Doug,
AF-S mode only.
Jack
--- David Dixon <[EMAIL PROTECTED]> wrote:
> Doug Franklin wrote:
>
> >On Wed, 15 Jun 2005 22:10:36 +0100, David Dixon
> wrote:
> >
> >> can't check if this actually works at the moment,
> but I think
> >>you can do this on certain AF bodies [...]
> >>
> >>
> >I don't know about any others, but it works just
> fine on my ZX-5 and
> >MZ-S.
> >
> >>You need a custom electronic cable release -
> >>
> >>
> >You don't need one if you're willing to stand there
> and hold the
> >shutter release down. I've done it while hand
> holding.
> >
> >>...] you'll only take a photo if
> >>the subject comes into focus.
> >>
> >>
> >Well, you'll get a photo one "lock time" after the
> subject comes into
> >focus. It does take some (small) amount of time
> for the logic to
> >recognize the "in focus" condition, and for the
> mirror to move out of
> >the way. If your subject is moving quickly, and
> the DOF is shallow,
> >the part of the photo you expected to be in focus
> might not be the part
> >that's in focus when the shutter slit finally
> starts moving.
> >
> >>or this to work, you'll need an AF lens mounted
> normally, and focus
> >>mode set to AF-S.
> >>
> >>
> >Nope, you need an MF lens mounted normally. I
> don't recall whether it
> >requires AF-S or works in both AF-S and AF-C modes.
> It's been a while
> >since I did it.
> >
> >TTYL, DougF KG4LMZ
> >
> >
> >
> Doug, you misunderstand me - Collin specifically
> asked about trap focus
> with AF lenses. As you describe, trap focus with MF
> lenses is
> straightforward, but for AF lenses my technique
> stands.
>
> David
>
>
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