OMAX 40X-2500X Phase Contrast Trinocular LED Compound Microscope + 9MP USB Camera Total magnification for brightfield: 40X-100X-250X-400X-1000X-2500X; Total magnification for phase contrast: 100X-250X-400X-1000X-2500X; Eyepieces: widefield WF10X/18 and WF25X; Brightfield objectives: achromatic DIN 4X, 10X, 40X (S), 100X (S, Oil); Phase contrast objectives (in phase contrast kit): achromatic PH10X, PH40X (S), PH100X (S, Oil); Viewing head: 45 degrees inclined 360 degrees swiveling trinocular 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); Photo tube adjustment range: 5/8inch (15mm); 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; Phase contrast kit: - NA1.25 condenser - Three separated condenser annular plates: 10X, 40X, 100X - Three phase contrast objectives: 10X, 40X, 100X - Each phase contrast condenser can be centered individually 37mm mounting size in diameter - Centering telescope: 23.2mm; Black palm rest on the base; Illumination: transmitted (lower), replaceable 3W LED light, variable intensity; Metal mechanical components; Power supply: 100V~240V 50/60Hz worldwide range (US and Canada power plug) Digital camera: - true color 3488x2616 pixels (9M pixels) - 0.5X reduction lens to get larger field of view - 0.01 mm calibration slide: 1mm/100 division - Frame rate: 1.9fps at 3488x2616, 8fps at 1744x1308, 27fps at 872x654 - Software compatible with Windows XP/Vista/7, Mac OS and Linux operating system - Capturing microscope images, recording live video, measuring lengths, angles, areas, editing images - USB cable included; 5-year warranty against manufacturing defects