1. 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)

2. +26.75D to- 29.00D (When optional + 10.00D lens is in use)

3. Cylinder power range: 0 to – 6.00D, with minimum reading 0.25D or 0.12D (when auxiliary lens is in use)

4. 0 to- 8.00D (when- 2.00D auxiliary lens is in use)

5. Astigmatic axis scale:0to180 in5 steps

6. Cross cylinder: 1 0.25D, reversal type (synchronized with astigmatic axis)

7. Rotary prism:0to 200D in 14D step

8. Interpupillary adjustment: 48mm to 80mm in 1mm step (right and left synchronized)

9. Forehead rest adjustment: 16mm backward and forward

10. Convergence: The optical axes of the lenses are aligned at a distance of 400mm from the

11. vertexes of the corneas (2mm each for right and left inward)

12. Interpupillary distance enabling convergence= =57mm to 80mm

13. Corneal distance device: 2mm forward and 5mm backward from standard plane; with scale

14. Effective field ofview: 19mm

15. Weight: 5kgs

16. Size: 323mmX 315mm x 85mm


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