Digital Eyepiece camera 5.0 MP, USB 2.0 Sensor Parameter: 1/2.5?? 5.0MP CMOS Resolution: 2560*1944 USB port: USB 2.0 Frame Rate: 3.75fps for 5.0 MP Preview Model : 2560*1944, 2048*1536,1280?1024 ,1024?768 Pixel Size: 2.2?m *2.2?m Color Filter: RGB Bayer Pattern White Balance: Auto The Length of USB: 1.5 meter O/P compatibility: Windows?XP2, 7 and 8 Power supply: USB port Tube diameter: 23.2 mm or 30.00mm Connection: Ocular tube or C-mount Uniform focusing: YES Optical magnification: 10X Rate of field: 1/3 Matching lens: Yes Function of software: mage file management: set up, open up, save, lead in image file. Image capture: Switch, setting, shoot, measure, full screen view. Image edit: picture turn, zoom, cut, modify, email, print Resolution of display: 2560*1944 Resolution of picture: 2560*1944 Resolution of video: 2560*1944 Weight of device: 0.10kg