Range of diopter measurement: 

0~±25D

Minimum scale value:           

0.125Dat 0~±5D

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~φ80mm

Dimensions:                              

230(L)x150(W)x450(H)

Weight:                                      

4.9kgs

Illuminating lamp:                     

6V/2A  12W