Camera Color

How to isolate a color using a camera?

I just got the new Canon Power Shot SD780 IS. I saw my friend push some buttons and she was able to isolate one specific color before she took the picture. anyone know how on this camera?

I must be the only person left on the planet that actually reads her owner's manual and learns a lot from that.

Apart from that, there is something to consider here about the color accent option: it seems to be a current fad (terribly overused) that teenagers are all excited about. The camera keeps one color and turns everything else black and white.

I would never use such a feature for the following reasons:

• You are very limited in what you can do.
• The function isn't always reliable or accurate. The camera's idea of "red" might be different to yours. It will often include/exclude areas that you don't want to have included/excluded.
• Imagine if you just happened to take your best photo ever, but instead of having a real color photo, you only have some partial b&w thing that might look totally awful. You'd kick yourself.
• If you do the "Selective or Partial Desaturation" (as it is called correctly) in post processing, you have much more control over it, and will get a way better result. Plus you can keep your original color version, too.

This also applies to any color effects done in camera like b&w, sepia or color swap - you're better off NOT to. Doing such things on the computer gives you MUCH better control and a much better result.

If you don't have your own image editor, you can go to www.picnik.com and use their effects menu which makes it very easy.