Sphere: -29.00~+26.75D(Regular)
-19.00~+16.75D(Cross cylinder, prism test)
(step: 0.12D/ 0.25D/ 0.5D/ 1D/ 2D/ 3D)
Cylinder: 0.00~9.00D(step: 0.25D/ 0.5D/ 1D/ 2D/ 3D)
Cylinder axis: 0~180°(step :1°, continuous)
PD: Far: 50~75mm Near: 49~70mm(step: 0.5/1.0mm)
Working distance: 35~70cm( step: 5 cm )
Prism: 0~10Δ(step 0.10/0.2Δ/0.5Δ/1Δ/2Δ)
Cross cylinder: Jackson Cross Cylinder ±0.25D
Jackson Cross Cylinder +0.5D
Retinoscope Lens: +1.5D, +2.0D(Test distance 67cm, 50cm)