How is the CA (purple fringing)on this lens?
876784
It's actually controlled well. At it's widest aperture you'll see it. This is a known issue, like on the Zeiss. But it's something that can be fixed in Adobe. The lens is a good deal and worth it.
876785
I'd like to tell you it's not there but it is, however it's an easy fix in Lightroom. Other than that it's an awesome lens for the price.
1015519
Hello Brian, in the years I have used this lens all the time and I can report to you that I have never had any problems with this excellent lens. It is sharp and the contrast and color are beautiful. Focusing has always been crystal clear. Also focus speed would be a function of the camera body which has the drive engine for autofocusing. Hope this helps, Paul
1730225
Hello Victoria. I'm sorry I am unable ot answer your question. i only purchased this lens as a present. i wish you good luck.--Hanson
788436
No, I love this lens. I havent noticed excessive vignetting, and it works fine in continuous auto-focus. I am shooting with a Nikon D300S and have been using the lens for a couple of months.
1300383
Hi bruno, I mentioned a rather stiff zoom ring starting around 100mm and no it didn't get better. I did exchange it and the new copy was better but still a bit stiff, the low light characteristics on the replacement improved just a little bit . This lens for me pretty much spends it's time in a drawer unless I'm going somewhere outside that requires going light and the photo's taken aren't important. It's rarely on my camera.
1205535
I have had fun using this lens. I adjust for the f6.3 using shutter speed and iso. I do not use it at night. But on a recent vacation I was able to take good pix of distant features in dim to overcast to bright light. Use a tripod. After all, it is less than$200, and takes little extra space in the camera bag. It is worth having.
740233
The light is spread onto 4x the surface. That is why autofocus is difficult. Sharpness and contrast suffer with a T/C. I have a Sigma 170/500. Results are ok if not to picky.
1041292
I agree with the 35 F1.4 response. It is a very sharp lens and with the sale, it's priced great. WELL worth the $.
487012
It may also be the case that you are looking at used or refurbished lenses. I bought one used, it is like new and an excellent lens for low price. Best regards
1385530
I would presume that this is normal, as my 14-140 OIS switch is also the same way. Other than that, I think it is a terrific lens.
776894
Robert - Only had the lens for a couple of hours - it had quite a bit of distortion at 18mm.. plus the one I received was a "grey" market one.. no us warranty.. and I was not comfortable with that.. so, I returned it. Never used it in the field.. hope this helps..
1858255
I would say yes even at f-stops far slower that 1.4. This thing is cheap. You will get an uneven purple cast throughout your exposure. Put it this way, if you can afford a lens that stops down to a 1.4, spend some money on something better. Singh-Ray would be the best but the Tiffen (what I have) works very well for the price.
1800886
I've had mine for a few years and haven't really had issues with it. I personally think it is a gorgeous lens.
1001596
I own OMD-EM5, previously Pana GF-1. As some say there is a purple flair on sunlight. I don't see it as a real issue. The combination is really good and the lens is pretty amazing
1519725
Love the lens. No fisheye effects. No fringing noticed. Sharp colors. Pricey ghough
1609778
Good timing on your question, because DPReview.com JUST posted their review last week on that lens:http://www.dpreview.com/lensreviews/tamron_70-200_2p8_c16/Optically it appears to be quite good. AF is slow and noisy, but for 694 bucks at Amazon you can't beat the price if budget is a concern.
1783773
I have it for my dx frame and don't see any vignetting. I would imagine it would do that in you fx frame. But honesty its a fun lens.