OBSERVATION HEADS - TWOSiedentopf observation head inclined at 30°rotatable at 360°. Phototube for photomicrography. Diopter adjustment ring on ocular tube. Interpupillary distance from 48mm to 75mm. Co-user siedentopf observation head inclined at 30°rotatable at 360°. Diopter adjustment ring on ocular tube. Interpupillary distance from 48mm to 75mm. EYEPIECEWide field Eyepiece 10X (Paired) FOV 22mmOBJECTIVES (INFINITY COLOR CORRECTED)CCIS DIN Plan Achromatic 4X CCIS DIN Plan Achromatic 10X CCIS DIN Plan Achromatic 20XCCIS DIN Plan Achromatic 40X (S L)CCIS DIN Plan Achromatic 100X (S L) OilMECHANICAL BODY a) Co-axial focusing control with large knob, PRE-FOCUSING LEVER & TENSION ADJUSTMENT RING.b) Reverse angle quintuple nosepiece revolving on ball bearings.c) Mechanical stage size 185mmX142mm & having low positioned co-axial controls on ball bearing guide ways.POINTER Green LED pointer, Brightness adjustable.SUB STAGE CONDENSERSwing Abbe Condenser N.A.0.9/0.25 , swing out filter holder. Iris Diaghragm.ILLUMINATORKoehler’s illumination system with 12V-50W halogen lamp, adjustable brightness.STANDARD ACCESSORIES Blue & Grey filter, 6V/30W Halogen Tungsten Bulb. STYRO FOAM Molded Pack.