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Tamron AF 17-50mm F/2.8 XR Di-II LD SP ZL Aspherical (IF) Zoom Lens for Canon Digital SLR Cameras | 
 enlarge | Brand: Tamron
Category: Photography
List Price: $763.95
Buy New: $404.99
You Save: $358.96 (47%)
New (5) Used (1) from $359.00
Rating:  62 reviews
Media: Electronics
Optical Zoom: 3
Maximum Focal Length: 50
Minimum Focal Length: 17
Shipping Weight (lbs): 1.3
Dimensions (in): 5.3 x 4.1 x 4.1
MPN: AF016C-700
Model: AF016C-700
UPC: 725211167013
EAN: 0725211167013
ASIN: B000EXR0SI
Release Date: March 8, 2006
Availability: Usually ships in 24 hours
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| Features:
| • | 17-50mm aspherical zoom lens with f/2.8 maximum aperture for Canon DSLR cameras | | • | Delivers fast shutter speeds and natural soft-focus effect to produce sophisticated results | | • | 3 elements of XR glass, 2 hybrid aspherical lens elements, and 1 element of LD glass | | • | Minimum focus distance of 10.6 inches; internal coatings eliminate ghosting and flare | | • | Measures 2.9 inches in diameter and 3.3 inches long; weighs 15.2 ounces; 6-year warranty |
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| Editorial Reviews:
Amazon.com Product Description
The Tamron AF 17-50mm aspherical lens expands on the popularity of the AF 28-75mm f/2.8 XR Di zoom, with a 17mm focal length that offers a wider angle of view than an ordinary standard zoom lens. Designed exclusively for digital SLR cameras with smaller-size imagers (24 x 16mm or smaller), the 17-50mm standard zoom is extremely lightweight and compact for its speed. And with a fast f/2.8 maximum aperture throughout the range, it delivers fast shutter speeds and a natural soft-focus effect that makes your photography even more sophisticated than usual. Superior image quality
Constructed with cutting-edge Tamron elements--three elements of XR (extra-refractive index) glass, two hybrid aspherical lens elements, and one element of LD glass--this elegant piece of technology inherits Tamron's tradition of premium image quality and compact size. By incorporating Tamron's SP (super performance) and Di-II (designed exclusively for digital cameras) specifications, along with special internal surface coatings to eliminate ghosting and flare, you're guaranteed to get the superior performance you need from your digital camera. Broadening your horizons
Tamron's SP AF17-50mm offers a wider angle than the standard 18mm zoom lenses ordinarily used with digital cameras. With a wider-angle focal length of 17mm (26mm equivalent), this lens is unbeatable for indoor photography, and for capturing full-length people shots or an entire building. The lens is also top-level in its class for minimum focus distance at 27cm (10.6 inches) across the entire zoom range, making it easier than ever to enjoy the creative combination of wide-angle and macro photography. - Focal length: 17-50mm
- Maximum aperture: f/2.8
- Angle of view (diagonal): 78 degrees (at 45 feet) to 31 degrees (11 feet)
- Lens construction: 16 elements in 13 groups
- Minimum focus distance: 10.6 inches
- Maximum mag ratio: 1:4.5
- Filter size: 67mm
- Diaphragm blades: 7
- Minimum aperture: f/32
- Standard accessory: Flower-shaped hood
- Compatible mount: Canon AF, Konica Minolta AF-D, and Nikon AF-D
- Dimensions: 2.9 inches in diameter and 3.3 inches long
- Weight:15.2 ounces
Product Description
Lenses are designed for exclusive use on digital cameras with smaller-size imagers and inherit all of the benefits of our Di products. These lenses are not designed for 35mm film cameras and digital cameras with image sensors larger than 24mm x 16mm. The SP AF17-50mm F/2.8 is a lightweight, compact, fast standard zoom lens designed exclusively for digital SLR cameras, expanding the product concept of the popular SP AF28-75mm F/2.8 zoom lens. In addition, portrait shots are made beautiful with the natural out-of-focus effect characteristic provided by the fast F/2.8 aperture. A broader photographic expression through the use of faster shutter speeds as a result of the maximum aperture offers enhanced photographic pleasure. The lens boasts one of the best close-up shooting performances in the class of fast standard zoom lenses designed exclusively for digital cameras and featuring an F/2.8 maximum aperture throughout the entire zoom range, to ensure stress-free photographic shots at all focal lengths and distances. Diameter x Length - 2.9 x 3.2 inch (74.0 x 81.7mm) Accessory Flower shaped lens hood
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| Customer Reviews: Read 57 more reviews...
 Best value but not as sharp as expected September 5, 2008
Allison Lombardi (Eugene, OR)
I purchased this lens for use with a Canon 40D. After reading the reviews here of how sharp it is, I decided to give it a try. I do believe I got a good copy and I didn't notice any issues with front focus, but my pictures weren't as sharp as I expected. The focus is fast although a bit noisy and the fast aperture is nice in low light. Its a nice indoor range for a cropped sensor. All in all its a best value, still I felt most of my pictures were lacking some contrast and sharpness. FWIW I shot in nothing but RAW on my Canon 40D, and could fix the contrast.
Ultimately I sent it back and am now looking to replace this range with canon "L" glass. There's no substitute for L, if you can save up a little extra do it. If you're on a budget then this lens will produce some great shots just not consistently.
 Excellent Value September 5, 2008
K. Kathmann (Minnesota, USA)
This lens is a great value. Sharp, high contrast images even at large apertures. Great for portraits, landscapes and general "walkaround" photography. Appears to have a warmer color balance than my Canon 28-135mm lens. I noticed some chromatic aberration at small apertures, f/16, f/22 (other reviews do not concur with this). I'm guessing this lens was optimized for use at large apertures.
Has a quality, solid feel for its price. The zoom ring rotates in the opposite direction to other canon zooms, which can be annoying if not used often. I feel safe using this often with it's 6-year warranty.
My other Canon lens Canon EF 28-135mm f/3.5-5.6 IS USM Standard Zoom Lens for Canon SLR Cameras seems to have a more neutral color balance, lower contrast and less chromatic aberration at small apertures, so I'll be sticking with that for product photography.
The comparable Canon lens to this, Canon EF-S 17-55mm f/2.8 IS USM Lens for Canon DSLR Cameras is almost $600 more. I don't think that it is $600 better - maybe if it were $300-400 more than this lens it would be competitive.
If you don't have money to burn this is an excellent lens.
 Not So Great Lens August 23, 2008
M. A. Aziz (malaysia)
Own this lens but very disappointed with the image quality. My cheap Canon 50mm f1.8 lens produced much superior images. Would probably trade-in for Canon 16-35mm or 17-40mm lens in the near future.
Tamron 17-50 Lens - Alright if you don't use it much. August 18, 2008
Brian Akerson (Manassas, VA)
2 out of 2 found this review helpful
I am not impressed by this lens. I, once again, should have waited until I could afford the Nikon 17-55 f/2.8 before I bought this lens. I shoot NASCAR Whelen All American Series races at a local short track on Saturday nights. On the average night I shoot approximately 400-600 shots. I didn't use this lens for very much else, but within 2 months it already went downhill. Hopefully I might be getting it back from Tamron soon. At the point where I sent it back, the lens was vignetting where it hadn't before and every now and then the aperture failed to open.
As far as sharpness goes, I think it's wonderful. This lens is definitely not made for lots of shooting. It's built very light as compared to the Nikon variant. I compared the photos from this lens to the photos from the Nikon and they were very close as far as sharpness goes. In my opinion this is the best lens Tamron has produced. But, that isn't saying much.
If you're a casual shooter, this lens is for you. If you like to shoot a few hundred frames a week, I would not recommend it. After it gets back from being repaired I will update this if things get better. I'm not expecting much, though.
Sharp lens, iffy focus July 29, 2008
B. Lee
2 out of 2 found this review helpful
From the first shots I took with this lens I was amazed by the sharpness. To my eye it looked much better than my 28-135 lens -- when it's in focus, it's great. But the focus is the problem, for my copy at least, on a 40D, the autofocus was all over the map. In normal shooting I was noticing that the focus was way off way too often, my subject would be out of focus or just barely in focus, and the ground close to me or stuff in the background would be perfectly sharp. So I did some controlled tests and found that even in ideal conditions it was missing the correct focus on more than 1 in 3 shots. As in focus bad enough that the correct focus point was just on the edge of or outside the in focus DoF more than 1/3rd of the time. It looked like there was a tendency to front focus at the 50 end (which was what I was noticing in real world shooting) and back focus at the 17 end (which was just making landscapes soft), but overall I'd say it just tended to be really inconsistent, missing in either direction from one shot to the next. I also had a lot of exposure problems with this lens, but it's the widest lens I've shot with so I don't know if that's the lens or the camera.
If you're willing to take multiple shots of everything, or manually focus, or if you get a better copy or if it works better on other bodies . . . as I say, when it's in focus it's a really nice, sharp lens. It hooked me on the first shots, enough so that I was willing to overlook the misfocused ones as flukes or user error. When it kept happening I started thinking, it's a bargain lens, when it does get it right it gets it really right. But after a couple weeks worth of looking at missed shots it wasn't worth it to me any more.
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