Hello! Do you need help? Click on the operator and write to us.
LEA numbers chart proportionally spaced (logMAR); line sizes range from 20/125 to 20/8 (6/38 to 6/2.4) equivalent, 0.16 to 2.50 - this chart can either be wall mounted or used in the 50.028.00 illuminated cabinet - 10 feet/3 meters testing distance - chart size is 9" x 14" (23x35.6 cm)