Chip charts for contrast reference and basic monitor calibration. The charts define correct viewing conditions for monochrome images relative to my own production environment. The charts are calibrated with the black and white points set for Gray Gamma 2.2 and Dot Gain 20 %. All of my black and white pictures (online) have contrast (tonal levels) optimised for the Gray Gamma 2.2 standard. Click on images to see larger.