Minolta Maxxum AF 70-210mm f4 lens mount_Bronica RF645 Note that a higher diopter

Note that a higher diopter number means higher magnification

The Mamiya 645 1000s is a medium format film camera that shoots 6x4

with little tiny pictures all around the edge

About the size of a "normal" school backpack

25 is bigger and heavier than most 90mm lenses

Minolta Maxxum AF 70-210mm f4 lens mount_Bronica RF645 Note that a higher diopterThe Minolta Maxxum AF 70 210mm f4 is the famous "beercan", so named because it's a metal tube about the size of a tallboy. Important to note that this lens will take better pictures than an actual beer can, but it does not contain any beer, so you'll want to be sure that you choose the right tool for the job. In good cosmetic condition, with light wear; glass is clean, with minor dust. Includes hood.