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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.
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 stops
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 / off
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