Once again found at a flea market. A Bellows for M42. At the bottom stuck a Revueflex AKA Praktica MTL 5B and at the front a Pentacon f1,8/50mm.
Here the setup
From left to right: Canon EOS 600D, Adapter EOS EF to M42, REVUE (most likely by Pentacon/Praktica) bellows on Manfrotto ball head and Hama tripoid, Pentacon 1,8/50mm, Step-Up adapter 49 to 52mm, Nikon SR-2 ringlight on a LD-1 inverter, light bulb.
A 220V halogen lightbulb with 150W. On the right the pump port. A beautiful coiled-coil filament.
An EProm, 27C512, photographed through the quartz window.
CCD sensor of a webcam. in the original photo you can even recognize the pixel structure…