Fixing Exposures with Histograms

While you can often recover poorly exposed photos in your image editor, your best bet is to arrive at the correct exposure in the camera, minimizing the tweaks that you have to make in post-processing. However, you can’t always judge exposure just by viewing the image on your Alpha’s LCD after the shot is made. Nor can you get a 100-percent accurately exposed picture by using the Alpha’s continuous Live View feature. Ambient light may make the LCD difficult to see, and the brightness level you’ve set can affect the appearance of the playback image.

Figure 4.21 The Playback histogram screen shows the relationship of tones in an image, including brightness (top right), and red, green, and blue tones (middle and bottom right).