Olympus SZ4045 Microscope with two Olympus GSWH10X/22 eyepieces. It includes an Olympus SZX-PO polarizer in the stand and a rotating analyzer under the bottom lens. It is used and in excellent optical and mechanical condition - recently professionally serviced. The Olympus SZH-ILLK transmitted light base has on/off/intensity control on the lower left side with internal mirror adjust on the lower right side. The SZH-ILLK has a pre-centered 6V 20W halogen lamphouse (halogen bulb is included) and an internal tiltable mirror. It has an Olympus SZ-STS bonder arm with focus knobs that are adjustable for tension. Working distance is 110mm (5.11 inches). The Olympus SZ4045 has 6.3:1 zoom ratio, and 45° binocular head with 50-76mm interpupillary adjustment. The magnification range with the included 10X eyepieces is 6.7X to 40X. The field of view zoomed out is 32.8mm. The field of view with maximum zoom is 5.5mm. The base is 30 x 22 x 9 cm. A PDF instruction manual is also included. This polarized microscope is ideal for viewing minerals, fibers, polymers, gemstones, and a variety of different specimens. If you see this ad it is still available.