OMAX 40X-2500X LED Binocular Lab Compound Microscope with USB Camera and Mechanical Stage Total magnification: 40X-100X-250X-400X-1000X-2500X; Eyepieces: wide field WF10X and WF25X; Objective: achromatic DIN 4X, 10X, 40X(S), 100X(S, Oil); Viewing head: 45 degrees inclined 360 degrees swiveling binocular; Sliding adjustable interpupillary distance: 2-3/16inch ~ 2-15/16inch(55~75mm); Ocular diopter adjustable on both eyetubes Nosepiece: revolving quadruple; Stage: mechanical double layer size: 4-1/2inchx 4-15/16inch (115mm x 125mm); Stage x-y stroke (travel range): 2-13/16inch x 1-3/16inch (70mm x 30mm); Condenser and diaphragm: NA1.25 Abbe condenser with iris diaphragm; Transmitted (lower) illuminator: LED light, intensity adjustable; Focus adjustment: Coaxial coarse and fine knobs on both sides All metal mechanical components; Power supply: AC/DC adapter, 100V-240V (UL approved) Digital camera: - True color 640x480 pixels (0.3MP) - Frame speed: 30fps at 640x480 - Software compatible with Windows and Mac OS X operating systems - Offers capturing still images, stitching, EDF, video recording and measurement functions - USB cable included 5-year warranty against manufacturing defects