Viewing head Compensation Free binocular head, 30° inclined, Interpupillary 52-75mm Eye piece Extra Wide Field Eyepiece EW10×/20 with Diopter Adjustment Objective Infinity Plan Achromatic Objectives 4×, 10×, 40×, 100× Magnification 40X -1000X Nosepiece Backward Quadruple Nosepiece Stage Double layer Mechanical Stage 140mm X 140mm Moving Range 75X50mm Focusing System Coaxial Coarse & Fine Adjustment, Moving Range 20mm with tension control and locking stage. Condenser Sliding-in centerable condenser NA1.25 Illumination Halogen 6V/30W /LED Brightness Adjustable Spare Parts Dust Cover, Spare Bulb, Spare Fuse Digital part 3.0 Mega Pixels CMOS Chip, Support Wifi and Bluetooth LCD Screen 8 Inch TFT Touching screen Output USB2.0?Mini USB?HDMI OS Android 4.2.2 Software TouchScope SD Card Support SD Card Mouse Optional Backward Quintuple Nosepiece Upgradable to LED Fluorscence Attachement Simple Phase Contrast Kit Dark Field Condenser NA 0.9 Dry Dark Field Condenser NA 1.25-1.36 Oil Simple Polarising Kit LED battery backup illumination with brightness adjustable intensity controller Halogen Lamp 6V 20W illumination with brightness adjustable intensity controller