Used Olympus CKX41SF Inverted Microscope (Serial # 5M03437) with 3 matching Olympus Infinity precentered phase contrast objectives and U-CTR30-2 Trinocular Head (Serial # 5M08545). It includes an Olympus UPLFLN4XPHP, a CACHN10XPHP, and an Olympus LCACHN20XPHP phase contrast Long Working Distance objective. It was serviced and has sharp, clear optics and all optical and mechanical components function properly. It has an insert with a 25mm center hole for petri dish, flasks, or slides. It includes: Two Olympus high endpoint WHB10X/20 eyepieces, stage extension plate, three position IX2-SLP phase contrast slider (allowing phase contrast or brightfield observation), Lamphouse, bulb, hex wrench, 45mm blue filter, power cord, and c-mount camera adapter. A PDF instruction manual is also provided. If you see this ad it is still available