I assume you started with B&W film, since converted digital color would not have that range. [a href=\"index.php?act=findpost&pid=113687\"][{POST_SNAPBACK}][/a]
These are all made with 5d but I do not convert the colour image in normal way (PS channel calculation...)
To make them B/W I like to open them in Rawshooter and wipe all saturation and try to make the unsaturated (B/W) image as good as possible in Rawshooter and open it in PS. Of course some parts of the image are not so good. For this parts I make corrections in Rawshooter for exposure vallue and levels and then open a second image in PS. Normaly I have to do this 3 to 4 times and then I take from every layer what I need to make the complete image perfect.
Due to my bad English this may read a little complicate but this works verry well and quickly.
What I like on this method is the perfect control what happens and you get a result you don`t have to correct afterwards. With all the other methods of PS you always have to correct and there are so many ways to convert a colour image to B/W in PS, that it is very hard to decide wich works best for each image.
What I have to do when the image is finished: convert them to grayscale and reconvert to RGB. This is because there are always some single, slightly saturated pixles left and this wipse them all. I do reconverting to RGB because Windows ( perhaps only on my computer) shows the grayscaled picture darker then the reconverted RGB picture. I have no idea why