The Dino-Lite AM4113ZTL handheld digital microscope features longer working distance with an adjustable polarizer, and a 1.3MP sensor for a resolution of 1280 x 1024. This model has variable magnification depending of distance with longer working distances compared to standard models and a magnification range of 10x - 90x. Dino-Lite models with longer working distances are great for applications that require a certain space between object and microscope to either work under or require a certain distance to view. With the adjustable polarizer, you can adjust the amount of glare that reflects from what you are viewing, so you can see fine details of surfaces by fully or partially removing the reflection of semi-transparent materials like; jewelry, glass, or plastic. It is also ideal for examining highly reflective materials, such as metals or solder joints.