Meiji Techno, MT5200H, Binocular B.F. Research/Clinical Studies Biological Microscope, Halogen Illum.Features:Compact Space Saving Footprint design with ergonomics in mindInfinity Corrected Optical System (ICOS) with all newly designed opticsComfortable Siedentopf-type Binocular and Trinocular Viewing headsOptional Ergonomic tilting binocular head- Adjustable vertically from 10 to 50 degreesCeramic Coated Stage with Ergonomically Placed Low Position Drop down ControlLow Positioned Ergonomic Coaxial Focus ControlSmooth Operating Ergonomic Quintuple NosepieceSuper Bright LED Koehler illumination, lambertian LED designIntegrated Automatic Voltage Sensing Power Supply with localized power cordBrightfield. The simplest of all the optical microscopy illumination techniques. Sample illumination is transmitted (i.e., illuminated from below and observed from above) white light and contrast in the sample is caused by absorbance of some of the transmitted light in dense areas of the sample. Brightfield microscopy is the simplest of a range of techniques used for illumination of samples in light microscopes and its simplicity makes it a popular technique. The typical appearance of a brightfield microscopy image is a dark sample on a bright background.Phase Contrast. An optical microscopy technique that converts phase shifts in light passing through a transparent specimen to brightness changes in the image. Phase shifts themselves are invisible, but become visible when shown as brightness variations. When light waves travel through a medium other than vacuum, interaction with the medium causes the wave amplitude and phase to change in a manner dependent on properties of the medium. Changes in amplitude (brightness) arise from the scattering and absorption of light, which is often wavelength-dependent and may give rise to colors. Photographic equipment and the human eye are only sensitive to amplitude variations. Without special arrangements, phase changes are therefore invisible. The MT5000 Series is one of our most rugged fully equipped biological microscope systems. Created to meet the demands of researchers and clinical laboratory specialists. The MT5000 Series microscopes feature a new computer engineered rigid frame that incorporates low positioned coaxial coarse/fine focus controls and ergonomic stage design for maximum efficiency and comfort while providing and extremely stable platform. The cast aluminum alloy metal stand has a chemical resistant finish and is the most rugged, durable finish in the market today. Equipped tension adjustment controls and a built in stage stop lever to protect the specimen and objectives from accidental damage during use. The MT5000 Series offers an outstanding range of optical performance with an emphasis on all newly engineered high performance U. Plan optics. The new optics, provide exceptionally bright, crisp images with good color rendition and superior flat fields of view.