Rachel from Little Vintage Photography demos split grade printing, sponsored by Ilford. The technique is discussed and results in actual prints are shown. Ilford offers a version in text on the web, with a rundown on split grade printing the Ilford way with the full details.
The 35mmc blog offers an alternative method of split grade printing, by Sroyon Mukhergee, with tips on dialing in the exposure. To quote from the article:
This means we can, for example, selectively burn certain highlights (by burning during the soft exposure) or dodge the shadows (by dodging during the hard exposure), in each case leaving the other tones relatively unaffected.
Enjoy this video by Rachel with Ilford's take:
