1) Start a gradient map adjustment layer with the colors black on the left and white on the right.
2) Hue/Saturation adjustment layer and bring saturation all the way down.
3) Channel Mixer adjustment layer
Check Monochrome
Move constant slider to left, and red slider to the right.
Play around with the sliders from there, just make it look good! High contrast black and white made easy!
Examples-
Desaturated only-
The tutorial I just showed-
2) Hue/Saturation adjustment layer and bring saturation all the way down.
3) Channel Mixer adjustment layer
Check Monochrome
Move constant slider to left, and red slider to the right.
Play around with the sliders from there, just make it look good! High contrast black and white made easy!
Examples-
Desaturated only-
The tutorial I just showed-