For a lot more than you will ever want to know about Digital BW images look for some of the seminars /workshops by photographer Vincent Versace. There are several on you tube. Vincent Versace was one of the 1st ambassadors for Nikon as well as Epson and Lexar. Believe he was olso one of the 1st photographers who worked with Nik in the development of Silver Efex Pro. I remember way back when using Nikon Capture, before lightroom was introduced, and was forwarded by Vincent 3 or 4 of the Nik Color efex Pro filters and used the upoint technology in Nikon capture.