Trinocular Observation Head: Siedentopf Observation head inclined at 45. Vertical phototube for micro photography. Diopter adjustment ring on ocular tube.Inter-pupillary distance from 54mm to 75mm. Objectives (Anti fungus coated): LWD Plan objective 4X, LWD Plan objective phase 10X, LWD Plan objective phase 20X,LWD Plan objective phase 40X Mechanical Body: Quintuple nosepiece. Pre-focusing Lever & Tension Adjustment Ring are on focusing mechanism. Hard coated fixed mechanical stage is 250mm X 160mm, slider clip, extension plate and co-axial moveable stage can be assembled. Sub Stage Condenser: N.A-03 Koehler illumination condenser, with Phase- adjustable slide plate, long working 72 mm.Filter: 5mm green interference filters, color temperature change filter,infrared eliminate filter. Standard Accessories: Electric Cable, Fuse, Vinyledust cover, Operating Manual, 12V/20W Halogen bulb, Styrofoam molded pack.