The T720Q is an economical microscope designed for professional biological applications. Its infinity-corrected optical system ensures reliable, low-distortion magnification, with plan-achromatic corrections for accurate colors, excellent field flatness and edge-to-edge sharpness. A quintuple lens-turret is used, providing five levels of magnification. The Koehler-design LED illumination system provides bright, evenly-distributed light for maximum contrast and definition. This model is a popular choice for veterinarians and university laboratories. The trinocular head accommodates simultaneous viewing through both eyepieces and the top-mounted photo port. The binocular viewing tubes use Siedentopf adjustment to easily fit any user. Focusable eyepieces are used to compensate for users with astigmatism or asymmetrical sight. For mounting a camera, the photo port provides a 23mm tube and a C-mount adapter for use with most microscopy imaging systems available. The quintuple objective turret provides instant access to 5 magnification levels to easily focus in on minute details from 40X to 1000X. Additional 25X eyepieces expand the maximum magnification to 2500X with 8 unique levels. This covers magnifications needed for studying hair follicles, cells, soil, and bacteria. The turret's reversed orientation provides more working room above the stage. These high-quality lenses are achromatically corrected to improve resolution and color accuracy, with planatic flat-field correction to provide edge-to-edge sharpness. The large 2-layer mechanical stage provides smooth and precise movement for examination of specimen slides. The rackless design provides a wide range of movement without the obtrusive, exposed teeth of conventional mechanical stages. The stage's low-position controls are conveniently placed near the coaxial focus knobs for a streamlined workflow. Examining specimen slides is intuitive and precise for users at any skill level. Built on Koehler illumination principals, the sub-stage lighting provides evenly-distributed light for optimal contrast. The LED light-source ensures cool, energy-efficient illumination with low heat for live specimens. The bright light-source is daylight-balanced to produce natural colors for imaging. The Abbe light condenser has a high 1.25 numerical aperture for oil-immersion, and an iris diaphragm to optimize contrast and depth-of-field. The condenser holder uses rack-and-pinion height adjustment for precision control, and is centerable for proper alignment. The illuminator's field lens provides an iris diaphragm to control light-spread, optimizing contrast and definition in specimen features. Monitor and capture photos and videos with the included 18.0MP USB3.0 camera. The C-mount camera is specially designed for use with microscopes, allowing you to watch live images, and to record photos or videos on your computer. This ability to view microscopic images on your computer reduces eye-strain, and allows groups of people to view images at the same time. The USB 3.0 connection provides greater bandwidth for faster frame-rates. A 0.5X reduction lens is included for use with 23mm-30.5mm ports to capture more of the microscope's field-of-view. Our professional software for Windows provides a wide assortment of capture and photo-editing functions including color correction, time-lapse capture, image stitching, and a full complement of measuring tools. A lite version of our software is available for Mac and Linux with essential functionality for capturing photos and videos. Specifications Optical System: Infinite-conjugate Head: Trinocular, 30° incline, 360° rotatable Photo Port: fixed-height 23mm tube mount Interpupillary Adjustment: Siedentopf, 55-75mm Ocular Diameter: 30mm Ocular Diopters: none (use focusable eyepieces) Eyepieces: 10X, 25X Objective Lenses: Infinity-corrected Objective Parfocal Distance: 45mm Objective Mounting Thread: RMS 20.32mm Objective Turret: Reverse quintuple, ball-bearing movement Focusing System: Coaxial coarse and fine focus, tension control Focus Range: 24mm Division of Fine Focus: 0.001mm Stage Design: Rackless double-layer with caliper Stage Dimensions: 216mm x 150mm X-Y Translation Range: 75mm x 50mm Transmitted Illumination: Variable-intensity LED Condenser: NA1.25 Abbe condenser with iris diaphragm Sub-stage Condenser-holder: rack and pinion Power: 90-240VAC 50/60Hz wide-band Camera Specifications Sensor Type: CMOS Sensor Optical Format: 1/2.3" Active Pixels: 18M (4912 x 3684) Pixel Size: 1.25µm x 1.25µm Active Sensor Area: 6.14mm x 4.61mm Shutter: electronic rolling shutter Spectral Response: 380-650nm with IR-cut filter Capture Resolution and Maximum Framerate: 5.6fps @ 4912x3684, 18.1fps @ 2456x1842, 32.2fps @ 1228x922 Connectivity: USB 3.0 Lens-mount: C-mount Compensating Lens: 0.5X Power: 5VDC over USB Software OS Requirements: Windows (32/64 bit) XP/Vista/7/8/10, Mac OS 10.8+, Linux kernel 3.13+ Hardware Requirements: Intel Core2 2.8GHz or comparable processor, 4GB RAM Features: Windows Version --Live video preview --Captures still images and video --Time-lapse capture --Exposure and white-balance controls --Dark-field correction --Digital binning --Image processing --Measurement tools, including lines, arcs, polygons --Segmentation and counting tools --Image-stitching, extended depth-of-field, HDR --Fluorescence color-mapping Mac/Linux Versions --Live video preview --Captures still images and video --Exposure control --Color adjustment --Measurement tools, including lines, arcs, polygons Packing List:One trinocular head One microscope body Five objective lenses: 4X, 10X, 20X, 40X, 100X One pair 10X eyepiecesOne pair 25X eyepieces One power cord (US and Canada standard) One dust coverOne C-mount USB camera One 0.5X reduction lens Two sizing adapters One USB 3.0 Type B to type A cable One software CD