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Pelli-Robson Contrast Sensitivity Chart 2L / Pelli-Robson Contrast Sensitivity Chart 4L
TEST CHARTS
contrast test
Metropia Ltd; Clement Clarke International
Europe: United Kingdom
1988
paper
overall: 1000 mm x 800 mm
2016.695
TEST CHARTS
contrast test
Metropia Ltd; Clement Clarke International
Europe: United Kingdom
1988
paper
overall: 1000 mm x 800 mm
Large double-sided paper chart for testing contrast sensitivity using test letter types (two copies).
2016.695
Gift of Howard Harris Opticians, 2016