Manuel Magrinho wrote:
> I'd like to have your opinion on this matter:
> My cameras (EOS 5 and EOS 50E) stopped auto-focusing
> with this lens (sigma 70-200). I tried other lenses
> and they work fine (both bodys and glass). The problem
> is only with this zoom. The first time I attached it
> to 50E the camera showed MF on the display as if there
> was no lens attached, the switch on the zoom was for
> AF, I changed to MF and again to AF and the body
> recognized the lens but still refuses to autofocus,
> tried another body and although I get no MF on the
> display and have AF on zoom switch I still can't get
> auto-focus.
> Problem:
> Dirty Zoom contacts?
> Switch AF/MF on the zoom "broken"?
> Have no ideia and need to work (I have a EF 75-300 for
> backup but its no the same).
--------------------------------------------
Manuel,
Have you tried the lens on any another body? Like an EOS3? I know the Sigma
HSM lenses DO NOT need to be upgraded like non-HSM for use with certain
Canon EOS cameras. If it is an older Sigma it may not work with your 50e
unless you have it upgraded at Sigma but it should work with the EOS5.
Peter K
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