OMAX 5MP Digital 40X-2500X Advanced Oil NA1.25 Darkfield Trinocular Compound LED Microscope with 5.0MP Camera with Measurement, Stitching, Extended Depth of Field Software Total magnification: 40X-100X-250X-400X-1000X-2500X; Eyepieces: widefield WF10X/18 and WF25X; Objectives: achromatic DIN 4X, 10X, 40X (S), 100X (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 Brightfield condenser: NA1.25 Abbe condenser with iris diaphragm and filter holder, rack and pinion adjustment; Oil darkfield condenser: NA 1.36-1.25 condenser; 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 2592x1944 pixels (5M pixels) - 0.5X reduction lens to get larger field of view - 0.01 mm calibration slide: 1mm/100 division - Frame speed: 5fps at 2592x1944, 18fps at 1280x960, 60fps at 640x480 - Software compatible with Windows XP/Vista/7/8/10, 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