Proportionally Spaced logMAR Sloan Letter Chart600711
This adult and children distance chart is the same as the 600705 Sloan Letter Chart, but the lines are labeled with only 10 ft and 20 ft notations. Proportionally-spaced lines; line sizes range from 10/80 to 10/5 (20/160 to 20/10) equivalent. This chart can either be wall mounted or used in an ESV1200, ESV1500, or a Model A+ illuminated cabinet.
Distance: 9" x 14" (22.9 cm x 35.6 cm).
10 feet/3 meters testing distance.