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Tamron AF 17-50mm F/2.8 XR Di-II LD SP ZL Aspherical (IF) Zoom Lens for Konica Minolta and Sony Digital SLR Cameras
Price: Too low to display (Add To Cart To See Your Price)
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Availability: Usually ships in 24 hours
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| Sony / Minolta -compatible lens designed specifically for digital SLR's |
| 17-50mm focal range equivalent to 26-78mm in 35mm format |
| Maximum aperture of f2.8 |
| Filter diameter of 67mm |
| Minimum focus distance of 0.27 meters over entire zoom range |
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Accessories
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Customers Reviews
2010-02-21
Very sharp, but some problems
I bought a Tamron 17-50mm lens from Amazon last week for use on a Sony A200 and it arrived promptly in the mail, intact, though minimally cushioned in a small box. I put the lens through a series of tests around the yard, checking accuracy of auto focus, better aperture settings and resolution across the images.
The lens is very sharp--and even at the wider focal lengths, holds considerable resolution of the horizon at infinity right to the image margins. With the exception of the widest 17mm focal length, which had noticable corner softness (and extreme distortion) in forground elements (mostly fixed with apertures around F11), the lens produced sharp resolution right to the corners through the whole zoom range. There is very noticable distortion at 17mm, the distortion quickly diminishing at even slightly longer focal lenths on through the whole zoom range. I used mostly F8 for all the test shots.
The lens exhibits enough chromatic aberration right up through 24mm that not all of it can be removed with post processing. Between 17mm and 24mm, there is (with my copy of this lens) an excessive, odd chromatic stain, like a green tinted halo spreading well out beyond sharp or vertical edges, along with some ghosting of edges where light and dark meet--mostly evident on the left 1/3rd of the image frame. The green tint visible on the left side of images was wider than I've seen in any other lens and more substantial--and beyond repair. There is also a noticable greenish shift in image color toward both margins of a photograph, especially on the left side. This seemed consistent through most of the test shots, though it took me a while to notice it. This is not a characteristic of the camera, since another lens (a Sigma 24-60mm EX that also shows some similar, though less, chromatic tinting) does not produce any color shift at the image edges.
The Tamron 17-50mm is remarkably sharp and the auto focus is consistently accurate. It should be noted that the lens focus ring markings on my copy are not at all accurate through the entire zoom range for finding infinity focus--so auto focus accuracy is important. My disappointment with this lens is that the chromatic halos produced on the left side of the image at wider focal lengths are large enough to appear in large prints. There does seem to be a greenish shift in color toward the left and right margins of the images shot at the wider focal lengths (17-24mm). Guessing my purchase is just a less than perfect copy of the lens and I'm returning it.
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2009-06-02
Excellent lens for my Sony a300.
I've been using this lens for a couple of weeks now and am very impressed with its quality. I have used it with my Sony Alpha a300 with no issues. I'll compare it to the kit lens (SAL 18-70) that it replaced as that is the only other wide zoom I've used myself.
Pros:
-The Tamron is heavier and more sturdy than the Sony lens.
-It has better sharpness throughout the frame, but especially in the corners; it's slightly soft at f2.8 (though still better than the kit lens) and gets sharper as you stop it down.
-Using it for indoor or nighttime shooting is great compared to the kit lens.
-The aperture is 2.8 throughout the zoom range, meaning that you don't loose light when you zoom in towards 50mm.
-The macro works decently well, especially with the narrow depth of field you get with a big aperture.
Cons:
-It doesn't go to 70mm like the kit lens, but I checked over my existing photos and barely used anything past 50mm anyways, plus you get 17mm vs. 18mm on the wide end.
-Weight takes a little getting used to, but in a good way.
-Not cheap, but not too expensive compared to similar lenses.
-Slight distortion on the wide (17mm) end, though again, it's not as bad as the kit lens and you don't really notice.
I would definitely buy this lens again and would recommend it to a friend. Definitely a very good and worthwhile upgrade to the SAL 18-70 kit lens.
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2009-04-19
Great lens+A700=Excellent Photos
This lens is an excellent lens. I bought it when I had my a100, and saw subtle changes in image quality.(al00 had a lot to be desired) After using it on my a700, which has an improved focusing system and the "Exmor" CMOS sensor, I am amazed at the quality I've been able to get. It took me a while to get used to how quick the focusing was; I would press the shutter half way and often times snap the the picture by mistake. Great lens.
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2009-01-06
perfect wide-short zoom
I'm very satisfied with this lens that has replaced the 18-70mm kit lens. F/2.8 is good enough for indoors at available light, so I use it a lot for casual family portraits. Then, when I go out I find its wide angle (25mm equivalent) to be very versatile for cityscape or street photography (I can even shoot from my chest, without looking through the viewfinder, at 17mm, for candids and stolen portraits). The best is that is not an expensive lens. For my style of photography, I don't find much need to change lenses. Also, it's a sharp lens to go with my A700. No complains.
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2008-11-09
Great Lens
This lens is a fast and sharp lens that really produces sharp pictures. It does a great job focusing in all levels of light. I'm using it on the Sony Alpha A700. My main reason for this purchase was for the lighting situations and have not been disappointed at all. While it has a zoom lock, I have not had to use it due to the firmness of the zoom ring, but its not so firm that you can't easily adjust the zoom.
I would recommend this for anyone who wants to step up from the kit lens but don't want to (or can) spend the big bucks of the top end lenses.
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Product Details
Batteries Included:
Binding: Electronics
Brand: Tamron
Color:
EAN: 0725211167020
Floppy Disk Drive Description:
Has Red Eye Reduction:
Is Autographed: 0
Is Memorabilia: 0
Label: Tamron
Legal Disclaimer:
Manufacturer: Tamron
Model: AF016M-700
Publisher: Tamron
Release Date: 2006-03-08
Special Features:
Studio: Tamron
System Memory Size: |
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