Thank you Guy's!
I really wanted to finish the writing for this weekend.
Originally Posted by Jack Flesher
Nicely written Wouter. I was holding off sharing my methods to see what you wrote. I teach a very similar method on the workshops, but do a few things differently. First, like you, I do not use the grayscale conversion in LR, but de-saturate. A step I add is next bumping contrast up pretty significantly. Then I adjust exposure, recovery and fill to taste (usually needed after the contrast bump), then if I feel the need for a further tweak (I don't very often) I can hit the luminance sliders to adjust tonal response. Did not ever try the camera adjustments trick though -- very clever!
Thank you Jack! Lightroom is still full of suprises. The luminance panel can be used as a channel mixer in Photoshop. But with much greater control and better usability too (with the Target adjustment tool).
According to one of the comments on my blog the grayscale option in Lightroom had a bug. Adjusting the color sliders in the Grayscale panel resulted in a noisier image. The desaturate method was a kind of workaround. It should have been fixed in version 1.4, but I still think it is too limiting and you can still get noisy images (I use version 1.4.1). Desaturating and adjusting the luminance in combination with the Camera Calibration is still my favorite method to convert photographs to B&W in Lightroom.
I am currently working on Develop presets for Lightroom to recreate the looks of B&W films like Kodak TRI-X, T-MAX, or Ilford HP5.