jupiter-12

[geotrupede]

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anyone on m11?

does it fit?

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[lucerne]

Short Answer is yes.

You will need an adaptor.  The Jupiter lens is an M39 screw fit.  
Do a search for Jupiter 12 to read reviews and see the full specification.

[geotrupede]

short answer indeed. do you have it, have you tried, should I believe you?

I have M9 and that is ok, but same geometry in the camera for the M11, u sure?

[UliWer]

The Jupiter 12 is a copy of the pre-war version of the Zeiss Biogon 1:2.8/35mm. The Biogon was designed for the Zeiss Ikon Contax, which had a flange to film distance differing from the Leica. The Jupiter was mostly used for the Kiev which was a Soviet version of the Contax. So it is very probable that they didn't adapt the Jupiter for the Leica flange to film distance and focus will not be exact if you use it on the Leica.

 

 

[geotrupede]

yeah I have one with adapter and on m9 is ok, and i have seen on the M240 on youtube. apparently one could use a spacer to improve focusing as the rangefinder calibration is not compliant with leicas but error can be adjusted across the range of distances...

but not sure on the M11. what i am unsure is the shutter position, and not sure how to measure the various elements (as I do not have anything apart a ruler or paper cutout)

some evidence based info would be much appreciated  😉

thanks

G>

 

PS just to make clear, focus not an issue as can use the viso or simply f16, but the question is more: will the rear element clash with the shutter?

Edited October 18, 2022 by geotrupede

[Ule]

My M11 is still fine after an afternoon with the jupiter 12. Nothing clashes. I kept involuntarily opening the aperture of the lens, I wasn‘t too pleased with the experience. And there was nothing spectacular about the images, lens character-wise.