Measurement range
Spherical power
-19.00 to +16.75 D (0.12, 0.25 D steps)
Cylindrical power
0.00 to -6.00 D (0.12, 0.25 D steps)
0.00 to -8.00 D (when additional lens is used)
Cylindrical axis
0 to 180°
Prism
0 to 20 ∆ (1 ∆ step)
PD
50 to 80 mm
Refractor Head
Auxiliary lenses
Occluder, pinhole, red/green filter, polarising filter (45°/135°), fixed cross-cylinder lens (±0.50 D), red/white Maddox rod vertical/horizontal, prism (6, 10 ∆ I, U), +0.12 D lens
Cross-cylinder
±0.25 D
Add. lens set
2x cylinder lenses -0.12 D, -2.00 D
Retinoscopy
+2.00 D for 50cm
Effective field of view
18.5 mm
Dimensions
Dimensions WDH
340 x 110 x 310 mm
Weight
Approx. 4.8 kg