Feature:
Internal reading lensmeter
±25D measurement
Wide field of vision observation
Technical Data
Ranges of Measurement 0 to ±25D
Minimum Outer Reading:0.125D
Inner Reading:0.125D graduation up 0 to ±5D
and 0.25D graduations over±5D to ±25D
Cylinder Axis Range 0-180° (step 1°)
Primatic Power Range 0-5∆ prism diopters, ∆graduations with prism
compensation device 0~20∆prism diopters, 1∆graduations
Prism Base Angle 0~180° Eyepiece Adjustment ±5D
Dimension of Objective Lens Φ16~Φ86 mm
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