Pentax K1000 video This is an Acratech clamp

This is an Acratech clamp for Arca-type plates

but not enough to affect viewing (worth noting that these never had the world's brightest viewfinder to begin with

and possibly others

Minolta recommends using this filter on lenses with focal lengths of 100mm or below

Pentax K1000 video This is an Acratech clampThe Pentax K1000 is a classic mechanical 35mm SLR camera with shutter speeds from 1s to 1 1000s, an easy to read light meter, and that's it. A nice camera, and fun to use. Compatible with Pentax K mount lenses (sold separately). In excellent condition, with minor cosmetic wear, accurate speeds & metering, and new light seals. Lens is sold separately.