A Landolt C distance chart with proportionally-spaced (LogMAR) lines; line sizes range from 20/160 to 20/10 (6/48 to 6/3) equivalent, 0.125 to 2.00. This chart can either be wall mounted or used in an ESV1200, ESV1500, or a Model A+ illuminated cabinet.
Dimensions: 9″ x 14″ (22.9 cm x 35.6 cm).
Testing distance: 10 feet/3 meters.
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