Contrast chart distance (2m) 2,5 %

Contrast chart with SLOAN letters in logarythmic order. For 2 m distance vision tests, from visual acuity 0,1 to 2,0. Made of translucent white plastic. Ideally used with illuminated cabinets. Can be used in clinical trials/studies. Chart size: 62 x 65 cm. Chart available in the following contrast values: 1,25%, 2,5%, 5%, 10%, 25%. Scrambled version available (with other optotype order: See item 81698). Ideal illuminated cabinet for chart: See item 81014.