Olympus E-620 with 14-42mm f3.5-5.6 brand_Sigma probably best used as a

probably best used as a tabletop tripod

Please note: these are not rechargeable batteries

clean optics (with minor dust) and excellent function

The Pentax 645Z is a digital medium format (33x44mm) camera with a 51mp sensor

4 is a compact manual-focus 50mm lens for the Nikon F mount

Olympus E-620 with 14-42mm f3.5-5.6 brand_Sigma probably best used as aJust to get it out of the way up front, the Olympus E 620 is a Four Thirds format DSLR, not a Micro Four Thirds mirrorless camera. It's compatible with Four Thirds SLR lenses, not Micro Four Thirds lenses, and it has a real optical viewfinder rather than an EVF. It's still a reasonably compact camera, though, and still packs a tilt swivel screen and an in body stabilizer. It's got a 12mp sensor, built in flash, and a pretty good live view system, too.