Getting perfect white balance

When you’re shooting in mixed light, most camera’s automatic white balance can give incorrect or inconsistent results. The most accurate way to get the correct white balance is by measuring it. Most photographers carry a gray card for measuring & setting white balance, but Photojojo has something a lot more convenient: the white balance lens cap.

White Balance Lens Cap

Instead of carrying around something extra, simply replace your lens cap with the white balance lens cap. Before you start shooting in a new location, measure the light and set the white balance. Then remove the lens cap and shoot normally.

On a D90, press the white balance button and turn the command dial until it shows PRE. release the white balance button and press it again and hold until PRE starts blinking. Set the camera to automatic exposure and snap a picture (which will be solid white/gray). The display will flash GOOD if it was able to successfully capture a reference image. That’s it – you can now shoot normally.

Here are two sample images, taken with automatic white balance and measured white balance, both with no adjustments. The wall is off-white and the lighting is a halogen lamp.

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Automatic white balance Measured white balance

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