"Cian S. Perez" wrote:
>
> FYI - I had my Sigma 90/2.8 Macro upgraded recently to
> be fully compatible with the EOS30. A rather painless
> process. It took about two weeks.
Do you know by any chance if the upgrade preserves compatibility
with older cameras? I also own a Sigma 90/2.8 Macro which works
flawlessly with an EOS 100 and 1N, but has some (minor) problems
with an EOS 5. I wouldn't want to "upgrade" it to be fully compatible
with the 5 and newer bodies only to find out it isn't compatible with
the 100 and/or 1N afterwards anymore.
Thomas Bantel
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