⭕ This is a Questar SZ QM-100 Long Distance Microscope. Checked and in full working order. It comes with power supply, hand control, accessories and foam lined hard case. If you are familiar with Questar, they have been making some of the finest telescopes and other optical instruments in the world for over 50 years. The Questar Step Zoom M100 Multi Focal Length Optical System is a compact, rugged and lightweight fully motorized microprocessor controlled Long Distance Microscope based on the Maksutov Cassegrain Catadioptric optical design. Its processor controls provide the operator the capacity to locally or remotely control changes of magnification, filtering, and focus. It is suitable for visual, film, video or CCD applications. Can help with shipping.