>>2633471Going full Sugar. Next step is buying a RB67.
Well, I ordered an adapter ring that fit nothing, except the EF mount.
Nikon AF-D lenses
>doesn't fitMamiya E
>doesn't fitPentax PK
>doesn't fit, but could if I file down the bayonet. It's almost it!Any ideas of what mount is it? No marking whatsoever on it nor on the package.