MICROSCOPE PETROLOGICAL

siedentopf trinocular 30o inclined, 360o rotatable. Interpupillary distance adjustable between 48-75mm. Diopter adjustments ring in atleast one eyepiece.

eyepieces  extra wide field 10x (paired) fov 20mm. 

nosepiece quadruple nosepiece revolves on ball bearing.

analyzer rotatable analyzer with graduation 0 o -90o 

stain free plan achromatic objectives 4x, 10x, 40x, 60x.

circular rotating mechanical stage rotatable large 170mm diameter circular rotating (360o) stage utilize ball bearing i.e. Graduated in 1o increment and include a vernier reading to 6’. Stage rotation lock screw & stage centering knobs provided.

condenser   strain free polarizing condenser n.a. 0.9/0.25 with adjustable iris diaphragm and filter holder. 

focusing co-axial focusing control with ball bearing guideways & large knobs, pre focusing lever & tension adjustment ring. The slow motion has 1div=2microns.

compensator  gyps 1^ (dia. 18mm, 1st order red compensator plate, 550 nanometers) mica ¼^ (dia. 18mm, 147.3 nanometers) quartz wedge (12 x 28mm, i-iv)

polarizer with lock can be rotated 360o. 

illumination  incorporates transmitted 12v/20w lamp. Reflected 100w mercury lamp.

power supply 220-240v, 50/60 hz