Using fewer plates than four is also a cheaper alternative when printing smaller series, and it will often look much better than a plain black and white print. The difference is that the screen angle is set differently, so that the little ink dots will not end up in the exact same spot. Checklist To create a spot color multi-tone, there are a few things you must first take into consideration. You can choose from a great variety of custom colors, so you can go about in two different ways. Remember that color in alpha channels is for preview only.
All channels are grayscale.
Always ask your printer's advice about this. Ask in what order they prefer to print the different inks, and the approximate density of the last ink to be applied. As always, make a color proof that you're satisfied with, and tell the printer to adjust the final settings to look like your proof. For more information on the printing procedure and pre-press, see chapter 13. How to create a duotone Start by opening the image you want to turn into a duotone.