The AM4815ZT combines a polarizer with image processing features; Extended Depth of Field (ED) and Extended Dynamic Range EDR. EDOF and EDR are available to Windows PC users only.To view a rough or multi level surface with height range out of depth of focus, the AM4815ZT"s EDOF capture mode can take several pictures at different focus and stack them automatically within a click. Features (KEY) MicroTouch (MT) - A trigger sensor that provides convenient snapshot ability without disturbing the image by moving a physical button. Measurement (MS) - Use simple tools to draw lines, shapes, and text annotations on the image. Calibrate and measure dimensions including lines, circles, and angles. Polarization (PZ) - Built-in adjustable polarizer greatly reduces glare on reflective surfaces. Interchangeable Cap (IC) - A selection of swapable end caps for different applications. Extended Depth of Field (ED) - Automatically capture and combine multiple images at different focus levels to produce a final image with greater depth of field. Package Contents 1 x USB Digital Microscope 1 x Dino Capture Software CD (Also downloadable from the Dino-Lite website.) 1 x Calibration Target to be used for calibrating measurements. 1 x Set of Alternate Front Caps (6pcs.) 1 x Desktop Holder Specification Magnification Range: 10x-50x, 220x Lighting: White LED (8) Resolution: 1280 x 1024 Magepixels: 1.3MP Frame Rate (max): 30 FPS Operating System: Windows XP, Vista 7, 8, 10, Mac OS 10.5 and above Connection Type: USB 2.0 Image Save Formats: BMP, GIF, PNG, JPG, TIF, PNM, TGA Video Save Formats: WMV, FLV, SWF Applications: Lab Microscope with high depth of field Warranty Period: 2 years Manufactured in: Taiwan