AmScope H100-E Digital Handheld Stand Measuring Microscope, 100x Magnification, 17mm Field of View, Includes Pen Light, 0.3MP Camera, and Software Digital handheld measuring microscope with a 100 unit measuring range and 0.01 reticle unit is used to measure objects in field, lab, and quality control applications, and a 0.3MP camera with USB 2.0 output for capturing or displaying images on a computer or projector 100x magnification, 17mm field of view, and 30mm working distance Achromatic lens coatings provide color correction to ensure full contrast Adjustable penlight illuminator is attached to base and can be adjusted to provide hands-free operation (requires two AAA batteries, included) Metal construction provides durability for field and classroom applications