Archived posting to the Leica Users Group, 2003/08/10

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Subject: RE: [Leica] Leica Lens to Canon EOS Adapter and Pellicle Mirror
From: "Don Dory" <dorysrus@mindspring.com>
Date: Sun, 10 Aug 2003 18:26:00 -0400

Gary,
The "mirror" in the pellicle cameras doesn't move at all.  The warning
about the rear element of the 19 striking the mirror is just that, the
rear element is in the way of the mirror.

To see if the lens would work on the pellicle cameras, set the camera on
bulb, open the back, and start to mount the lens.  You will be able to
see if it will strike the mirror.

Don
dorysrus@mindspring.com

- -----Original Message-----
From: owner-leica-users@mejac.palo-alto.ca.us
[mailto:owner-leica-users@mejac.palo-alto.ca.us] On Behalf Of Gary
Williams
Sent: Sunday, August 10, 2003 3:00 PM
To: leica-users@mejac.palo-alto.ca.us
Subject: [Leica] Leica Lens to Canon EOS Adapter and Pellicle Mirror

Novoflex warns that certain R lenses with protruding rear elements
cannot be
used on a Canon body with the EOS adapter.  Is the issue that of the
rear
element of the lens touching the mirror, or is it a matter of the mirror
striking the rear element when the shutter is released?  If the latter
is
the case, then what about the Canon bodies with pellicle mirrors like
the
Canon RT and 1N RS?

One should be able to measure the distance from the mount to the mirror
and
then compare it to the protuberance of the rear element to see if the
issue
is the element touching the mirror or the moving mirror touching the
lens.
Has anyone looked at this?  Does the Canon pellicle mirror in fact not
move
at all when the shutter is released?

Gary


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