Digital Biological Microscope ME21 adopts Olympus bio-microscope CX22 with UIS2 optical system.It has plan achromatic objectives and its digital camera can be connected to PC by USB2.0 interface. ME21 can output high resolution digital image signal and the bundle software has powerful function of image capture and processing which can achieve image shooting and analyzing. Furthermore, the strong system scalability makes it can be added with different kinds of optional accessories, such as bright field, dark field, phase contrast, polarizing, and BG fluorescent excitation, etc. Features of digital microscope ME21: Optical System: UIS2 infinity-corrected achromatic optical system; Body: ergonomical design make sure high stability and rigidity. Objectives: infinity plan achromatic objectives 4X?10X?40X?100X Illumination system: 6V/20W halogen lamp, Kohler illumination Observation tube: hinged trinocular digital observation head, 10X eyepiece, 1X C-mount adapter Digital camera: 5.0 megapixels CMOS camera, high speed USB2.0 interface, 5fps@2592x1944, 19fps@640x480, with user-friendly image analysis software.