Upload & Sell: Off
I am sure the point has already been made. But I wish Metabones would produce one SB with the expensive optics, and then employ cheaper interchangeable final mount adapters. It should be able to handle most cases where no comms/electronics are required to interface with the lens. Many who are interested in this product likely have multiple lenses that they would like to use making the purchase of several adapters very expensive.
I think it is fine the way it is, with the EF version I can already do that to get to N and R.
If somebody don't want the extra cost and alignment issues with passive adapters, they can buy the R or N version only.
It's a win-win.
no minolta SR mount though.
i can convert my 58/1.2 to canon in 5 minutes, but it will still be a pain every time i want to switch it between film and digital. also, my other rokkors are much more complicated conversion (perhaps incompatible with speedboost?). finally that ef version is an extra $200 that gives me no value. i'd love a general speedboost adapter with different mounts that could be attached (using screws to decrease alignment issues).
OTOH a cheaper generic SB without EF electronics would be useless to me since I want to use EF lenses also. So it would not be universally generic. But it would of course be nice for you who don't intend to use EF lenses to have the other option. The other question is, did anybody successfully mount a Canon converted 58/1.2 without rear glass issues?