Nikon D90 user manual RGB Histogram, 130

❚❚RGB Histogram 1

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4	N I KON D90	13 / 13	9

1	Protect status	139
2	Retouch indicator	209
3	White balance	95
	White balance fine-
I	tuning	97
4	Camera name

5Histogram (RGB channel). In all histograms, horizontal axis gives pixel brightness, vertical axis number of pixels.

6Histogram (red channel)

7 Histogram (green channel)

8 Histogram (blue channel)

9 Frame number/

total number of images

1 Displayed only if RGB histogram is selected for Display mode (pg. 163).

APlayback Zoom

To zoom in on the photograph when the histogram is displayed, press X (for more information on playback zoom, see page 138). The histogram will be updated to show only the data for the portion of the image visible in the monitor.

N I KON D90 13 / 13

AHistograms

Camera histograms are intended as a guide only and may differ from those displayed in imaging applications. Some sample histograms are shown below:

If the image contains objects with a wide range of brightnesses, the distribution of tones will be relatively even.

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

If the image is bright, tone 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 photographs in the monitor.

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