Originally posted by ruggiex
Thanks for the tips everyone, looks like I have some homework to do.
A quick 5 mins tweaks with Avnh's suggestion got me mostly there but I can't keep non-red as black as the filter and the red isn't as brilliant either. I will have to play around with it more. (with only LR4)
When you put the image to black and white (click on B&W on the top right in the first panel under the word basic) you can change the "level" of how black or white each colour will be.
It's in the HSL and more colour option panel, it's the 3th or 4th panel.
Not sure what you mean with brilliant, maybe the slide that's in the first panel named clarity might do the trick.