I have Contrast +2, High/Low key at about -3 or 4 and the fine sharpness up to about 1 or 2 with a red or blue filter depending on what I'm going for. Cropping to 5:4 or 1:1 is also nice but I don't think you can do that in camera. I've tried using the toning but I've never found a situation where I don't think it looks god awful.
I love shooting B&W JPEGs, you lose so much control, but that constraint makes it so much fun.
Originally posted by halfspin It would be cool to to be able to just change the lcd view to b&w but shoot in raw.
You can do that on the K-5 and the K-x pretty easily.