Specification Same as VILM - 08 but with pinshole cross + crona target Type Occular type external reading system Vertex Power Range ? 25D step : 0.25D step upto ? 10D 0.50D step beyond ? 10D Cylindrical Axis Scale 0 to 180? (1? step) Prismatic Power Range 5 in the viewfield (1 setp) Target Pin hole Corona Eyepiece Focussing+ 3D to -5D Diameter of Lens Accomodated 30 to 80mm Tilting Angle 30? to 90? Light Source AC 220V 3W LED