| Measurement Range |
| Spherical power |
-19.00 D to +16.75 D in 0.25 D step |
| Cylinder power |
0 to -6.0 D and 0 to -8.0 D ( with auxiliary cylinder lens at -2 D) |
| Step |
0.25 D |
| Cylinder Axis |
0° to 180° in 5° step |
| Cross Cylinder |
±0.25 D |
| Rotatory Prism |
0 to 20â–³ in 1 â–³ step |
| Pupillary Distance adjustment |
50 to 75 mm in 1mm step |
| Forehead Rest adjustment |
16 mm |
| Vertex Distance |
13.75 mm |
| Finish Color |
gray & black |
| Content of Auxiliary Lens Dial |
 |
open aperture |
| “R” |
retinoscopic lens +1.5 D |
| “P” |
polarizing lens (45°-left eye & 135°-right eye) |
| “WMH/RMH” |
maddox rod- horizontal white (left) red (right) |
| “WMV/RMV” |
maddox rod- vertical white (left) red (right) |
| \"GL\" |
green lens |
| “RL” |
red lens |
| “PH” |
pin hole |
| “OC” |
occluder |
| Physical Parameters |
| Dimensions |
340 mm (L) x 100 mm (W) x 290 mm (H) |
| Weight |
net 5.0 Kg and gross 7 Kg |
