Showing posts with label xr. Show all posts
Showing posts with label xr. Show all posts

Tuesday, March 2, 2010

Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon Digital SLR Cameras

Review Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon Digital SLR Cameras


Buy Cheap Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon Digital SLR Cameras From Here Now!

Tamron's new SP AF 17-50mm F/ 2.8 acts RDI II VC covers the heavily used 17-50 MM focal distance range (angle of view equivalent of 26-78 MM when converted to the full frame format) making it an extremely versatile, high performance zoom lens. Achieving sharpness and striking contrast, the lens produces beautiful images that are enhanced by the shallow depth of field afforded by the maximum aperture F/2.8 and enriches the user’s range of photographic expression. The new lenses equipped with Tamron’s proprietary vibration compensation (VC) image stabilization mechanism, which provides more opportunities for handheld photography, such as low light conditions like evening, night scenes and indoors, leading to dramatically enhanced level of photographic freedom. Technical specifications: focal length 17 - 50 MM: format size APS – C: maximum aperture F/2.8; minimum aperture F/ 32; diagonal angle of view 78 degree and 45 minute - 31 degree and 11 minute; lens construction 19 elements, 14 groups; minimum focusing distance 11.4-Inch (0.29m); maximum magnification ratio 1:4 0.8; filter diameter 72 mm; overall length 3.7 inches maximum diameter 3.13 inches; weight 20.15oz. 570g; diaphragm blades-seven; standard accessory flower shaped lens hood; Canon mount.
Readmore

Technical Details

- Compact Fast Zoom with VC (Vibration Compensation).
- Fast Constant F/2.8 Aperture.
- For use on APS-C size DSLR cameras.
- 11.4-Inch minimum focusing distance / 1: 4.8 Maximum magnification ratio.
- Internal Focusing.
See more technical details
Customer Buzz
 "This is a night owl lens" 2010-02-11
By KamikazeAce
If you like low light photography this is the one lens you can get away with 1/2 shutter speeds and ISO 400 wide open. Before this I had the Tamron 28-75mm 2.8 and I can tell you that to get such low shutter speeds I had to increase the ISO 1600 and wide open which produce unflattering grain on the pictures. I wish I had this lens for those situations. One note of caution tho and that is the recommended shutter speed to freeze people is 1/60. They have to stand very still for you to get any lower but this creates also some creativity. I have gone to car shows and taken pictures of cars at low shutter speeds and you can see people streaking by like in those magazine pictures. What I didn't like about the lens was a shown vignetting wide open which shows in bright day light when shooting the sky. I thought it was my lens but upon some further research on the internet I am not alone. It is a short coming of the lens but corrects itself by f4. I usually use vignetting correcting software. Nevertheless, this is a night owl's lens and I like shooting in low light so I am happy with it besides who is selling an f2.8 constant with some vibration control. In regards to the reach, well, I thought about it, 17-50mm is not much but then again if you go longer you will need to increase the shutter speed further. They probably thought of this. I will now put it to use in museums, car shows, festivals, the works. Happy shooting!

Customer Buzz
 "I am not impressed at all with this lens" 2010-02-09
By Tayaran
OK, first I am not a professional photographer, but photography is my hobby and I have been doing for a while. My ratings are in line with my expectations from the lens, so please when deciding if you want to purchase this item take this into consideration. What did I need this lens for: basically just to take shots of my kids inside my house, lit with incandescent lamps. the 50mm f1.8 did not do it for me since my rooms are small and I am only able to take pictures of half the body shot. After looking around I wanted a lens that gives me a wide range and will work without flash in my environment. I used an XSI with this lens and I had to crank the ISO to 800. The first surprise was that the lens rotates in an opposite way to the Canon lenses I had, so this was awkward for a while. The lens is not very heavy which is good. I took about 150 pictures in the environment I described above and I was very very very disappointed. The pictures were very soft, no contrast and noisy (granted the noise is generated from my high ISO). At best I was able to get 1/30 from this lens which honestly I thought it would be a little bit faster. Again, I did not try it in broad daylight or outside because I already have my canon lenses for that. I ended up returning it.

Customer Buzz
 "great lens" 2010-02-05
By Theodore Post
I've had this lens for three months and it is sharp. The lens is well made and the zoom works smoothly and quietly. I would highly recommend it

Customer Buzz
 "Great upgrade over non-VC version, best bang for the buck!" 2009-12-28
By A. Malske (WI, United States)
I've been using Tamron 17-50mm non-VC version for about a 1.5 years and while I was upgrading XTi on 7D I decided to pull the trigger on VC version of the lens and placed a pre-order. Some reviewers, including the-digital-picture.com which opinion I highly respect mentioned that the lens isn't sharp wide open and generally quality is not as good as non-VC. I was extremely happy with non-VC and expected nothing less than amazing results from VC version. I had both of them for about a week and had a chance to compare side-by-side and do some tests.

So my tests revealed that my copy of VC is as good or in some instances better than my old non-VC (which was extremely sharp!). It's absolutely fantastic at 2.8 and there is a slight improvement stepping down. My guess is that people who commented on bad quality just got a bad copy.

It's not a Canon 17-55mm f/2.8 IS USM since it's doesn't have USM motor, but on VC version motor is much better, quieter and if VC is Off it's reasonably fast. Image quality wise I think this lens is very much on par with Canon so if you want to save a bit, have a 6 year warranty and have similar quality - go with Tamron!

Customer Buzz
 "You will not be disappointed" 2009-12-22
By HDYjr.
I purchased this lens when it became available in late November and have had a few weeks to shoot with it. This lens is used in conjunction with a Canon Rebel T1i. I originally purchased the non-VC version of this lens but returned it after a week or so simply because I was not "WOWED" with its performance (relatively slow auto focus, somewhat soft wide open, color and contrast seemed a bit lacking and it seemed to produce more noise than other lenses I've used on this camera).



This lens has none of those problems. I really can't get over how well it performs in low-light situations. I get a lot of keepers at 1/5 of a second. It's really sharp also. I have a 5D Mark II and a few L lenses and I find myself picking up my Rebel and this lens more and more often. If you are considering this lens I recommend it 100%.


Images Product

Buy Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon Digital SLR Cameras Now
Buy Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon Digital SLR Cameras |
Cheap Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon Digital SLR Cameras | Low Price Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon Digital SLR Cameras | Best Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon Digital SLR Cameras | Order Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon Digital SLR Cameras | Good Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon Digital SLR Cameras | Lowest Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon Digital SLR Cameras | Save Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon Digital SLR Cameras | Discount Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon Digital SLR Cameras | Purchase Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon Digital SLR Cameras | Shop Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon Digital SLR Cameras | Buying Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon Digital SLR Cameras | Where Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon Digital SLR Cameras

Thursday, February 25, 2010

Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Canon Digital SLR Cameras

Review Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Canon Digital SLR Cameras


Buy Cheap Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Canon Digital SLR Cameras From Here Now!

Lenses are designed for exclusive use on digital cameras with smaller-size imagers and inherit all of the benefits of the Di products. These lenses are not designed for 35mm film cameras and digital cameras with image sensors larger than 24mm x 16mm.At Tamron, quest has always been to make the ideal zoom lens. As a result of this ongoing challenge, Tamron has introduced the concept of the high-power zoom lens in the new AF18-200mm XR Di II for exclusive use with digital SLRs. Tamron's original development of proprietary core technologies such as Aspherical element production, Multiple Cam Mechanism and Integrated Focus Cam design lend to the creation of the world's lightest, most compact 11.1X zoom lens made for digital SLR cameras.The 18-200mm (28-300 when converted to 35mm) provides the digital photographer with the versatility of a true wide to ultra tele-zoom in an amazingly easy to use design.
Readmore

Technical Details

- Since the lens is designed exclusively for digital SLR photography, it provides high image quality in terms of resolution
- It employs a new optical system designed to confine the changing angles of incidences of light rays reaching the imager over the entire image field.
- Peripheral light fall-off is minimized when compared with that of conventional lenses
- Complicated mechanisms are built in the compact body thanks to new mechanical artifices. The lens is a multi-purpose zoom lens,excellent portability
- The Zoom Lock prevents unwanted barrel extension when carrying the lens/camera combination
See more technical details
Customer Buzz
 "S-L-O-W focus lens" 2010-02-24
By S. Condray (2nd star to the right)
took this on a recent trip to Cuba (yes, Cuba... I went there legally to do "religious encouragement"... at least that's what I told the State department... I actually wanted to do some taste tests of local rum)



This is a decent walk-around lens, and paired with my Canon T1i produced lots of usable photos, but on the whole it just isn't that great. The vignetting is quite noticeable, the distortion and chromatic aberration was bearable but also noticeable, and the colors weren't as saturated as I would have liked.



BUT!!! It's cheap and it covers a HUGE range, meaning it really does do quite a bit for significantly lower cost than one of the astronomically overpriced canon lenses.



I could live with everything else given the price (truly a steal for this price) except the slow focusing. Especially in medium-low light this thing would just sit and spin (and I never liked those even when I was a kid... I used to get dizzy and throw up... maybe this just brings that to mind and makes me want to vomit). About a dozen really great shots were flubbed because this lens simply didn't focus quickly enough.



If you take pictures of landscapes and people that pose for the picture and don't move and want the versatility in a single reasonably priced lens, then this lens would be great for you. It's light and not too big and takes reasonably decent photos (especially for the price).



I decided I couldn't deal with the slow focus and upgraded to the canon L series (at 4 times the cost I get less range but better sharpness and faster focus).

Customer Buzz
 "Excellent All Round Lens" 2010-02-21
By Puneet Kohli
Extremely well rounded lens. Does away with the need of changing lenses. Only the AF is a bit noisy compared to SIGMA or Canon lenses.

Customer Buzz
 "Tamron Superzoom" 2010-02-05
By James P. Malone
Great lens for full time use. IQ isn't 'L' quality but who can afford lenses like that? The Vibration Control enables me, at 75, to take photos at long end of lens, something I couldn't do on the 18-200 lens I had before this one. Service and delivery were great also.

Customer Buzz
 "Good price, good value" 2010-02-04
By A. STURZA (Somewhere in Texas)
A litlle PO by the fact that a week after I bought this lens they came out with an even better one.

None the less GREAT LENS, Great Price.



Customer Buzz
 "Great all-purpose lens" 2010-01-09
By J. Bruning (Lindon, UT USA)
Great all-purpose lens. Not an expert photog, but the lens is very versatile and functions well. Good in moderate light as well. Would recommend the lens.


Images Product

Buy Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Canon Digital SLR Cameras Now
Buy Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Canon Digital SLR Cameras |
Cheap Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Canon Digital SLR Cameras | Low Price Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Canon Digital SLR Cameras | Best Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Canon Digital SLR Cameras | Order Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Canon Digital SLR Cameras | Good Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Canon Digital SLR Cameras | Lowest Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Canon Digital SLR Cameras | Save Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Canon Digital SLR Cameras | Discount Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Canon Digital SLR Cameras | Purchase Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Canon Digital SLR Cameras | Shop Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Canon Digital SLR Cameras | Buying Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Canon Digital SLR Cameras | Where Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Canon Digital SLR Cameras

Wednesday, February 24, 2010

Tamron AF 17-50mm F/2.8 XR Di-II LD SP ZL Aspherical (IF) Zoom Lens for Canon Digital SLR Cameras

Review Tamron AF 17-50mm F/2.8 XR Di-II LD SP ZL Aspherical (IF) Zoom Lens for Canon Digital SLR Cameras


Buy Cheap Tamron AF 17-50mm F/2.8 XR Di-II LD SP ZL Aspherical (IF) Zoom Lens for Canon Digital SLR Cameras From Here Now!

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. Additionally, 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.
Readmore

Technical Details

- 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
See more technical details
Customer Buzz
 "I'm not a Tamron fan but this lens is changing my opinion" 2010-02-23
By Keith M. Anderson (Moss Beach, CA United States)
This is not my first Tamron lens, I've had others that I've returned or re-sold after using for a while. Needless to say I'm not much of a fan. I don't know what prompted me to try them again, but I'm glad I did. I was previously using a Sigma 28-70 on an APS-C sensor dSLR. For routine shooting of family events, the Sigma was a bit too long of a focal length. I purchased this after considering other lenses made by Canon, Sigma, and Tokina. I read up on users' opinions of the lenses and decided that the Tamron was so widely loved and seemed to be such good value for the money, I'd give them one last shot.



The lens is now the one I shoot with for just about everything. I have an ultra-wide, a macro, and a tele with IS. I use each of those ones about 5% each, and this one about 85% of the time.



Why did this one change my mind?



The build quality is very good. The image quality is outstanding, with very crisp images even at f/2.8. Bokeh is lovely. It's perfect for travel if you can only take one lens. Its perfect for snaps of family indoors or out since the aperture is f/2.8 throughout the whole zoom range. Unlike the Tamron lenses like their 28-300 (for example), this lens isn't soft and doesn't have a beige cast to the photos, its contrasty and has good color rendition.



Nice job Tamron!

Customer Buzz
 "I'd give it 4.5 stars if I could..." 2010-02-14
By S.S. (Lexington, VA)
I'm not sure I can add much to the very comprehensive reviews already submitted for this lens. Because there is already so much written about this lens, I'll try to keep this brief. By and large, I agree with others: this is a solidly built lens, it covers a very convenient "walk-around" focal range for a 1.6x APS-C DSLR, it has most of the features I was looking for, and it has very good optics.



Like many others, I was unwilling to shell out the dough for the comparable Canon model (17-55 IS), which would have cost me about two-and-a-half times more money. I also decided not to pay extra for the Vibration Controlled (VC) model, based on reports that the optical quality of the VC version was inferior. I opted for better sharpness and a lower price-point over the extra 3-stops or so of hand-held shooting that the VC offers (plus, I've heard that the VC is a bit loud in operation, but I've not tried one).



I've had the lens for only a few days, but my initial impressions are very positive. I did a quick comparison between this lens (at 50mm) and the Canon 50mm f/1.8. Wide open, the prime lens was much sharper in the corners, but the Tamron held its own in center sharpness. When the Canon was stopped-down to 2.8 (to equal the Tamron wide-open), the disparity was much more glaring; the Tamron wide-open at 50mm just cannot compete with the sharpness of the prime at f/2.8. But I think the Tamron's corner sharpness tends to fall off as you move outward in the zoom range, so corner softness seems less of an issue at the wider focal lengths. Stopped down to f/4, the Tamron starts closing the gap, and by f/5.6 or so, I would say the advantage is negligible (though still noticeable if viewed at 100%). My conclusion from this unscientific comparison? This Tamron is excellent glass. For an inexpensive zoom to compete with (even if not surpassing) the sharpness of a notoriously sharp prime lens is impressive (the 50mm 1.8 is pretty sharp, and it is exceptionally so for its price). Yes, corner sharpness lags a bit, but that is to be expected from a zoom that isn't priced at four digits or above. All things considered, including price, this lens performs very well in the area of sharpness, in my opinion. One other note about this comparison: the Tamron at 50mm was slightly wider than the Canon 50mm. This is neither good nor bad, just noteworthy.



Some other notes: build quality is sturdy. The lens mount is metal, and the barrel is plastic, but the plastic could be mistaken for metal. The lens does not feel cheap or chintzy--you can tell there is plenty of glass in there--but it is reasonably light-weight. It zooms fluidly but not sloppily: there is a good level of resistance in the zoom ring. I was pleasantly surprised with the focusing speed--pretty quick--and accuracy seems very good, too. But, focusing is a bit noisy, with a high-pitch buzz coming from the motor. Definitely not on par, sound wise, with the USM lens I replaced with this (but probably not quite as loud as the Canon 50mm f/1.8). Not a big deal for me, but if you wanted to shoot events with this lens (such as weddings), the focus motor will make it harder to remain inconspicuous.



Some other very minor nits: There is no full-time manual focus, and the focus ring turns during auto-focusing. This is not really a big deal, but I have to be careful not to interfere with the focus ring with my support hand during shooting. The lens is fairly compact, so if you have big hands you may need to train yourself to stay off the focus ring. I really with it featured full-time manual focusing. Also, while the lens is quite compact, it does grow 30-40% or so as it zooms out. There is a zoom lock switch to lock the lens at 17mm during storage. The included hood is a nice touch, but feels a bit cheap.



All in all, bravo to Tamron. I don't think this is a perfect lens (hence the 4.5 stars), but it is a very practical lens. For its price and its type, it is very sharp. I can't fault it for the lack of full-time manual focusing, because I knew it lacked that feature when I bought it. This lens is a fantastic and inexpensive alternative is the DSLR "walk-around" zoom class.

Customer Buzz
 "expectations?" 2010-01-20
By RGR (USA)
Not a big "reviewer", but I have to comment on this piece of equipment. This was my first non-Canon lens purchase. MAN, did I have my expectations "set too low". This is a very high quality lens, every bit as high quality as any Canon lenses I have shot.

Customer Buzz
 "there is a new version of this lens, with VC" 2009-12-16
By J. Wilkinson (Baltimore, MD USA)
FYI, Tamron has released a new version of this lens, with VC (vibration compensation, aka image stabilization)



This has always been an excellent lens, well regarded by most photographers, so it will be interesting to see how the version with VC does.



See it listed here on Amazon as:

Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon Digital SLR Cameras

Customer Buzz
 "Decent lens but some quirks..." 2009-12-15
By Douglas D. Love (CA USA)
OK, I wanted a 17-55 mm zoom to complement my Sigma 35-300 zoom for my Canon Rebel XSi. After trying both the Sigma 18-55 mm f2.8 and this lens I chose the Tamron. While it is not quite as sharp as I like (Sigma has soft focus issues too) I could not justify the price of a Canon L series lens. This lens has met my expectations. It is reasonably fast. The autofocus is a bit noisy but not overly so and it allows me to have a lens that is an effective 28-88 mm zoom when factoring in the 1.6 crop factor for the APS-C sensor in the Rebel. There seems to be a bit of distortion when shooting at 17 mm at f2.8 but it is not extreme. Is it as fast and as tack sharp as a Canon L? No, but for the price it is a very good lens. The only complaint that I have with it is that it zooms in the opposite direction from Canon and Sigma lenses. For the price, I am happy and now I have a lens that allows me to shoot in low light without a flash in most conditions.




Images Product

Buy Tamron AF 17-50mm F/2.8 XR Di-II LD SP ZL Aspherical (IF) Zoom Lens for Canon Digital SLR Cameras Now
Buy Tamron AF 17-50mm F/2.8 XR Di-II LD SP ZL Aspherical (IF) Zoom Lens for Canon Digital SLR Cameras |
Cheap Tamron AF 17-50mm F/2.8 XR Di-II LD SP ZL Aspherical (IF) Zoom Lens for Canon Digital SLR Cameras | Low Price Tamron AF 17-50mm F/2.8 XR Di-II LD SP ZL Aspherical (IF) Zoom Lens for Canon Digital SLR Cameras | Best Tamron AF 17-50mm F/2.8 XR Di-II LD SP ZL Aspherical (IF) Zoom Lens for Canon Digital SLR Cameras | Order Tamron AF 17-50mm F/2.8 XR Di-II LD SP ZL Aspherical (IF) Zoom Lens for Canon Digital SLR Cameras | Good Tamron AF 17-50mm F/2.8 XR Di-II LD SP ZL Aspherical (IF) Zoom Lens for Canon Digital SLR Cameras | Lowest Tamron AF 17-50mm F/2.8 XR Di-II LD SP ZL Aspherical (IF) Zoom Lens for Canon Digital SLR Cameras | Save Tamron AF 17-50mm F/2.8 XR Di-II LD SP ZL Aspherical (IF) Zoom Lens for Canon Digital SLR Cameras | Discount Tamron AF 17-50mm F/2.8 XR Di-II LD SP ZL Aspherical (IF) Zoom Lens for Canon Digital SLR Cameras | Purchase Tamron AF 17-50mm F/2.8 XR Di-II LD SP ZL Aspherical (IF) Zoom Lens for Canon Digital SLR Cameras | Shop Tamron AF 17-50mm F/2.8 XR Di-II LD SP ZL Aspherical (IF) Zoom Lens for Canon Digital SLR Cameras | Buying Tamron AF 17-50mm F/2.8 XR Di-II LD SP ZL Aspherical (IF) Zoom Lens for Canon Digital SLR Cameras | Where Tamron AF 17-50mm F/2.8 XR Di-II LD SP ZL Aspherical (IF) Zoom Lens for Canon Digital SLR Cameras