Photo Information (RGB Histogram)
The RGB histogram includes the following:

White balance (0White Balance)
Color temperature (0Choosing a Color Temperature)
Preset manual (0Preset Manual)
White balance fine-tuning (0Fine-Tuning White Balance)
- Histogram (RGB channel)
- Histogram (red channel)
- Histogram (green channel)
- Histogram (blue channel)
To zoom in on the picture in the histogram display, press X. The histogram will be updated to show only the data for the portion of the picture visible in the display. Use the multi selector to scroll to areas of the frame not visible in the monitor. Press W (Q) to zoom out.

Histograms show tone distribution. Pixel brightness (tone) is plotted on the horizontal axis and the number of pixels on the vertical axis.
If the picture contains objects with a wide range of brightnesses, the distribution of tones will be relatively even.

If the picture is dark, the distribution will be shifted to the left.

If the picture is bright, the distribution will be shifted to the right.

Increasing exposure compensation shifts the distribution of tones to the right, while decreasing exposure compensation shifts the distribution to the left. Histograms can provide a rough idea of overall exposure when bright ambient lighting makes it difficult to see pictures in the monitor.
- RGB histograms show tone distribution.
- Camera histograms may differ from those displayed in imaging applications. Use them as a guide to actual tone distribution.