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
