Total magnification: 40X-80X-100X-200X-400X-800X-1000X-2000X; Eyepieces: wide field WF10X/18 and WF20X; Objectives: infinity achromatic 4X/0.10 ∞/-, 10X/0.25 ∞/0.17, 40X/0.65 ∞/0.17 (spring), 100X/1.25 ∞/0.17 (spring, oil); Viewing head: binocular digital Siedentopf 30 degrees Inclined 360 degrees rotatable; Interpupillary: adjustment 2-3/16inch~2-15/16inch (55mm-75mm); Diopter: adjustable on left eyepiece tube * Nosepiece: reversed revolving quadruple nosepiece; A lever to switch between beam spilt for photo part and 100% to eyepieces when camera is not in use; Stage: Double layer X-Y mechanical stage with scales, size 140mmx110mm (5-1/2inchx4-1/4inch), translation range 78mmx46mm (3inchx1-13/16inch); A specially designed back slot on the microscope stand for easy hand holding and carrying * Illumination: transmitted, 3W LED lamp, intensity adjustable; Focus: coaxial coarse and fine focus knobs on both sides with tension control; Stage upward stopper protects objective and slides; Condenser: NA0.9/0.25 condenser with iris aperture diaphragm, condenser center adjustable, top lens can be swing out of the light path; Color filter: green, 45mm in diameter, for trasmitted light; Power supply: AC 110V, 50/60Hz (US and Canada) (220V version available, contact seller) * Built-in digital camera: - Imaging device: 5.0 mega pixels, 1/2.5inch CMOS - Effective pixels: 2592x1944 - Maximum still image resolution: 2592x1944 pixels - Frame rate: 2.5 frames per second at 2592x1944, 10 frames per second at 1024x768 - Interface: USB2.0 ( 480MB/ second) - SNR: >40dB - Software compatible with Windows 2000/XP/Vista/Windows 7 32/64-bit, and Mac OS.; Dimension: 42cmx20cmx47cm (16-1/2inchx7-7/8inchx18-1/4inch) * 5-year warranty against manufacturing defects