Description
The National Optical & Scientific Instruments 446-TBL-10 Stereo Microscope is both compact and budget-friendly, making it ideal for use in the lab as well as in other locations. Two magnifications of 1x and 3x are provided by the binocular widefield 10x eyepieces - which sit on a 45 inclined head. The viewing head also rotates 360 for easy sharing with lab partners. The 446-TBL-10 features both top and bottom tungsten illumination and a 4 position light control for top, bottom, top and bottom, and off options. The lights illuminate the two 80mm frosted glass stage plates (with reversible black/white plastic contrast plate) for a clear, accurate view of specimens, while locked-on stage clips keep the specimen in place.Optical System Paired widefield 10x eyepieces, left-side diopter adjustment, interpupillary adjustment from 55mm to 75mm Eyepieces equipped with reticle holder/retainer to accept reticle with 23mm O.D. Viewing head rotates 360 , adjusts up or down on post mount to accommodate difference size specimen Paired objectives are parfocalled, parcentered and achromatic Magnification changed by rotating objective turret 90 to positive click stopsIllumination Top light (incidental) is 12V, 10 watt tungsten with adjustable beam Bottom light (transmitted) is 12V, 10W tungsten 4-position light control: top only / bottom only / top and bottom / offBase Professional, all-metal frame Rack and pinion focusing with slip clutch and tension adjustment Includes two 80mm stage plates: frosted glass and reversible black and white plastic contrast plate Locked-on stage clips