tifat
Member
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
Veteran
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.
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.