Kaisi KS-7045 Stereo Binocular Digital Microscope 1. Magnification range: 3.5X-45X Zoom 2. Objective power: 0.7X-4.5X 3. Eyepieces (DIN, 30mm): WH10 x 20mm high-eyepoint 4. Zoom range: 13:1 5. Field of View: 2-12 inch 6. Microscopes are widely used in education, lab research, biology, metallurgy, engineering, chemistry, manufacturing, and in the medical, forensic science, and veterinary industries. 7. The professional stereo zoom microscope has a pair of 10X super-widefield high-eyepoint eyepieces, a 0.7X-4.5X zoom objective, a 0.5X Barlow lens, and a single-arm boom stand, pillar stand. 8. The removable 80-bulb LED ring light provides bright, cool light for working with temperature-sensitive or live specimens. 9. The ring light provides shadow-free illumination, and a rheostat controls the amount of light emanating from the lamp. 10. Power and adjustment controls are located on the light head. The light has a 100,000-hour life span and a 90V-265V variable power supply. 11. Bilateral focus eases use for left- and right-handed users. The microscope head can be rotated on the X- and Y-axes. The solid cast-steel base is 1-34 x 9 x 9 inches (H x W x D).