Sphere powers range: | +16.75D to -19.00D, with minimum reading 0.25D or 0.12D
(When +0.12D auxiliary lens or optional±0.12D lens is in use) |
+26.75D to－29.00D (When optional ±10.00D lens is in use) |
Cylinder power range: | 0 to－6.00D, with minimum reading 0.25D or 0.12D
(when auxiliary lens is in use) |
0 to－8.00D (when－2.00D auxiliary lens is in use) |
Astigmatic axis scale: | 0 to 180° in 5° steps |
Cross cylinder: | ±0.25D, reversal type (synchronized with astigmatic axis) |
Rotary prism: | 0 to 20∆D in 1∆D step |
Interpupillary adjustment: | 48mm to 80mm in 1mm step (right and left synchronized) |
Forehead rest adjustment: | 16mm backward and forward |
Convergence: | The optical axes of the lenses are aligned at a distance of 400mm from the vertexes of the corneas (2mm each for right and left inward) |
Corneal distance device: | 2mm forward and 5mm backward from standard plane; with scale |
Effective field of view: | 19mm |
Weight: | 5kgs |
Size: | 323mm×315mm×85mm |