Characteristic:
•Classic appearance, professional technology, precise measurement, easy and convenient operating, and best price value
•All the lens are anti-reflection coated.
•All Cross-Cylinder lens are Manus lens
•New leveling mechanism
•Fingertip adjustment for sphere power control
•Unique new convergence system mechanism
•Wide range of auxiliary lens combinations
•Precision machined to finest tolerances
•This is suitable for eyesight examination in spectacles shops, department of ophthalmology in hospitals, schools and enterprises
•Two colors choice

Specifications:
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)
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
Weight: 5kgs