Zeiss Sonnar Optimization

[tifat]

Hi. I gather the Nikon rangefinder mount Zeiss Cosina Sonnars can be sent to Cosina for optimization wide open. I'm in the US. What's the process to get this done? Thanks. Carl

 

[furcafe]

Good question, but I would guess that Zeiss would do the work since it is my understanding that they handle it for the ZM & other mounts.

I would shoot them a message: http://lenses.zeiss.com/photo/en_DE/service/support/technical_support.html

Some of the S mount Sonnars may be optimized for f/1.5 (I think jonmanjiro has posted that his seemed to be so), but mine, like yours apparently, appears to front-focus @ f/1.5 close-up.

Hi. I gather the Nikon rangefinder mount Zeiss Cosina Sonnars can be sent to Cosina for optimization wide open. I'm in the US. What's the process to get this done? Thanks. Carl