The BestScope BS-8030T Gemological Trinocular Zoom Microscope has a pair of 10x super widefield eyepieces, a 23.2mm trinocular port, a 1x-4x zoom objective, brightfield and darkfield halogen and fluorescent illumination, and a gem clamp. The trinocular viewing head has a binocular head with a fixed inclination to reduce eye and neck strain, and 360-degree rotation capability to provide a more comprehensive view and enable sharing; and a trinocular port that accepts a camera adapter (sold separately). The objective has 90.5mm working distance (WD) and 22-5.5mm field of view (FOV) for examining specimens. A gemological microscope uses transmitted and reflected light to view gemstones.