Specifications
- Size: 250 × 250 × 65 mm
- Weight: 1.13 kg
- Prism values: 0.25, 0.50, 0.75, 1.00, 1.25, 1.50, 1.75, 2.00, 2.25, 2.75, 3.00, 3.25, 3.50, 3.75, 4.00, 4.50, 5.00, 5.50, 6.00, 7.00, 8.00, 9.00 and 10.00 Δ
The fine steps in the low range make the set suitable for finding small prism corrections.
Which orthoptic instrument measures what? Read our guide: Orthoptic instruments: what each one measures.
