The AmScope GM400T gemology stereo zoom microscope has a pair of 10x super-widefield high-eyepoint eyepieces, a 0.7x-4.5x zoom objective, and an inclined pillar stand. The microscope has an overall magnification range of 7x-45x. The trinocular viewing head has an interpupillary range of 55 to 75mm, a 45-degree inclination to reduce eye and neck strain, and 360-degree rotation to enable sharing. The trinocular port can be used as a C-Mount or 23mm photo port (camera sold separately). The WH10x20mm widefield high-eyepoint eyepieces combine with the 0.7x-4.5x zoom objective to provide continuous zoom magnification and a longer working distance for inspecting large-scale specimens that require handling or repair. High-eyepoint eyepieces ease viewing for users who wear glasses, and dioptric adjustment accommodates individual eye-strength differences. A stereo microscope, sometimes called an inspection or dissection microscope, has low magnification and a long working distance that enables users to manipulate the object being inspected.
The microscope has upper and lower rheostat-controlled lighting. The upper (reflected) 7W fluorescent light source is mounted on a gooseneck for examining surface details. The lower (transmitted) 30W halogen light source has a built-in darkfield condenser for examining the inside quality of gems. The inclined pillar stand has a round mechanical stage for measuring gem angles, a flexible gem clamp to secure gems at any angle. The white stage plate provides contrast with dark-colored specimens, and the frosted stage plate allows light to illuminate specimens from below. The inclined pillar stand can be inclined to 38 degrees. It has a round mechanical stage for measuring gem angles, a flexible gem clamp to secure gems at any angle. The white stage plate provides contrast with dark-colored specimens, and the frosted stage plate allows light to illuminate specimens from below.
