HD Pentax-DA 20-40mm f2.8-4 ED Limited DC WR  type_Digital Cameras not the later AI-S version

not the later AI-S version

The Rolleivision 66AV is a high quality projector for 6x6cm medium format slides

But it's functional

illuminance units

The Olympus ECG-4 is a metal handgrip for the Olympus Pen-F digital camera

HD Pentax-DA 20-40mm f2.8-4 ED Limited DC WR &nbsptype_Digital Cameras not the later AI-S versionThe HD Pentax DA 20 40mm f2. 8 4 ED Limited DC WR is a compact zoom lens for APS C format Pentax DSLR cameras. The zoom range might seem unusual, but it's a pretty decent wide to normal spread, and there's a non zero probability that it's an obscure homage to the Pentax 110 20 40mm zoom. The zoom ring riffs on Takumar styling, too, so someone at Pentax HQ was probably feeling nostalgic. Clean glass, good function, light cosmetic paint and finish wear.