Sphere: 0.0 to -29.50 Diopters, step: 0.12,0.25,0.50,1,3
0.00 to +26.75 Diopters, step: 0.2,0.25,0.5,1,3
"Cylinder: 0.0 to ± 8.75 Diopters, step:0.25,0.5,1,3
"
Cylinder Axis: 0°to 180° step:1°,5°,15°
"Prism: -20△ to +20△, step:0.1,0.5,20△
"
Prism form: Base up,base down,base in,base out
"Near distance: Mechanical converging with an optical axis at 40 to 67 in front of eye
"
"Binocular balance: Rotary prism,polarizing filter and R & G filter
"
"Cross cylinder: ±0.50D
"
PD: 48 to 80mm in 1 and 0.5mm step
Retinoscope: +2.00D or+1.50 both sides
Corneal alignment: 12 to 20mm by 2mm step and 13.75mm
Field of view: 35°
Power source: AC110-120V/220-240V,50/60Hz,90VA
Dimension & weight: 455×355×140mm,7.0Kg