http://www.reduser.net/forum/showthread.php?45792-Canon-users-avoid-the-135mm-f2-0-EF-L-Series-USM-lens
[quot]Hi all. . .
I bought this lens, not once, but twice. Both were identical with respect to the issue I was having: The image shifts markedly side-to-side as you pull focus back and forth. I mean, it's really obvious and renders the lens unusable for cine use.
Thinking I really wanted to buy this lens due to its focal length and bokeh (which is pretty glorious), I did. But the image shift issue really kept me from using it much, so I sent it in to Canon service to see if they could make it any better. Alas, they could not. It is a clear design flaw of some sort.
That lens is now going out on Ebay.
I strongly recommend you avoid this lens. Interestingly, the 200mm f2.8 L-Series USM and the 100mm macro L-Series f2.8 USM have zero image shift issues. They are both superb lenses in just about all respects.[/quot]
кто то сталкивался с проблемой фокус-шифта?
серийник у 135-ки - шестизначный. как определить дату выпуска?