| GENERAL CHARACTERISTICS ITEM DESCRIPTION | 150W HALOGEN LIGHT SOURCE & A XENON SOURCE; MAGNIFICATION RANGE: 5X TO 2000X USING A 10X EYEPIECE W/5X,10X,20X,40X,& 80X OR 100X OBJECTIVES; MODES: BRIGHTFIELD,AND DARKFIELD ILLUMINATION,POLARIZED LIGHT ILLUMINATION,AND DIFFERENTAL INTERFERENCE CONTRAST; BUILT-IN CAMARA MECHANISM,PHOTO LENS AND CAMERA MOUNT; 4X5 POLAROID SINGLE SHEET FILM HOLDER & A 35MM CAMERA BODY; BLUE & GREEN FILTER; DIRECT READING AUTO EXPOSURE CONTROL,CALIBRATED IN RANGE OF ASA 6-3200 MIN W/SHUTTER SPEEDS 1/60 SEC TO 30 MIN,BUILT-IN PHOTO CELL; RETICLES: MICROMETER SCALE & ASTM AUSTENITE GRAIN SIZE; OBJECTIVES APOCHROMATIC CORRECTED & FLAT FIELD |