So, I read this article (http://petapixel.com/2014/06/07/glass-path-using-adapters-may-hurt-image-quality/
), and it makes me wonder a few things:
1. How correct is it? To me, it makes sense and I honestly could see how it would affect things.
2. How many third party companies (i.e. Sigma, Samyang, Voigtlander, etc) refactor their lenses for the different mounts/optical glass? I at one point was thinking of just buying a Samyang/Bower lens in F-mount and adapting it to M43 with a dumb adapter, but if their lenses are actually made different for each mount, it would make sense to buy it in the mount of the camera I actually have.
3. In the case of M43, does Olympus, Panasonic and Black Magic all use the same optical glass thickness? (i.e. is it part of the M43 spec?)