Sphere Power Range

+16.75 to -19.00 diopters

Step 0.25 diopters

Cylinder Power Range

0.00 to -6.00 diopters(0.00 to -8.00 diopters with additional lens of -2.00 diopters)

Step 0.25 diopters

Cylinder Axis

0 to 180°, 5°step

Cross Cylinder

±0.25 diopters

Rotary Prisms

0 to 20, 1 step

PD Adjustment

50~75MM, 1MM steps