08-05-2020, 08:52 PM
(08-05-2020, 08:11 PM)miro Wrote:(08-05-2020, 11:47 AM)Klaus Wrote: 60mm f/2.8
35mm f/2
https://www.sonyalpharumors.com/zenitar-...acro-lens/
I've to admit that I have a soft spot for Zenitars ;-)
What is public status of every mount?
As far as I know
L mount - open standard
4/3 - open stadart
FE - open standart
RF - ??? no idea
Z - ?? no idea
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Lets say I'm Sigma, Tamron , Tokina, Chinese startup or Russian optics manufacturer. Do I have access to current RF/ or Z specs? Am I equal member in such aliance? Can I influence future development of the standard?
You forgot Fuji-X mount. I think they opened it up recently to some manufacturers at least (Tokina, Viltrox), but I'm not sure whether it's publicly open.