Contrast distance chart (4m) 10 % (Landolt)

Contrast chart with Landolt rings in logarithmic graduation with 10% contrast at a test distance of 4 meters. From visual acuity 0.1 to 2.0. Made of translucent plastic. Suitable for light box. Ideal for studies and sports eye testing. Board size: 62x65 cm. Also available in contrast levels of 1.25%, 2.5%, 5% and 25%. Matching light box see Art. No. 81014.