SZMN 7045TR-B4 SOPTOP 7X-45X Zoom Trinocular Stereo Microscope.Used For Mobile Phone, PCB, BGA, and IC Assembly and Repair. Magnification: The standard magnification range is 7X to 45X continuous zoom, which can be extended with optional auxiliary lenses. Optics: It features a high-quality optical system with coated components and a 45° inclined viewing head for ergonomic use, reducing neck strain during prolonged work sessions. Working Distance: The typical working distance is 100mm, providing ample space to work on objects beneath the lenses. Applications: It is widely used for detailed inspections in fields such as electronics repair, quality control, biological studies, and material analysis. Build: The microscope has a durable, all-metal or aluminum alloy construction designed for long-term use in professional environments.