DIGITAL TRINOCULAR OBSERVATION HEAD•Siedentopf observation head inclined at 30º rotatable at 360º•Diopter adjustment ring on ocular tube. Interpupillary distance from 55mm to 75mm. Built-in head 1.3 Mega pixel camera with USB 2 output.EYEPIECEWide field Eyepieces 10X (Paired) FOV 22mmOBJECTIVESLWD Infinite Plan 2XLWD Infinite Plan 10XLWD Infinite Plan 20XLWD Infinite Plan 50X (SL)MECHANICAL BODYa)Co-axial focusing system with large knob, PRE-FOCUSING LEVER & TENSION ADJUSTMENT RING. b)Quadruple nosepiece on ball bearing c)Mechanical stage is 153mmX204mm and have co-axial controls on ball bearing guide ways. Circular disc rotatable at 360º.ILLUMINATOR Cold light Epi illuminator has 12V-50W halogen lamp with intensity control knob. Polarising attachment fixed in Epi- illuminator arm.STANDARD ACCESSORIES12V/50W Halogen lungsten bulb.STYRO FOAM molded pack