Posts Tagged “Maximum Aperture”
Sigma 30mm f/1.4 EX DC HSM Lens for Canon Digital SLR Cameras Designed to match the APS-C size image sensors of Canon digital SLR cameras, the Sigma 30mm f/1.4 lens is an ideal choice for a wide range of applications, including snapshots, portraiture, indoor shooting, and landscape photography. The 30mm lens relies on two special-low-dispersion glass elements and a glass-mold aspherical lens. Combined, the construction details correct for all types of chromatic and color aberrations. The lens is also equipped with a Hyper Sonic Motor (HSM) that supports quiet, high-speed autofocus, but also turns off should you prefer full-time manual focusing. Other features include a maximum aperture of f/1.4, a 62mm filter mount, and a one-year warranty.
Specifications
- Focal length: 30mm
- Maximum aperture: f/1.4
- Lens construction: 7 elements in 7 groups
- Angle of view: 45 degrees (SD format)
- Number of diaphragm blades: 8
- Minimum aperture: f/16
- Minimum focusing distance: 15.7 inches
- Maximum magnification: 1:10.4
- Filter size: 62mm
- Corresponding AF mounts: Canon
- Dimensions: 2.97 inches in diameter and 2.3 inches long
- Weight: 15.2 ounces
- Warranty: 1 year
Customer Review: Superb lens, brilliant images, razor sharp! Brief and simple, super quiet focus.
Tags: Brilliant Images, Canon Digital Slr, Canon Digital Slr Cameras, Diaphragm Blades, Digital Slr Cameras, Dispersion Glass, Glass Elements, Glass Mold, Image Sensors, Kennedy Space Center, Landscape Photography, Maximum Aperture, Maximum Magnification, Metal Surfaces, Minimum Aperture, Nasa Kennedy Space, Nasa Kennedy Space Center, Sigma 30mm, Superb Lens, Warranty Specifications
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Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Canon Digital SLR Cameras Designed for exclusive use on Canon digital SLR cameras with smaller-size imagers, this Tamron AF 18-200mm f/3.5-6.3 Di-II aspherical macro zoom lens is ideal for a host of situations. The high-power zoom lens–which offers an equivalent focal length of 28-300mm in 35mm format–adds versatility to your lens menu, zooming from a true wide perspective to an ultra tele zoom, all in an amazingly easy-to-use design. As a result, the lens is ideal for everything from landscape shots to sports and wildlife photography. The lens also incorporates several of Tamron’s proprietary core technologies, including aspherical elements that minimize chromatic aberration, a multiple cam mechanism, and an integrated focus cam design. The technologies combine to create the world’s lightest, most compact 11.1x digital zoom lens. Other features include an angle of view of 75 to 7 degrees, a minimum focusing distance of 17.7 inches, and a 62mm filter diameter. All Tamron lenses carry a six-year warranty.
Note: The Tamron AF 18-200mm f/3.5-6.3 XR Di-II zoom lens is not designed for conventional cameras or digital cameras with image sensors larger than 24mm x 16mm.
Specifications
- Focal length: 18-200mm
- Maximum aperture: f/3.5-6.3
- Lens construction: 15 elements in 13 groups
- Angle of view: 75 to 7 degrees
- Type of zooming: Rotation
- Diaphragm blades: 7
- Minimum aperture: f/22
- Minimum focusing distance: 17.7 inches
- Macro magnification ratio: 1:3.7 (at f=200mm)
- Filter size: 62mm
- Corresponding mounts: Canon
- Lens hood: Yes, flower shaped
- Dimensions: 2.9 inches in diameter and 3.3 inches long
- Weight: 14 ounces
- Warranty: 6 years
Customer Review: Photo Never recieved the lens, so I just went with the canon 55-250 with IS and man that lens for the price and quality is outstanding. Customer Review: Unbeatable value for money Great product, and compact. The perfect choice for a holiday trip without carrying a large volume of photography equipment. The AF is not the quietest, but it is not too bad either. Cannot beat this value for money!
Tags: Aspherical Elements, Cam Design, Cam Mechanism, Canon Digital Slr, Canon Digital Slr Cameras, Canon Lens Hood, Chromatic Aberration, Conventional Cameras, Diaphragm Blades, Digital Slr Cameras, Equivalent Focal Length, Focus Cam, Image Sensors, Landscape Shots, Ld Aspherical, Lens Construction, Magnification Ratio, Maximum Aperture, Minimum Aperture, Tamron Lenses
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Canon EF 50mm f/2.5 Compact Macro Lens Want to bring small things into full-sized view? Turn to the Canon EF 50mm f/2.5 compact macro lens, which can uncover detail that would otherwise be impossible to detect by the naked eye. Ideal for shooting extremely minute subjects such as insects or the petals of a small flower, the lens offers a nine-element design and a floating optical system that focuses down from infinity to one-half life size (0.5x). Despite these macro optics, however, the lens also functions beautifully as a general-purpose normal lens. And should you want to focus down to life size (1:1), you can add an optional Life Size Converter EF to increase the working distance–a valuable feature in close-up shooting. Other details include a 46-degree diagonal angle of view, a 0.8-foot close focusing distance, and a one-year warranty.
Specifications
- Focal length: 50mm
- Maximum aperture: f/2.5
- Lens construction: 9 elements in 8 groups
- Diagonal angle of view: 46 degrees
- Focus adjustment: Front group linear extension system with AFD
- Closest focusing distance: 0.8 feet
- Filter size: 52mm
- Dimensions: 2.7 inches in diameter and 2.5 inches long
- Weight: 9.9 ounces
- Warranty: 1 year
Customer Review: Macro Away. I use the lens for close up product shots for a business that my partner runs. I also use it for shots of my work for my portfolio. It is versatile and takes very clear pics. Overall I really enjoy using it. Customer Review: Nice little lens for the price. I’ve been looking for a reasonably priced macro lens for taking pictures of my husband’s scale models, and wanted to get all of the fine details that a macro lens can find.
Tags: Angle Of View, Canon Ef, Canon Ef 50mm, Element Design, Filter Size, Fine Details, Focus Adjustment, Front Group, Lens Construction, Linear Extension, Macro Lens, Maximum Aperture, Naked Eye, Optical System, Optional Life, Product Shots, Scale Models, Sharper Images, Size Converter, Warranty Specifications
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Canon EF 70-200mm f/2.8L USM Telephoto Zoom Lens for Canon SLR Cameras One of the finest telephoto zoom lenses in Canon’s EF line, this 70-200mm f/2.8 lens offers comparable optics to a single focal-length lens. The lens employs four UD-glass elements to minimize chromatic aberrations, creating sharp, high-quality images regardless of the application. The constant f/2.8 maximum aperture, meanwhile, makes the lens extremely popular among professionals. Other features include an inner focusing system with an Ultra Sonic Motor (USM), a 4.9-foot close focusing distance, and a 77mm filter size. The lens–which is compatible with EF 1.4x II and 2x II extenders–carries a one-year warranty.
Specifications
- Focal length: 70-200mm
- Maximum aperture: f/2.8
- Lens construction: 18 elements in 15 groups
- Diagonal angle of view: 34 to 12 degrees
- Focus adjustment: Inner focusing system with USM
- Zoom system: Rotating type
- Closest focusing distance: 4.9 feet
- Filter size: 77mm
- Dimensions: 3.3 inches in diameter and 7.6 inches long
- Weight: 2.9 pounds
- Warranty: 1 year
Customer Review: First(ish) L I bought this lens just about a month ago after an endorsement from one of the teachers at a photography class I was taking. (The fact that I was taking an introductory photography class should give you some sense of my skill level, and hence perspective…) I’d previously purchased and returned the 300M L, for both quality and usability issues.
Tags: Amateur Photographers, Angle Of View, Cameras Canon, Canon Cameras, Canon Ef, Canon Slr Cameras, Chromatic Aberrations, Filter Size, Focal Length Lens, Focus Adjustment, Glass Elements, Lens Construction, Maximum Aperture, Photography Class, Quality Images, Skill Level, Usability Issues, Warranty Specifications, Zoom Cameras, Zoom Canon
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Sigma 150-500mm f/5-6.3 AF APO DG OS HSM Telephoto Zoom Lens for Canon Digital SLR Cameras The Sigma 150-500mm ultra-telephoto zoom lens covers a telephoto range of up to 500mm, letting you bring almost any subject close for short-perspective shots. The lens employs Sigma’s original Optical Stabilizer (OS) function, which gives you access to shutter speeds approximately four stops slower without blurring the image. As a result, you can capture low-light, long-distance shots such as football plays, wildlife profiles, and landscape scenes without using a tripod for each photo. In addition, the lens incorporates a Hyper Sonic Motor (HSM) for quick, high-speed autofocusing, along with a rear focus system that guarantees optimum image quality throughout the entire zoom range. And photographers will love the three special low dispersion (SLD) glass elements, which correct for chromatic aberration, and the super multilayer lens coating, which reduces flare and ghosting. Other details include an option for full-time manual focusing, a close focusing distance of 86.6 inches, and an 86mm filter size. Compatible with optional 1.4x and 2x tele converters–which produce a 210-700mm length or 300-1000mm length respectively–the Sigma 150-500mm lens carries a one-year warranty.
Specifications
- Focal length: 150-500mm
- Maximum aperture: f/5-6.3
- Lens construction: 21 elements in 15 groups
- Angle of view: 16.4 to 5 degrees
- Number of diaphragm blades: 9
- Minimum aperture: f/22
- Minimum focusing distance: 86.6 inches
- Maximum magnification: 1:5.2
- Filter size: 86mm
- Hood type: Bayonet
- Mount: Canon
- Dimensions: 3.7 inches in diameter and 9.9 inches long
- Weight: 67.4 ounces
- Warranty: 1 year
Customer Review: AWESOME! I am a semi professional photographer and this lens ROCKS! For the price you can’t beat it! When using this lens in auto focus, you can still adjust the focus manually with the shutter half way down (Canon). It helps because when things are far away it is sometimes soft on focus. That is the quick fix! Aside from that, the OS, optical stabilization works great and you would not be disappointed with the results! It is cheaper than an “L” lens and guess what..?…It can shoot fast and sharp! Customer Review: Get it, what are you waiting for? Wowww, I love it! I read all the reviews, asked folks that have one on the photo site flickr.com and anyone else I could. Those that had one had nothing but praise for it. Currently it’s the only lens I’m using and don’t plan on taking it off any time soon. I have used it to get wonderful pictures of eagles, osprey, fox, you name it and it really helps by getting that extra reach that my Sigma 70-300 just couldn’t give me. I use the canon monopod that Amazon sells most of the time when possible but isn’t 100% neccessary especially when trying to capture flying birds ect. The price is great for the bang this lens gives you. I got it from 47st photo in 2 days and with free shipping through Amazon. I’m using it with a Nikon d40 and have been so glad I did. A great blessing! My next upgrade I hope is for the d90, hopefully sooner then latter. The OS works very well but you can’t expect miracles at 500mm if your all over the place. I’ve been trying to zoom out when I begin to track a flying bird at any distance and then zoom in on it as I try to capture it, other wise you’ll never find it. There are 2 settings for the OS and #2 seems to work best for my conditions. If you’ve got decent light and a lot of my shots are early in the morning and in the woods, this lens will astound you. There are at times some hunting, especially if there are vines or obstructions in the way you may have to move the camera a bit to get by them but it’s just seeing what you give it. The lens also does a wonderful job at macro shots by zooming in your close subject. I think 7 ft is the closes it will allow you focus on an object. I did purchase a 7yr extended warrenty by Mack for almost nothing just for that extra peace of mind. Did I say I really, really like this lens! You can check out some of the shots I’ve got by clicking my flickr link here. My e-mail address is there as well if you have any further questions. Hope this helps. BTW, my wife has really enjoyed the results this lens has helped me get. Hey that’s always a good thing;) http://www.flickr.com/photos/21183284@N05/
Tags: Canon Digital Slr, Canon Digital Slr Cameras, Chromatic Aberration, Diaphragm Blades, Digital Slr Cameras, Filter Size, Focus System, Glass Elements, Landscape Scenes, Lens Coating, Lens Construction, Maximum Aperture, Maximum Magnification, Minimum Aperture, Optimum Image Quality, Professional Photographer, Shutter Speeds, Telephoto Range, Warranty Specifications, Wildlife Profiles
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Canon EF 16-35mm f/2.8L II USM Ultra Wide Angle Zoom Lens Broaden your perspective with the Canon EF 16-35mm ultra-wide-angle zoom lens. Specifically designed for improved edge-to-edge image quality that meets the strict requirements of professional and high-end amateur photographers alike, the lens lets you bring more area into focus while providing greater depth of field. The lens features three high-precision aspherical lens elements–ground, replica, and GMo–that produce even better image quality than the original Canon EF 16-35mm USM lens. The circular aperture, meanwhile, produces a beautiful and natural background blur when shooting at wider apertures. Other details include internal focusing, a ring-type ultra-sonic monitor (USM), and new AF algorithms for fast and quiet autofocusing. The lens carries a one-year warranty.
- Focal length: 16-35mm
- Maximum aperture: f/2.8
- Lens construction: 16 elements in 12 groups
- Diagonal angle of view: 108 degrees (at 10 feet) to 63 degrees
- Focus adjustment: AF with full-time manual
- Closest focusing distance: 0.92 feet
- Filter size: 82mm, P=0.75mm/1 filter
- Dimensions: 3.5 inches in diameter, 4.4 inches long
- Weight: 1.41 pounds
Customer Review: Good Canon L Lens but not for the price. Again, Canon L lens will never disappointed any photographers this 16-35mm f/2.8L II USM is no exception and it will allow you to shoot in very tight pace without moving back, I had a chance to try it from my friend while I have my own EF24-70mm f/2.8L USM. This 16-35mm is going to give you super image quality with just a little distortion that you can’t barely notice until you enlarge final print, to me it’s nothing better than canon 24-70mm F/2.8L USM. Except its version II. I have also thanks to my best friend allows me to try it before I decide to make some upgrade. I’ll keep my own. Here is some side by side comparison, so future users could use some help.
Tags: 8l, Amateur Photographers, Angle Of View, Background Blur, Canon Ef, Circular Aperture, Construction Groups, Depth Of Field, Filter Size, Focus Adjustment, Image Quality, Lens Construction, Lens Elements, Maximum Aperture, Natural Background, Side Comparison, Strict Requirements, Usm, Wide Angle, Zoom Canon
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Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens for Canon SLR Cameras Broaden your perspective with the Canon EF 17-40mm ultra-wide-angle zoom lens. Ideal for both film and digital SLR cameras, the lens offers three aspherical lens elements in addition to a Super UD (ultra-low dispersion) glass element, creating superior optics in all conditions. In addition, the lens focuses as close as 11 inches (0.28mm), and offers both Canon’s full-time manual focus and a powerful ring-type ultra-sonic monitor (USM) that produces fast and silent autofocus. Other features include a constant f/4 maximum aperture, the choice of screw-in 77mm filters or a holder in the rear of the lens for up to three gel filters, and optical coatings optimized for use with digital cameras. Boasting weather-resistant construction similar to other high-end L-series cameras, the lens carries a one-year warranty.
- Focal length: 17-40mm
- Maximum aperture: 1:4
- Lens construction: 12 elements in 9 groups
- Diagonal angle of view: 104 to 57 degrees (at 30 feet)
- Focus adjustment: Inner focusing system with USM
- Closest focusing distance: 0.9 feet
- Zoom system: Rotating type
- Filter size: 77mm
- Dimensions: 3.3 inches in diameter, 3.8 inches long
- Weight: 1.1 pounds
Customer Review: Definitely worth it. I own a lot of L series lenses from Canon and love this lens. I used it for a year on my 40D and was pleased, not extatic. Upon upgrading to the 5Dm2 I became extatic. The quality is great on a crop factor but when you compare it to the full frame, you will notice the difference.
Tags: 40d, 40mm, Angle Of View, Aspherical Lens Elements, Cameras Canon, Canon Ef, Canon Slr Cameras, Digital Slr Cameras, Dispersion Glass, Fender Stratocaster, Filter Size, Focus Adjustment, Lens Construction, Manual Focus, Maximum Aperture, Optical Coatings, Resistant Construction, Series Cameras, Series Lenses, Type Filter
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Sigma 50mm f/1.4 EX DG HSM Lens for Canon Digital SLR Cameras The Sigma Corporation is pleased to announce the new large aperture 50mm F1.4 EX DG HSM standard lens. This is a large aperture prime lens with a standard focal length of 50mm, ideal for all digital SLR cameras. This lens has superior peripheral brightness even at the maximum aperture and corrects a possible sagittal coma flare. This lens is perfectly suited for a wide range of subjects enabling outstanding, sharply defined images against a nicely blurred background. The fast, F1.4 aperture makes this lens desirable for use with Digital SLR cameras. This lens effectively becomes a 80mm medium telephoto lens on digital cameras with APS-C size image sensors. The optimum optical design and molded glass aspherical lens elements provide excellent correction for all types of aberrations. The super multi-layer lens coating reduces flare and ghosting. Superior optical performance is also ensured throughout the focusing range. This lens has a minimum focusing distance of 17.7″ (45cm) and has maximum magnification of 1:7.4. It creates a very attractive blur, even when a small aperture is used. This lens incorporates HSM (Hyper Sonic Motor), which ensures a quiet and high-speed AF as well as full-time manual focus override. Minimum Aperture - F16 Filter Size - Diameter 77mm / 3 in. Dimensions - Diameter 84.5mm X Length 68.2mm / 3.3 in. X 2.7 in. Weight - 505g / 17.8 oz Customer Review: Great quality - liked better than the Canon I purchased both of the lenses and took pictures to compare the two side by side — I liked the looks of the Sigma lens better. Customer Review: backfocus problem I received the lens and returned it the next day, because it has a very serious backfocus problem. Sigma really needs to solve this problem. We had a high hope on this lens, however, the experience is disappointing.
Tags: C Size, Canon Digital, Canon Digital Slr, Canon Digital Slr Cameras, Canon Slr, Digital Slr Cameras, Filter Size, High Hope, Image Sensors, Lens Coating, Lens Elements, Maximum Aperture, Maximum Magnification, Medium Telephoto Lens, Minimum Aperture, Molded Glass, Optical Performance, Prime Lens, Sigma Corporation, Sigma Lens
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Canon EF-S 17-55mm f/2.8 IS USM Lens for Canon DSLR Cameras Designed to meet consumer demands for a fast EF-S zoom lens, the EF-S 17-55mm offers image quality on par with Canon’s highly regarded L-series lenses. The lens features a large circular aperture that produces a shallow depth of field, creating background blur that draws special attention to the photographic subject. The lens construction, meanwhile, includes UD and aspherical elements that deliver impressive image quality throughout the entire zoom range. And thanks to the Image Stabilizer lens groups–which shift to compensate for camera shake–the image appears crisp and clear on the image plane, eve in dim light. Finally, the lens offers a ring-type ultra-sonic monitor (USM), inner focusing, and new AF algorithms to help achieve autofocus quickly and quietly, along with full-time mechanical manual focusing that makes it possible to manually adjust the focus even in AF mode. As with all Canon lenses, this lens carries a one-year warranty.
- Focal length: 17-55mm
- Maximum aperture: f/2.8
- Lens construction: 19 elements in 12 groups
- Diagonal angle of view: 78 degrees (at 30 feet) to 27 degrees (at 50 feet)
- Focus adjustment: AF with full-time manual
- Closest focusing distance: 1.15 feet
- Zoom system: 5-group helical zoom (front group moves 27mm)
- Filter size: 77mm
- Dimensions: 3.3 inches in diameter, 4.4 inches long
- Weight: 22.8 ounces
Customer Review: Perfect Lens for a 1.6 crop. I purchased the 17-55mm about a month ago, and was very happy with the quality of images the lens produced. I like night photography and the f/2.8 helped alot, even when shooting without using a tripod. There are alot of good things to say about this lens, i know alot of people are in love with it, maybe because it’s one of few lenses that Canon produce for the 1.6 crop cameras? Well on day 2 of having the lens, i was shooting outdoor and noticed a few dust particals behind the front glass. It was not fun to see dust from the 2nd day of getting the lens, specially after paying that amount of cash. I kept using the lens for almost 3 weeks, and everytime i shoot outdoor i noticed more and more DUST particals in my lens. So i decided to return the lens for a full refund. Amazon did the refund very fast, it just took like 2-3 days to get the money back. Thanks Amazon for a great and honest support. Well after getting the money back, i placed an order for 2 other lenses from Amazon. EF 17-40mm f/4L USM and EF 50mm f1.4 USM. I just could not stand the dust issue, and i have read that they won’t effect the image quality or the foucs. I also have friends that have been using this lens for a while now, without having the DUST issue. I guess i was not lucky.
Tags: Aspherical Elements, Background Blur, Cameras Canon, Canon Dslr Cameras, Canon Ef, Canon Ef S 17 55mm F, Canon Lenses, Circular Aperture, Focus Adjustment, Image Plane, Image Stabilizer, Impressive Image, Lens Construction, Lens Groups, Maximum Aperture, Night Photography, Particals, Photographic Subject, Series Lenses, Shallow Depth Of Field
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Canon EF 70-200mm f/4 L IS USM Lens for Canon Digital SLR Cameras Capture the far-off action of fast-paced sports or zoom in for an intimate portrait with the Canon EF 70-200mm telephoto zoom lens. The L-series lens offers an Image Stabilizer that provides up to four stops of shake correction–a first for Canon IS lenses. The use of fluorite UD lens elements, meanwhile, produces an excellent optical performance in terms of resolution and contrast. Add in a sturdy housing with water- and dust-proof construction and you have a lens that’s both portable and high performing. Other details include an f/4 maximum aperture, a ring-type ultra-sonic monitor (USM) that enables quick and quiet autofocusing, compatibility with circular polarizing filters, and a lightweight body. The lens carries a one-year warranty.
Tags: Cameras Canon, Canon Digital, Canon Digital Slr, Canon Digital Slr Cameras, Canon Ef, Digital Slr Cameras, Dust Proof, Filter Size, Focus Adjustment, Frame Cameras, Grade Lens, Image Stabilizer, Lens Construction, Lens Elements, Lightweight Body, Maximum Aperture, Polarizing Filters, Proof Construction, Quality Man, Water And Dust
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