Model Telescope

A simple demonstration model designed to show the working principle of a telescope. It is mounted on a tripod base with an MS rod of size 450 × 12 mm. The telescope features an achromatic objective lens with a 25 mm aperture. It is equipped with a 10X Ramsden eyepiece and provides smooth focusing adjustment through a rack and pinion mechanism. The sensitive focusing system and wide range of working distance make it a useful laboratory instrument for demonstrating telescope operation.