This 5% Low Contrast Sloan Letter Chart features proportionally spaced (logMAR); line sizes range from 13/83 to 13/6.5 (4/25 to 4/2) equivalent. The other equivalents featured on this chart are letter size, 20 foot, 6 meter, decimal, and LogMAR. This chart can either be wall mounted or used in an ESV1200™, ESV1500™, or a Model A+ illuminated cabinet. Includes a response key and instructions.

Dimensions: 9" x 14" (23 cm x 35.5 cm).

Testing distance: 13 feet/4 meters.