Sphere power:          

Range:+16.75D~-19.00D

When applied with auxiliary lenses +10.00D,-10.00D(option) +26.75D~-29.00D  Step:0.25D      

when applied with auxiliary lens +0.12D    Step:0.12D      

Cylinder power:                         

Range:0D~-6.00D

when applied with auxiliary cylinder lens -2.00D: 0D~-8.00D  Step:0.25D

when applied with auxiliary cylinder lens +0.12D  Step:0.12D

Cylinder axis:           

Range:0゜~180゜      Step:5゜                                    

Cross cylinder:          

±0.25D cross cylinder lens synchronized with cylinder axis.

(±0.37D,±0.50D,cross cylinder lens(option))

Rotary prism:            

Range:0Δ~20Δ            Step:1Δ                                   

P.D.Adjustment:          

50~75mm

Convergence Adjustment:  

∞,380mm(when P.D.64mm.)

Forehead Rest Adjustment:

16mm

Vertex Distance:         

13.75mm(from corneal point to standard lens surface)

Dimensions:              

338(L)x99(W)x292(H)mm

Weight:                 

5kgs(net)

Finish:                 

white grey  or black color 

Auxiliary lenses:       

by combinations of abundant auxiliary lenses,

charts various kinds of refractions are made