The Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF) is a good value fast standard zoom lens for APS-C cameras, offering a constant aperture of F2.8 and covering an effective focal length range of 26-75mm. Optical construction comprises 16 elements in 13 groups, and at its minimum focus distance the 17-50mm gives a maximum reproduction ratio of 1:4.5 - not 'true' macro, but usefully close nonetheless. Tamron also makes a newer image-stabilised version of this lens for Canon and Nikon cameras.
Tamron SP AF17-50mm F/2.8 Di II LD Aspherical (IF) Lens
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- 17-50mm focal length
- 25.5-75mm equivalent focal length on APS-C cameras, 27.2-80mm equivalent focal length on Canon APS-C cameras
- F2.8 constant maximum aperture; F32 minimum
- Micromotor-type AF motor without full-time manual focusing
- 67mm filters
- 0.27m/10.63" minimum focus
- Available in Canon EF, Pentax KAF, Sony Alpha, Nikon F (DX) mounts
|Lens type||Zoom lens|
|Max Format size||APS-C / DX|
|Focal length||17–50 mm|
|Lens mount||Canon EF, Pentax KAF, Sony Alpha, Nikon F (DX)|
|Number of diaphragm blades||7|
|Aperture notes||circular aperture|
|Special elements / coatings||2 hybrid aspherical elements 1 LD (Low Dispersion) glass element 1 XR (Extra Refractive) element|
|Minimum focus||0.27 m (10.63″)|
|Full time manual||Unknown|
|Weight||430 g (0.95 lb)|
|Diameter||74 mm (2.91″)|
|Length||82 mm (3.22″)|
|Zoom method||Rotary (extending)|
|Filter thread||67 mm|
|Hood product code||flower shaped hood|
Excellent Bang for Buck
When I bought this lense, I was still considering buying other lenses to compliment it, but soon realised that short of buying exotic primes or ultra-wide angle lenses, this lense covered almost all my photography needs.It is a very good alternative to the 17-55 lenses in Nikon and Canon's repertoire at about a third of the price, and it produces stunning results for the price. It's very sharp across the frame when stopped down to about f/5.6 but even at f2.8 it produces very sharp images in ...
I say this is the sharpest zoom, and probably the sharpest LENS I have ever tested, at least when at f4 or lower. Contrast and bokeh are nice too, even at 2.8, it fits perfect with K-5, autofocus works fine and quite fast and, yes, it's noisy, but no one died so far because of this. One more thing...it costs about 40% of Sigma 17-50mm, f/2.8 Problems: Plastic body looks cheap...
Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF)
This is a solid performer with good contrast and color rendition, resolution is impressive wide open and by f4 is outstanding. Focus speed and noise are more than acceptable. The most impressive characteristic I noticed straight away, is the superb control of flare, or almost totally absent at wider apertures when shooting into the sun. This is quite exceptional compared to any lenses I have used and very desirable for landscape work. Problems: I don't know if it is just my copy, but I have ...
Great Optically FF at apertures F5.6 or above at under 3 mtrs
Great Optically Problems: Quirky AF problem under 3 mtrs at F5.6 or above
Understanding Maximum Aperture by Tamron
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An example of decentering?
Hello there, this is a shot (EXIF included) from an oldish Tamron 17-50. Both right corners are horrible blurry (check the foliage) at apertures f/2.8-f/7.1. Is this a case of element decentering? Compare the left and right corners (mainly foliage)
WryCuda wrote: The subject isn't really suitable for lens testing. Nothing much seems to be in sharp focus, and the building is a bit over-exposed in one shot. Tried another lens for comparison? i'm with you on this one. A proper test subject is needed. The shots taken with the second lens look no different on my screen.....Sorry. Continue Reading
I would try something that you are certain is flat like a brick wall. You need detail in the wall to determine what is sharp. Try to make absolutely certain that the camera is exactly perpendicular to the wall. I had a lens a few years ago that developed a decentered element, a 70-300mm. The effect was very obvious on a computer screen with one side of the image somewhat blurred at shorter focal lengths lengths and almost the whole image blurred at 300mm. I was on a trip to Hawaii to photograph humpback whales and came back with 600 ruined images, many of them of whale breaches. Here is a crop from a typical shot from that trip. Notice the unusual blurring pattern over the whale and the surrounding sea. Continue Reading
No. This is simply a case of not being in focus. Remember that at f2.8 you will have a narrow depth of field. The shot is not very sharp anywhere,so it is difficult to see what you focused on. I would guess that the foliage was not the point of focus, rendering it out of focus in the shot. Continue Reading
I have a tamron 17-50 and the Nikon D7100. I know that the D7100 is fully weather resistant, more than the D800, but will that pair hold on extreme weather? I'm not sure how durable is the 17-50, so will heavy rain or snow ruin it?
Bharel wrote: I have a tamron 17-50 and the Nikon D7100. I know that the D7100 is fully weather resistant, more than the D800, but will that pair hold on extreme weather? I'm not sure how durable is the 17-50, so will heavy rain or snow ruin it? I'm not familiar w/ Nikon, but even assuming bother body and lens are weather sealed, they aren't for taking pictures in extreme weather/strom or even rain. The fully rugged body like D4 or 1D series pn Canon are ment to take more extreme temperature, still not rain. At a minimum I would get a rain cover, they are expensive usually less than $100. Even plastic bag will protect your gear better than shooting unprotected in the rain. Generally when the manufacturor said weatherproof it just mean it will take some sprinkling. If you felt that you have to take cover yourself that is pretty much mean your gear need extra protection also. Continue Reading
As far as I know, the Tammy is not weather sealed.... so it does not matter a whole lot if the d7100 is. Continue Reading
A-Mount Tamron 17-50 or Sigma 17-70, which 1 is a good deal for my A58?
I need a replacement of kit lens for my A58 and I found Tamron A16 SP AF 17-50 mm F/2.8 Di II LD Aspherical (IF) which is not " XR " at around $375, where as Sigma 17-70 is around $500 and might not available in my country, I may have to pay 20 to 50 bucks extra for shipping, total $550. (1) Which one is a better deal? (2) Also what is the difference between XR and non XR tamrom lenses? I know they use VC for image stabilization.
The Tamron is a very good lens and is a fixed f2.8 at all focal lengths. It is pretty sharp and balanced perfectly on my A65 and should be the same on your A58. I believe "XR" refers to "ED" glass or something similar to that. The focus on the Tamron is slower than the Sigma and a little more noisier. This might be an issue for videos. Also, the Sigma has a slightly longer range and could be more suitable for you. I was able to get good portraits with the Tamron at 70/f2.8. Vikas Rana wrote: I need a replacement of kit lens for my A58 and I found Tamron A16 SP AF 17-50 mm F/2.8 Di II LD Aspherical (IF) which is not " XR " at around $375, where as Sigma 17-70 is around $500 and might not available in my country, I may have to pay 20 to 50 bucks extra for shipping, total $550. (1) Which one is a better deal? (2) Also what is the difference between XR and non XR tamrom lenses? I know they use VC for image stabilization. Continue Reading
I just found :- XR - extra refractive index on tamron I am looking for:- (1) Great Image Quality (2) Wide Aperture (only 2.8 is in my budget) (3) Replacement for my kit lens I don't care for A/F noise or speed, but need AF Regards Continue Reading
I could not be happier with my Sigma 17-70 "c" The old version was pretty good. But they have really improved the lens this time. Aand I like the clean look and compact size.. I would compare the bench tests.. on both http://slrgear.com/reviews/showproduct.php/product/1297/cat/23 http://slrgear.com/reviews/showproduct.php/product/1560/cat/31 The Sigma seems to be consistent and sharp across the range even wide open. No Crazy corners where at one range the corners go to pot... DPR hits if for soft edges that don't sharpen up with Fstop increases at 17mm But its soft edges are better than a lot of lenses improved edges.. I wrote my review of the lens after a couple of days here is my thoughts related to Sony use and a link to the DPR USER review I did for the lens in general. http://www.dpreview.com/forums/post/52277816 Continue Reading
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