Photoshop CS3 Black & White

Hi there,

 

I am used to using channel mixer for most of my BW conversion needs. I noticed

that in CS3, a new BW conversion method is possible with 'Black & White'. Can

someone explain to me (or point to appropriate websites) how they compute this?

I noticed that in all of my images, adjusting 'magenta' does nothing. I also

understand that there seems to generally be no rules applied, such as the sum

should be 100% in channel mixer.

 

Any pointers? Thank you for your time.

There's nothing to explain. Play with the 6 sliders to get the look you want, and check the "Tint" box and play with two more sliders to get the tint you want. Careful about that blue channel, though.

Moving the slider to the right lightens that color from the original in the new b&w, moving

the slider to the left darkens that color.

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try it in a photo that has a couple really distinct colors - it will be more obvious.

RussellBrown has a nice short video on his website about this very feature.

www.lynda.com have all the explanation you need, but really, theres nothing to explain, just play with the slider until you get the desire result.

You can watch <a href="http://diallophotography.com/blog/?p=5">2 QT tutorials</a> I

posted a few months ago on the color to b/w conversions options in CS3.

Thanks everyone. The tutorials were really helpful.