Color swap is a very interesting in-camera feature of the Canon SX40 HS. I'm not sure what other digital cameras out there have this feature, but you may want to check your camera to see if it is available. Of course, you can probably achieve a similar effect via post production software, but it was fun to experiment with this in-camera effect when I was out and about. The basic premise is that you are actually swapping one color in the photo that you are taking with another available color. The following examples are not exemplary photographs; they just demonstrate this effect:
The top photo above shows the bench color as is in real life. In the second photo, I swapped out the color of the bench and made it the color of the grass.
The above photo shows white flowers as they appear in real life.
I swapped out the bright yellow in this park equipment truck for the white in the flowers.
Here is the result.
Now I'm sure you can still see some white in the flowers. This is because in choosing my white selection, I chose a portion of the white in a certain tone of the color, and this was the only portion that was swapped out. Objects in real life can be made up of different shades of colors. Keep this in mind when you are swapping colors.
One last example. I swapped out the lighter area of the sky with the pink from a nearby flower.
You can get as creative as you want with this effect. Just think of the possibilities. Get out your camera to see if it has this effect.
For Canon SX40 HS owners, please refer to 'Shooting with Color Swap' (P. 68 of your PDF User's Manual)
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