National Optical 453TBL-10-LED Stereo Microscope with Fixed Head, 10x Eyepiece, 2x and 4x Objective, Cordless LED Illuminator Light Source, 20x and 40x Magnification

Description

National optical stereo microscope. The quality features and versatility of larger stereo microscopes, in a compact size only 12-inches 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. Optical system: Paired widefield 10x eyepieces, left-side diopter adjustment, interpupillary adjustment from 55 to 75-millimeters. Eyepieces equipped with reticle holder/retainer to accept reticle with 23-millimeters OD Paired objectives are parfocalled, parcentered, achromatic. Magnification changed by rotating objective turret 90 degrees, to positive click stops. Fixed head. Illumination: 4-position light control: top only, bottom only, top and bottom, off. Top light (incidental) and bottom light (transmitted) cordless LED illumination. 8 hour charge provides up to 50 hours of use. Focusing: Rack and pinion focusing with slip clutch and tension adjustment. Stage: Supplied with two 80-millimeters stage plates, one frosted glass and one plastic black/white reversible contrast. Two locked-on stage clips. Frame: Rugged cast metal frame, gray enamel finish. Molded styrofoam container with instruction brochure, vinyl dustcover and rubber eyeshields. Objective: 2x, 4x. Total Magnification: 20x, Field Size: 10-millimeters. Field size: 10-millimeters, 5-millimeters. Working distance: 75-millimeters. Maximum specimen height: 35-millimeters. Molded styrofoam container with instruction brochure, eyeshields and vinyl dustcover. 5 year limited warranty, excluding bulbs, cord, and fuse.