f: Changing the Depth of Field

If the picture will be too dark, the “30"” (30 sec.) shutter speed display will blink. If this happens, tap to display the setting screen and then tap [Y] (or turn the <5> dial to the left) to set a lower aperture f/number or increase the ISO speed.

If the picture will be too bright, the “4000” (1/4000 sec.) shutter speed display will blink. If this happens, tap to display the setting screen and then tap [Z] (or turn the <5> dial to the right) to set a higher aperture f/number or decrease the ISO speed.

Using Speedlite 90EX

To obtain a correct flash exposure, the flash output will be set automatically to match the set aperture (autoflash exposure). The shutter speed will be set automatically between 1/200 sec. - 30 sec. to suit the scene’s brightness.

In low light, the main subject is exposed with the automatic flash, and the background is exposed with a slow shutter speed set automatically. Both the subject and background look properly exposed (automatic slow-speed flash sync). If you are handholding the camera, keep it steady to prevent camera shake. Using a tripod is recommended.

To prevent a slow shutter speed, under [A1: External Speedlite control], set [Flash sync. speed in Av mode] to [1/200-1/60 sec. auto] or [1/200 sec. (fixed)] (p.221).

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