SPECIFICATION
NJC-5 Lens meter
Characteristies:
INTERNAL READING
Vertex Power
Range:+20diopterto-20dioper
Step:0.12D
Prismatic Power
Range:5 prism diopter
Step:1 diopter
Cylindnical Axis
Range:0 to 180 degrees
Step:1 degrees
Lenses Accommodated
Diameter: 20mm to 80mm
Eyepiece Focusing:-5D to +5D
Bulb:220V/110V-6V Direct current 3V