BINOCULAR OBSERVATION HEAD WITH LCD DISPLAY Observation head inclined at 45o.Diopter adjustment ring on both ocular tube.Interpupillary distance from 55mm to 75mm.5 inch LCD screen with built-in digital camera & USB 2.0 output.EYEPIECEWide field Eyepieces 10X (Paired) FOV 20mmOBJECTIVESZoom 0.7X to 4.5X with magnification ratio of 6:1MECHANICAL BODYa) Tilting Stand.b) LED gooseneck.c) 3V LED transmitted lamp with dark field light arrangement. Iris diaphragm.d) Tweezer to hold Gem or Diamond.e) Lateral zoom control movement.MAGNIFICATION RANGE7X - 45XWORKING DISTANCE98mm