Kenko DG Extension Tube Set for Minolta/Sony AF brand_Robot About as close to pocketable

About as close to pocketable as medium format gets

It should be noted that 70mm film is not something you can just walk into a store and buy

with a light touch of delamination at the edge of a front-mid group element

but this is inarguably a heavy-duty tool for anyone who needs what it offers

The lenses are technically interchangeable

Kenko DG Extension Tube Set for Minolta/Sony AF brand_Robot About as close to pocketableA set of three extension tubes for Minolta AF mount: 12mm, 20mm, and 36mm. These tubes have the electronic contacts necessary to maintain autofocus and autoexposure capabilities. If you're curious about dabbling in macro work, this is an inexpensive way to get started. Compatible with Minolta AF film and digital SLRs, Sony digital SLRs, and matching lenses. Not compatible with Sony mirrorless cameras.