Flange removal on ZM C Sonnar

[noimmunity]

Is removal and replacement of the flange on the ZM C Sonnar 50/1.5 a DIY job for the unskilled? (It's about coding the flange for the M8).

 

[brbo]

I don't know, but it looks that this should be just a matter of unscrewing 4 screws and replacing the flange.

Did you find some replacement flanges with a groove for ZM lenses?

 

[noimmunity]

Unscrewing and removal is a cinch. The real problem comes with refitting, as in many lenses the screws also hold the helicoid. But with some lenses, it can be quite simple, as I discovered with the CV 35/1.2 V1 and the ZM 28.

I'm not planning to replace the flange with a new one, simply to have pits for 6-bit coding to be milled in the most economical way possible.

I am aware of several DIY options, including the use of a dremel, but if I could easily remover and refit the flange myself, I would prefer to have the pits milled by John Milich in the US.

 

[horosu]

Just remove the screws and code. Then there is only one position in which you can fit all of them back, so you should have no problem.

Cheers, Horea