The stereo microscope offers ergonomic features such as synchronized bi-lateral inter-pupillary distance adjustments. Designed to outfit with a variety of lens accessories to increase or reduce magnification. Smooth in operation, it has a calibrated zoom range operable on both sides of the head. The trinocular model with digital camera is excellent for photo microscopy or LCD screen. This series is an ideal microscope for studying living organisms, disserting small specimens, studying crystalline or rock structure, plus electronic and small part inspections. Limited 5 year warranty.