Features: 1 X-Y Manual motion device 2 Motorized focusing system with foot switch 3 Manual zoom objective changer (zoom ratio: 1:6) 4 High resolution, high clear optic system 5 Excellent depth of field 6 Coaxial illumination range can be 3-step changed 7 Main & Assistant microscopes are in same optic path 8 Free-Rotatable assistant binocular tube is available as optional accessories for observing at any angle and any position 9 Video and Photo accessories are option.