RAFCamera M65x1F-Pentax 645 adapter brand_Minolta The very large camera mounting

The very large camera mounting platform (about 10x17cm) makes this head well suited to use with large format cameras that need a bit of extra base support

The Konica Auto S3 is a compact fixed-lens rangefinder camera with an excellent 38mm f1

This is a high-end Micro Four Thirds camera with a 20mp sensor

with some cosmetic wear which does not affect function

It provides automatic function on select cameras (check your camera's instructions) and manual control for the rest- a versatile

RAFCamera M65x1F-Pentax 645 adapter brand_Minolta The very large camera mountingAccording to RAFCamera, the M65x1F Pentax 645 adapter ring is designed to mount "Chinese focusing helicoids" on a Pentax 645, useful for attaching projector lenses. RAFcamera's listing with more information is here. Please note that helicoids are sold separately.