Vivitar 28mm 1:2 MD to EF lens mount conversion

/!\ NEEDS SOME WORK - the EF mount module I started with doesn't fit properly /!\

This is a non-destructive Minolta M/MD to Canon EF mount conversion for an old Vivitar 28mm 1:2 MC lens.

- Print with supports
- Remove original bayonet (held by 5 screws)
- Place this one instead; rotate for optimal useability and attach with original screws