TRINOCULAR OBSERVATION HEAD•Siedentopf observation head adjustable from 0º to 40º rotatable at 360º.•Diopter adjustment ring on ocular tube. Interpupillary distance from 55mm to 75mm.EYEPIECEWide field Eyepiece 10X (Paired) FOV 20mmOBJECTIVESCCIS Plan Achromatic 4XCCIS Plan Achromatic 10XCCIS Plan Achromatic 20XCCIS Plan Achromatic 40X(SL)CCIS Plan Achromatic 100X(SL) OilMECHANICAL BODYa)Co-axial focusing control with large knob, PRE-FOCUSING LEVER & TENSION ADJUSTMENT RING. b)Reverse Angle sextuple nosepiece revolves on ball bearing. c)Mechanical stage size 180mm X160mm & having low positioned co-axial controls on ball bearing guide way.SUB STAGE CONDENSERSwing type N.A.1.25 Abbe Condenser with iris diaphragm & filter.ILLUMINATORKoehler’s illumination system with 12V-50W halogen lamps, adjustable brightness.STANDARD ACCESSORIESBlue & Grey filter. 12V/50W Halogen Tungsten Bulb, STYRO FOAM Molded pack.