> Earlier this year I purchased a manual focus Zenitar fisheye lens
with M42
> mount and a M42 to EOS adapter. Everything works fine accept I have
not
> found a way to keep that lens stopped down. I searched the archives
and
> didnt see an answer, even thought there has been much dicussion
about the
> Zenitar fisheye.
>
> There is a pin in the back that stops the lens down, but of course
my EOS 3
> does not have a way to activate the pin. I had considered wedging
the pin
> in place or maybe gluing it in place. But I thought I'd check to
see if
> anyone had a better work around.
>
That is a problem indeed.
If you get the pin down the aperture can usually still be opened with
the aperture ring.
I don't think there is anyway to get the aperture to stop down
automatically.
I think SRB do an adapter that holds the pin down.
Bob
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