This small lightweight Photoshop plugin gives you the ability to very easily create grayscale step wedges for black and white printing. Using step wedges in the print workflow is an ideal way to evaluate how your paper – ink, and printer respond to different shades of grey which is ideal for any black-and-white printing process.
After printing the step wedge, we carefully examine the patches and especially the adjacent patches to ensure that we have good tonal separation. What we do not want is the have adjacent tones clumped together especially down in the shadows or in the highlight region.
Zone Scale
If you like to work with the Zone System, there is now an option to open a Zone Scale which shows all the 10 zones including half zones. Underneath each zone is the RGB number so you can quickly evaluate which zones part of your photograph are in
See more information on the Gray Scale Step Wedges Photoshop Plugin.