Digital professional stereo microscope on articulating arm has long working distance to enable users to perform work or manipulate large items, including circuit boards and dental appliances, and has a 5MP camera with reduction lens and USB 2.0 output for capturing or displaying images on a computer or projector Trinocular viewing head has simultaneous viewing through eyepieces and trinocular port, interchangeable pairs of 10x and 25x super-widefield eyepieces, adjustable interpupillary distance, fixed 45-degree vertical inclination to reduce eye and neck strain, and 360-degree rotation capability to enable sharing 0.7x-4.5x zoom objective provides continuous zoom magnification and longer focal length for inspecting large-scale specimens, a 0.5x Barlow lens extends the working distance, and a 2.0x Barlow lens extends the magnification range Removable rheostat-controlled 144-bulb LED ring light provides intensity control and bright, cool light for working with temperature-sensitive or live specimens Pillar-type articulating arm stand has 40" reach, and a clamp for attaching to table or desk