"Alan Smithee" <m...@privacy.net> wrote in message
news:j8Gdnf4V1LY43h_U...@pipex.net...
"Homer" <h...@hotmail.com> wrote in message
news:BOsgl.2851$eE2....@newsfe08.iad...
Google isn't much help:
http://images.google.com/images?ndsp=21&q=leitz+wetzlar
Is that an optical converter/adapter to make a rangefinder lens work on
the DSLR? Either that or it's some kind of medium format or bellows lens
but others by that name seem to be rangefinders or microscopes...
--
Paul Furman
www.edgehill.net
www.baynatives.com
all google groups messages filtered due to spam
Oh, in the same folder there is another picture:
http://patternassociates.com/rico/leica/misc/ouago4.jpg
The "OUAGO" in the file name apparently refers to some kind of
teleconverter or focusing helix...
"LEITZ ADAPTER 16467/OUAGO TO USE 90MM ELMAR HEAD ON VISOFLEX"
http://elshaw.tripod.com/Visoflex/Visoflex.html
> http://patternassociates.com/rico/leica/misc/ouago4.jpg
The "Leica M-EOS" indicates a Leica M mount to Canon EF mount converter.
This would have to have optical element(s) since the flange distance of the
former is much shorter than the latter.
http://en.wikipedia.org/wiki/Lens_mount
http://en.wikipedia.org/wiki/Leica_M_mount
The "OUAGO" item looks to be converting Leica M39 screw mount to some
bayonet with focusing, and the item on the left looks to be another
focuser.
What is the context, Alan?
The last link explains the Visoflex SLR adaptation of some sort,
for Leica lenses (roughly translated):
http://elshaw.tripod.com/Visoflex/Visoflex.html
So this is apparently two glass 'teleconverters' attached to a pre-leica
lens to make them focus on a 35mm DSLR?
--
knows almost nothing about Leica lenses
I doubt that the Leica Visoflex to Canon EOS adapter has any optical
elements in it.
Leica produced special long register distance lenses which could only be
focused via the use of a Visoflex on a Leica RF camera.
The Visoflex is a reflex housing which attaches to the front of a Leica
RF camera (there were versions for both M39 and M bayonet) and turns it
into a clunky SLR camera.
The registration (mount to film plane) distance for the Visoflex is much
greater than the registration distance for EOS.
So the lens ought to mount without any adapters - or rather with some
sort of very slim adapter, right? I would try just holding it up to the
mount & moving in & out to see. The Leica to Canon adapter has extra
glass in it but the lens is designed to not need that (albeit for a
different model).
Well, yes, I suppose. In the off chance that any members of the group are too
young to remember the ubiquity of the Leica, "Ernst Leitz" was the company
that made the lens, and Wetzlar was the city in Germany where it was located.
: Its attached to the camera with a Leica to Nikon adaptor.
Really? Then why does the camera say "Canon"?
Bob
90 Elmar f4 looks like a good idea, just the lens head on an adaptor,
which is also Leitz. Old Tessar design lens, would expect the newer
Canon 85s to be better. Leitz 90 f2.8s were there best 90s.
Tom
Because the Viso lenses have a long registration distance, that should work.
If the Leica RF lens which you have has the lens elements in a group
which can unscrew from the barrel, then this unit can be used with the
appropriate Visoflex adapter [guess what: a different one for almost
each lens. Did Leica would try to gouge it's users? ;-)] on a Visoflex
or via a metal ring adapter on almost any SLR camera.
I suspect that the Leica to SLR adapters with optical elements are
intended for using M39 or M lenses straight on an SLR camera, it should
have something like "Leica M to EOS" or "M39 to EOS" stamped on it's
barrel somewhere.