LENSOMETER












LENSOMETER SPECIFICATIONS * Target : Cross & Corona, 360 degree. * Vertex Power Scale : 0 to +/- 24 Diopters. * Prism Diopter Scale : 0to 5 (1 step) * Cylendrical Axis : 0 to 180 degree (5 degree step) * Lens Diameter : Up to 90mm * Eyepiece Adjustment : +3 to -5 Diopters, 0-90 degree freely adjustable. * Light Source : Two 1.5 V AA Batteries (also usable with3V AC adapter