Which lenses can't I mount on my bessa?

[potomo]

There are A LOT of lenses at very good prices for Bessa cameras, but not all fit on them!! What do you think about writing a list of problem-lenses?
For example: what about Canon Serenar lenses?

I can start with a very short list:

ABSOLUTELY DOESN'T FIT:

* J12 35mm f 2.8
* Russar 20mm f 5.6

PROBLEM WHEN COLLAPSED:

* 50 mm elmar f 3.5 and russian copy

POSSIBLE PROBLEMS:

* A lot of russian lenses has problem with leica and voigtlander rangefinder coupling standard

 

[Spyderman]

Many J-12 can be mounted when focussed to minimum focus distance. Some can be even focussed to something like 3m or maybe even 10m...
IMHO it's rather a variation in the body baffles than in the J-12 lenses...

But it's a good idea - this kind of list...

 

[QUAsit]

Orion-15 fits Bessa-R - latest update from Russian soviet lenses and cams user.

J-12 FITS Bessa-R with infinity focus if this is very late Lytkarino (LZOS) made black finishing lens.

White J-12 (KMZ) and early LZOS made will stand 20m distance only w/o contact with outer shutter.

Presise rangfinder coupling with Soviet lenses is a lottery.