Panasonic Lumix G X Vario PZ 45-175mm f4-5.6 ASPH Power O.I.S. lens mount_Large Format Sony calls this an "SLT"

Sony calls this an "SLT" camera rather than an SLR

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

and still framerates up to 20fps (with the electronic shutter)

The top panel control dial looks like a stray bottlecap

The Yashica ML Zoom 42-75mm f3

Panasonic Lumix G X Vario PZ 45-175mm f4-5.6 ASPH Power O.I.S. lens mount_Large Format Sony calls this an "SLT"Panasonic sure likes long lens names, but here you go: this is a Panasonic Lumix G X Vario PZ 45 175mm f4 5. 6 ASPH Power O. I. S. in excellent condition, with clean glass and good function. A compact telephoto zoom lens for Micro Four Thirds with power zoom, ideal for video use. Includes hood.