November 13, 2013 January 11, 2022 $240.00 The Log-F contrast chart is analyzed by Imatest Rescharts. Isolight Log Frequency Contrast Chart quantity Add to cart Request a Quote SKU: LOGFCONT-IJ-Isolight Category: Uncategorized Description The chart is printed with ink-jet process on high quality luster/semigloss paper, and sized to fit the Isolight system.