Specifications
- Measuring range: 0 to ±25 D; smallest step 0.125 D up to ±5 D, 0.25 D from ±5 to ±25 D
- Cylinder axis: 0–180°, 1° steps
- Prism: version A 0–5 Δ in 1 Δ steps; version B 0–20 Δ in 1 Δ steps
- Prism base: 0–180° in 5° steps
- Eyepiece adjustment: ±5 D
- Lens diameter: Ø 16–80 mm
- Size: 275 mm (H) × 130 mm (W) × 455 mm (D)
- Weight: 5.6 kg
- Lamp: 220 V 15 W / 110 V 15 W
