ISO is in auto. 3. Set focus to "servo" mode. This makes it so the camera tracks as you hold in the focus. 4. Select a small focus. Depending on your camera, you might have to use just one point. Some will let you choose a small grid. 5. Get focus on your subject and hold the focus to track them as they move around. This will give the STM motor time to find the focus. Shoot when you have the best shot. This is how I shot youth soccer with a SL2/200D and the 55-250mm IS STM. Got plenty of good shots. I'd post them in my review but it is now against Amazon policy to do so. Not sure what happened there, they are just youth league kids playing soccer. If you would like more info about the 55-250mm STM lens, you should check out the review I have on my profile. It covers the pros and cons, offers advice for how to use the lens, and also has suggestions for other lenses that might work for you as well. There are also sample images taken with the lens. Here is a link to the review. https://www.amazon.com/gp/customer-reviews/RBPNM432KPBLO?ref=pf_ov_at_pdctrvw_srp
Question: Would this newer STM lens work well with my EOS T2i I am using the older EF-S 55-250 now that's about 5 years old and looking for faster focus and sharper images....wondering if maybe the 55-250 IS 2 would work just as well as the STM for me...Thanks
Answer: Great question. Some answers for you... It is a better lens than the older IS II model in the following ways: Better optics for better IQ and contrast. Rear focusing so the front element doesn't rotate. Better IS. STM is better than the DC micro motor; it's faster, more accurate, and nearly silent. The focus isn't as fast as say, USM lenses, but you will notice an improvement. If speed of focus is more important in your case, then you should look into the EF 70-300mm F4-5.6 IS II USM instead. Optically, they have very similar IQ, but the 70-300mm has much snappier focus for stills, and is still silent for video like the STM lens. As to how much a difference you will see on your camera? The T2i is a pretty old camera, and IQ wise think you won't see much of a difference. Either of the suggested lenses will look good on your camera, but you might not see a large difference in overall IQ due to the age of the sensor. I think the advantages are that you will see better contrast, have better focus (which leads to more in focus shots), and if you ever move to a newer camera then you will see a difference in IQ with a newer sensor. If you would like more info about either of the lenses I have suggested, you should check out the reviews I have on my profile. Both reviews cover the pros and cons, offer advice for how to use the lens, and has suggestions/comparisons to other lenses you might have considered. There are also sample images. Here are some links. For the 55-250mm - https://www.amazon.com/gp/customer-reviews/RBPNM432KPBLO?ref=pf_ov_at_pdctrvw_srp For the 7i0-300mm - https://www.amazon.com/gp/customer-reviews/RUZO5QNFASTCS?ref=pf_ov_at_pdctrvw_srp For my profile just click my name!
Question: Hi
Answer: The short answer is yes to both questions. The little bit longer answer... 1. It has image stabilization, and for Canon you can tell what lenses do as they will list "IS" in the description of the lens. On this lens, you have 3.5 stops of IS, which is really great since it has such a long reach. Keep in mind though that IS does nothing to help with a moving subject, only a fast shutter speed can help with that. 2. Your camera can use this lens, as well as all other EF and EF-S lenses. This is one of the 4 lenses I suggest to anyone that is learning photography and wants to expand their kit beyond the lens that came with their camera. If you would like more information about the 55-250mm lens, you should check out the review I have on my profile. It covers the pros and cons, offers advice for how to use the lens, and has suggestions/comparisons to other lenses you may have seen. There are also sample images taken with the lens. Here is a link to the review. https://www.amazon.com/gp/customer-reviews/RBPNM432KPBLO?ref=pf_ov_at_pdctrvw_srp

Canon EF-S 55-250mm F4-5.6 is STM Lens for Canon SLR Cameras (Renewed)

Canon

Based on 547 reviews Check latest price

Product description

Canon EF-S lens mount 88-400mm (35mm equivalent) ultra-low dispersion element optical image Stabilizer STM AF stepping motor optimized lens coating full-time manual focus control non-rotating front element & rear focus seven blade Circular diaphragm minimum focus distance: 2.8'

  • Focal length and maximum aperture: 55-250mm 1: 4-5.6
  • Lens construction: 15 elements in 12 groups
  • Diagonal angle of view: 27 Degree 50 ft. - 6 Degree 15 ft.
  • Rear focus system, Closest focusing distance: 0.85M/2.8 ft.

User questions & answers

Question: Does this come with the Canon Front and Rear lens caps
Answer: Yes, it comes with both caps.
Question: Will this lense fit my canon t7i
Answer: The Canon EF-S 55-250mm will fit and operate on the T7i. Keep in mind that the equivalent focal range translates to 88-400mm which is an excellent range for productive photography use. I use this lens often with my Canon 80D and find it produces excellent images and the AF is fast and accuarate. This lens coupled with a standard range lens and the 100mm 1.8 prime lens makes for a very useful lens kit.
Question: Is this lens manufacturer-refurbished or seller refurbished? If Canon-refurbed, how long is the warranty
Answer: Mine was a Canon USA refurb with all of the Canon refurb paperwork. Also, when I registered my lens on the Canon USA product website, it showed it as a Canon USA product, like lenses I purchased from Canon USA refurb before.
Question: Will this fit my Canon T-4i
Answer: Yes, the Canon EF-S 55-250mm F4-5.6 STM fits all Canon crop sensor cameras (EF-S), including the Ti-Rebel series. It is an excellent lens for the price.

Amlong Crystal Premium Optical Glass Double Convex and Concave Lens Set, 50mm Diameter, 3 Double Convex (20, 30, 50cm FL) and 3 Double Concave (20, 30, 50cm FL), 6 Piece Set

Amlong Crystal

Based on 37 reviews Check latest price
  • High Accuracy and Precision
  • Made from High Grade Optical Glass
  • 50mm Diameter, 3 Double Convex (20, 30, 50cm FL) and 3 Double Concave (20, 30, 50cm FL)

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