OMAX 40X-2000X Built-in 3.0MP Digital Camera Compound LED Binocular Microscope w Aluminum Carrying Case Total magnification: 40X-80X-100X-200X-400X-800X-1000X-2000X; Eyepieces: wide field WF10X/18 and WF20X; Objectives: achromatic DIN 4X, 10X, 40X(S), 100X(S, Oil); Viewing head: 45 degrees inclined 360 degrees swiveling digital binocular head; Interpupillary distance: sliding adjustable 2-3/16inch ~ 2-15/16inch (55mm ~ 75mm); Diopter: adjustable on both eyepiece tubes; Nosepiece: revolving quadruple Stage: mechanical stain-resistant double layer size 5-1/2inch x 5-1/2inch (140mm x 140mm), translation range: 3inch x 2inch (75mm x 50mm); Focus: coaxial coarse and fine focus knobs on both sides, rack and pinion adjustment, with tension control; Focusing knob can be locked for observation and transportation; Condenser and diaphragm: Abbe NA1.25 rack and pinion adjustment condenser with iris aperture diaphragm Metal framework; Power supply: AC 100V~240V 0.2/0.1A 50/60Hz worldwide range (US and Canada plug); Outer dimensions of aluminum case : 16~1/2inch(L) x 12~1/2inch(W)x 13-3/8inch(H) (42cm x 32cm x 34cm); Lower part inner dimensions of aluminum case: 15~3/4inch(L) x 11~3/4inch(W)x 9~1/2inch(H) (40cm x 30cm x 24cm); Upper part inner dimensions of aluminum case: 15~3/4inch(L) x 11~3/4inch(W)x 2-1/4inch(H) (40cm x 30cm x 5.4cm) Black palm rest on the base; Illumination: transmitted (lower), replaceable 3W LED light, variable intensity; Built-in digital camera: - Imaging device: 3.0 mega pixels, 1/2.5inch CMOS - Effective pixels: 2048x1536 - Maximum still image resolution: 2048x1536 pixels - Frame rate: 4 frames per second at 2048x1536, 10 frames per second at 1024x768 - Interface: USB2.0 ( 480MB/second) - SNR: &gt;40dB - Software compatible with Windows XP/Vista/7/8/10, and Mac OS 5-year warranty against manufacturing defects