Portable Lens Meter (JC-1)

Vertex Power Range +15diopterto-15dioper
Step 0-(± )10D for 0.125D
(± )10D-(± )15D for 0.25D
Prismatic Power Range 4 prism diopter
Step 1 diopter
Cylindnical Axis Range 0 to 180 degrees
Step 1·
Lenses Accommodated Diameter 20mm to 80mm
Eyepiece Focusing -5D to +5D
DC and AC (DC)3v (AC)6V/3W