r u guys using it on crop or full frame bodies?
I read from reviews that the tamron 28-75 focuses really slowly and almost can't in low light situation, can anyone verify that?
Btw anyone here knows where to rent this lens?
It is not as accurate in lower light as the Nikon 24-70/2.8. But it will still work ok.
This is shot in low light... looks bright in the picture because I up the exposure.
Shot at 70mm F2.8 1/80s ISO5000 + 2/3 EV
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And for folks who are comparing this to the Sigma HSM, they each have their strengths and weaknesses. So really depends on what you deem more important. If the the strengths of both lenses are combined, it will be awesome, and come closer to the Nikon 24-70. For more info on the comparison of these 2 lenses, someone did a test and posted the results. You can see it here: http://www.clubsnap.com/forums/threads/928921-Comparison-of-Sigma-24-70mm-F2.8-IF-EX-DG-HSM-and-Tamron-SP-AF-28-75mm-F2.8-XR-Di-LD
ahboy168 said:If a lens can't focus well or fast enough, you don't need to consider image quality at all. U won't get the image in the first place.
Make your choice ... Just my 2c
If a lens can't focus well or fast enough, you don't need to consider image quality at all. U won't get the image in the first place.
Make your choice ... Just my 2c
U got the point. You will not get the image u want.
Thank you very much. Have been hoping someone can input their experiences on the Tamron.
Any significant difference in IQ or AF speed for BIM v NON-BIM ?
I second that tamron 28-75 is a very sharp copy. No doubt the af is slow but usually it's still able to perform well. To be frank, to some extend I think it's sharper than some prime lens. I owned sigma 50 1.4. The difference isn't really noticeable.
The difference is very noticeable for me, the Sigma is much much sharper.
liionel said:Hi DD, you use a 28-75 on your D700? BIM or NON-BIM ? Hows the AF and IQ? Seems like you got a sharp copy![]()
Yup BIM on d700. In good light and in studio no problems whatsoever. In quite low light sometimes it struggles slightly. The key is to find a point with more contrast to focus when in low light. Eg, instead of focusing on the cheek or eye, i focus at the edge of the eye socket. Overall acceptable AF performance. ESP when I use AF-C.
IQ is very good in most of the centre area when wide open. I do not care too much about the extreme edges anyway. I do not use this lens for any landscape stuff.
thank you for sharing! any issues you've found with front/back focusing? seems like quite a number of users here have encountered that problem...(which is whats deterring me away from this gem)