Flat sharp image erect and unreversed. Wide field eye pieces. Parafocal from high to low power quick changing paired objectives through 90? rotation. Long working distance and large field of view. Binocular tubes inclined at 45?. Adjustable interpupillary distance rotation in 360?. Direct measurement on specimens with optional eye pieces. Smooth rack and pinion focussing slide way tension controlled large knobs. Built-in Illumination both for incident light and transmitted light transformer built in base.
