70-200/4L Why does Canon still sell this lemon?

Started Nov 15, 2004 | Discussions thread
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Gammel_Dansk
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70-200/4L Why does Canon still sell this lemon?
Nov 15, 2004

Only recently I entered the Canon world by buying a 20d + 17-40/4L lens. I did this together with the firm decision to immediately add a 70-200/4L for its performance together with a pleasant weight.

Now after reading through the available information I find it more and more questionable if the 70-200/4 is a useful lens at all. A lot of people report that the lens has a backfocus problem at lower focal lengths. This problem seems to be as well very common and difficult to fix. See here for details: http://forums.dpreview.com/forums/read.asp?forum=1029&message=8837664

Others report that the lens has a general problem with digital cameras. See here for details: http://emedia.leeward.hawaii.edu/frary/canon_ef70-200usm.htm

Do you agree that this lens is a lemon at least for digital? Will I avoid these problems by choosing a 70-200/2.8 instead?

(I apologize for my poor english)

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