f e a t u r e S Sharp stereo erect image over a wide field of view Binocular Tube. 45° inclined binocular head with locked-in eyepiece. The left ocular-tube withdiopter adjustment ±5dp, The interpupillary distance is between 55-75mm Arm curved style standS t a n D a r D a c c e S S o r i e S Eyepiece 1 pair, Eyepiece cover 1 pair, Lamp, Glass stage, Power wire, Instruction manualCode No. 642-01-3 642-03-3Magnification 20X / 40X 40X / 80XField of View 10mm / 5mm 6.5mm / 3.2mmWorking Distance 76mm 76mmEyepiece WF10X / 20mm WF20XObjective 2X / 4X 2X / 4XIllumination System 12V/10W Halogen and Incandescent 12V/10W Halogen and Incandescent