TRINOCULAR OBSERVATION HEADSiedentopf observation head inclined at 30° rotatable at 360°.Diopter adjustment ring on ocular tube. Interpupillary distance from 55mm to 75mm. EYEPIECE : Wide field Eyepiece 10X (Paired) FOV 20mm. Centering Telescope Eyepiece.OBJECTIVES(FINITE)Plan Achromatic Phase 10XPlan Achromatic Phase 20XPlan Achromatic Phase 40X (S L)Plan Achromatic Phase 100X ( S L) OilMECHANICAL BODY a) Co-axial focusing control with large knob, PRE-FOCUSING LEVER & TENSION ADJUSTMENT RING.b) Reverse angle quadruple nosepiece revolves on ball bearing.c) Mechanical stage size 140mmX160mm & having low positioned co-axial controls.d) The illuminator incorporates 6V/30W Halogen bulb and has adjustable Iris diaphragm.SUB STAGE CONDENSERAbbe Sub stage condenser with revolving turrent having annular phase plates for 10X, 20X, 40X, 100X objectives. Iris Diaphragm.STANDARD ACCESSORIES Blue & Green filter, 6V/30W Halogen Tungsten Bulb, STYRO FOAM Molded Pack.