Tutorials: Convert to bitmap

(Note: If I'm making a grayscale image or preparing one for coloring, I skip the conversion to bitmap in total.)

Usually I Threshold the image before converting into the bitmap (Image > Adjustments > Threshold). This allows me to manually adjust the grays, how much of the data I want to turn black or white. 

After that's done, I go to Image > Mode > Bitmap. I stick to the same resolution as the original and use Diffusion Dither.

And we're done. I save this "original" linework as a separate bitmap file. This serves both as a back-up and is needed if I'm preparing a print file with the bitmap linework on top of the color file. Sound confusing? I'll explain this later. :)