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Canon 7, color skopar 35 2.5 compatibility
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PostPosted: Sun Aug 26, 2018 10:49 am    Post subject: Canon 7, color skopar 35 2.5 compatibility Reply with quote


I just ordered two things that I thought I had a handle on but apparently that wasn't the case. At the time of the purchase my thinking was "The Canon 7 takes Leica screw thread, this color Skopar comes in Leica screw thread".

Post-purchased I looked it up a bit more and there appears to be a number of versions and variants of the Voigtländer Color-Skopar 35/2.5 and LTM and L39/M39 might not all be the same thing.

The Skopar type in question that I purchased is one of these:

Click here to see on Ebay

Will it fit a Canon 7?

Can someone enlighten me on the possible differences of Leica screw thread (I'm aware russian lenses have a slightly different mount)?

If the things I bought don't go well together that is slightly unfortunate but it isn't the end of the world, I'll sell one of them : )

PostPosted: Sun Aug 26, 2018 12:53 pm    Post subject: Reply with quote

Voigtlander lenses are built for Leica-specification for rangefinder adjustment.

If your camera is too, then there should be no issue.

There's 2 potential issues with "M39"-lenses:
1. Some Soviet SLR-lenses have 39mm thread but much bigger registration distance, and no rangefinder-coupling. Unusable on a rangefinder, unless you use a spacer and the camera has liveview.
2. The Soviet LTM-lenses will physically fit and work (except for some versions of the Jupiter-12 / Biogon-clone), but the Soviet LTM-rangefinder-cameras (FED, Zorki, Leningrad) have a slightly different standard for the rangefinder, so focus may be off on a camera bult to Leica rangefinder-standard (unless the lens is calibrated to Leica-standard)
3. A lot of the confusion comes from the fact that some lenses, such as Jupiter 9 and Jupiter 11, have been made in both LTM and SLR M39 mount.

Hope this helps!

PostPosted: Sun Aug 26, 2018 1:31 pm    Post subject: Reply with quote

Thanks for your reply!
I'm a little wiser now.

I think the lens should fit the Canon 7 rangefinder then as the only potential misfits I've read about are russian lenses like the Jupiter 8. I was just rather confused when I saw several different models with different mounts of Skopar 35 2.5. Confused and not really sure about the relationship with the russian mount but your post has been a bit enlightening.

"SLR M39", heh : ) I suppose those are generally larger lenses.