Mamiya RB67 Professional with Mamiya-Sekor 65mm f4.5 brand_Kata In its simplest form

In its simplest form

with some cosmetic surface wear

plus knob-based focusing adjustments on front and rear

with a threaded eyepiece (for cameras like the F-1) and a slip-on adapter (for cameras like the AE-1 and similar)

Mamiya RB67 Professional with Mamiya-Sekor 65mm f4.5 brand_Kata In its simplest formThe Mamiya RB67 is a big, heavy camera no way around that. But it has a number of unique capabilities that make it worth hauling around: it shoots in the convenient 6x7 image format, which is the correct proportion to print a traditional 8x10 image without cropping; it has a tremendous built in extension, for near macro shots with nearly any lens; the rotating back lets you shoot vertical or horizontal without rotating the whole camera; and it's fully