MicrostockGroup

Setting WB to Tungsten works if you're shooting outside.

I don't think the OP has explained his question that well, but apart from what Sharply has already said, if you mean where the photo would be a black & white albeit with a blue tint then that is done in Photoshop by just applying a Cooling Photo filter.

Like this:


Of course you can always do that to a colour image if you just wanted a more blueish looking image.

another possibility & other filters ;
http://www.optikvervelabs.com/download.asp

Hey thanks everybody. I probably should have been more clear but RT's example is what I'm talking about.

That's "Colorize" in PSP, as I said.  Then you choose the hue and saturation you want.

Regards,
Adelaide

RT,

Thanks for the explanation, as from the sample image given I could not tell the difference.

Regards,
Adelaide