Kenko DG Extension Tube Set for Minolta/Sony AF brand_Robot there's a pretty decent chance

there's a pretty decent chance that the mark has existed since this lens left the factory

The lenses are technically interchangeable

collapsing to not much more than a foot long

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

Kenko DG Extension Tube Set for Minolta/Sony AF brand_Robot there's a pretty decent chanceA 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.