I don't think I have this problem, but does it occur if one changes
the zoom without refocusing, or does it happen even if one refocuses
after zooming the lens? None of my lenses, all Canon, one L series,
seem to have the ability to change the "back focus." (As described in
http://www.mediacollege.com/video/camera/howto/back-focus.html, for example.)
Roger
The "back focus problem" is complained about on the web a lot. Off
the
web, there doesn't seem to be much validation of a "back focus
problem."
I've seen it demonstrated very effectively - now where is that url?
2) One real problem is that the focusing sensor is slightly larger
than the
focusing point indicator on the screen. As a result, it is
important to be
more careful with the focusing point.
A minor problem: thankfully not one I get with the EOS 1n. Having got
used the the focussing sensor of a film camera "doing what it says on
the box" I would be a bit miffed to find that the next-generation
technology was not up to scratch!!!!
>The problem is due in part to the fact that Canon does not consider
the 10D
>is a "professional" camera (it was never advertised as such).
Professionals are just people who sell their talents: the same
talents. often, others are happy to provide for free ;o)
Of course, it wasn't always true: there used to be "the professions"
where you needed years of training before you would call yourself one.
Today there are pros stood on most street corners ;o)
I think the mistake people have is in the misapprehension that AF
stands for auto-focus: its auto-cratic!
Bob
PS: Jeff, your confessions have weakend my appreciation of your work.
Never again will I be impressed by your timing, selection of viewpoint
etc etc. I'll just guess it was made in the computer.
--
_______________________________________
R. Eichhorn
Professor Emeritus
University of Houston
Fax: 713-743-4503
Tel: 713-743-4383
email: eichhorn@xxxxxx
