Range of diopter measurement: 

0~±25D

Minimum scale value:           

0.125Dat 0~±5

0.25Dat ±5D~25D

Cylindrical lens axis of astigmatism:

0~180゜,Minimum scale value:1゜

Prism diopter:

Pattern A:0~5Δ, Minimum scale value: 1Δ

Pattern B:0~20Δ,minimum scale value 1Δ

Prism basal angle:                     

0~180゜,minimum scale value 1゜

Adjustable range of eyepiece:   

±5D

Measured size of lens:               

φ16~φ86mm

Dimensions:                               

275(L)x120(W)x430(H)

Weight:                                     

4.0kgs

Illuminating lamp:                     

110V/220V   3V-3W