SERIES SERIE Stereo Microscope with Inclined Head and Dual Magnification All the quality features and versatility of larger stereo models, 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 viewing 3-dimensional objects, dissecting. Choose low magnification for a wide field of view, then high magnification for close-up detail. 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. • Fixed head. • Paired objectives are parfocalled, parcentered and achromatic. • Magnification changed by rotating objective turret 90° to positive click stops. ILLUMINATION • 4-position light control: top only/bottom only/top & bottom/off. • Top light (incidental) and Bottom light (transmitted) corded 12v 10 • watt tungsten illumination (Models 452TBL-10, 452TBL-10). Top light (incidental) and Bottom light (transmitted) cordless LED illumination (Models 452TBL-10LED, 453TBL-10LED) • 8 hour charge provides up to 50 hours of use (Cordless LED models) • Rack & pinion focusing with slip clutch and tension adjustment. • Includes two 80mm stage plates: frosted glass and reversible black/white plastic contrast plate. • Two locked-on stage clips. WARRANTY • 5 year limited lifetime limited warranty, excluding bulbs, c

National 450 Series Specifications Eyepiece Fixed 45° inclined head 80mm, frosted glass, reversible black & white Magnification Options Maximum Specimen 35mm Height Working Distance 12v 10w tungsten (Corded models), LED (Cordless Models) Bottom Illumination 12v 10w tungsten (Corded models), LED (Cordless Models) Height/ Weight PACKING: • Individual: Ship wt. 9 lbs (4.1 kgs), Dimensions 16x17x11 in. (400x425x275mm) • Master carton pack 4 each: Ship wt. 32 lbs (14.5 kgs), Dimensions 24x14x16 in. (600x350x400mm) N ation al Op tical & Sc ie nt if ic Inst r um e nt s, Inc . 11113 Landmark 35 Drive...