TRINOCULAR OBSERVATION HEADSiedentopf observation head inclined at 30° rotatable at 360°.Diopter adjustment ring on ocular tube. Interpupillary distance from 55mm to 75mm.EYEPIECEWide field Eyepiece 10X (Paired) FOV 20mmOBJECTIVES(INFINITE)Plan Achromatic 4XPlan Achromatic 10XPlan Achromatic 40X (S L)Plan Achromatic 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.e) Provision to incorporate Polarizer / Analyser.SUB STAGE CONDENSERAbbe Condenser N.A.1.25 with adjustable, Iris Diaphragm.STANDARD ACCESSORIES 6V/30W Halogen Tungsten Bulb, STYRO FOAM Molded Pack, Blue & Grey filter.