Dual Mag. Stereo Microscope (1X&3X) 456-TBL-15 National Optical's 450 Series has all the quality, features, and versatility of larger stereo models in a compact size. This series is designed to provide an upright, unreversed image and is ideal for viewing 3D objects and inspection. All the quality features and versatility of larger stereo microscopes, in a compact size only 12" tall. Ideal size for elementary and middle school, rugged enough for high school. Upright, unreversed image is designed for three-dimensional objects and dissecting. Choose low magnification for a wide field of view, then high magnification for close-up detail.MAGNIFICATION1x & 3x OPTICAL SYSTEMPaired widefield eyepieces with diopter adjustment on left side. Interpupillary adjustment from 55mm to 75mm. Reticle holder/retainer accepts eyepiece reticle with 23mm O.D..Magnification changed by rotating objective turret 90 degrees, to positive click stop. Fixed head. ILLUMINATIONHigh intensity 12v 10 watt incidental and transmitted illumination is built-in.Separate base mounted switches control power on/off, top and bottom lights, permit use of top light only, bottom light only, top and bottom lights together. FOCUSINGRack & pinion focusing with slip clutch and tension adjustment.STAGESupplied with two 80mm stage plates, one frosted glass and one plastic black/white reversible contrast. Two locked-on stage clips.FRAMERugged cast metal frame, gray enamel finish.Height: 310mm (12-1/4 in.)Base width: 115mm (4-1/2 in.), Base depth: 197mm (7-3/4 in.)Net wt. 2.5 kgs (5.5 lbs)
