Hasselblad A12 back lens mount_Mamiya RB or open it up to

or open it up to use it as a mid-sized backpack for larger equipment

with a crank-driven centre column

This Mamiya eyepiece magnifier slips on to a Mamiya 645 Pro or Super viewfinder and provides 2x magnification for precise focus when you need it- and flips out of the way when you don't

with minor bellows wrinkles that don’t affect function

Hasselblad A12 back lens mount_Mamiya RB or open it up toThis is a chrome Hasselblad A12 back in good working order, with some cosmetic wear, most notably a scuffed flat corner. This is cosmetic damage only the back's been film tested, as you might expect. Non matching insert, but film spacing is good.