•All the lens are anti-reflection coated.
•All Cross-Cylinder lens are Manus lens.
•Fingertip adjustment for sphere power control.
•Measuring astigmatism
•Cross cylinder (±0.25D)
•Rotary prism
•Unique new convergence system mechanism
•Wide range of auxiliary lens combinations
•Precision machined to finest tolerances
•Net weight: 5kgs
•Dimension: 318 X 315 X 90mm
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 powers range......................0 to -6.00D, with mini 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, ±0.50D optional 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) Interpupillary distance enabling convergence = 57mm to 80mm Corneal distance device..................................2mm forward and 5mm backward from standard plane; with scale Effective field of view....................................................................................................................................19mm
