[EMAIL PROTECTED] writes:
 > 
 > My old Rebel class body had a habit of "follow-focussing". It would focus
 > where a subject had BEEN, not where it was GOING. While I could (and did)
 > pre-focus manually, shots of erratically moving subjects (e.g. children)
 > at 1fps were /always/ out of focus :-(
 > 
 > So, is this new-fangled "Predictive AF" only a gimmick?

I thought I had that on my 1000F...  I will verify.  But IIRC, it's only in
some modes like the ACTION PIC mode.  But anyway, I noticed sometimes that
it wasn't very accurate (pretty much like what you described ;-).

 > Which EOS body was first to have Predictive AF?
 > Does the EOS 10/10s (1990) have Predictive AF?
 > Can you turn it on and off, like a custom function?
 > When do users select Predictive AF over one-shot AF?

I have it on my 50E.  You can kind of turn it on and of by choosing the
appropriate AF mode, i.e. it's off in One-Shot mode, but on in the 2
others that can follow a moving subject.

Hope this helps.

Fred

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