Canon EOS-3 manual Aperture-Priority AE Av You Set the Aperture, Basic Terminology Aperture

Aperture-Priority AE (Av): You Set the Aperture

2 Release your finger from the

< > button.

3 Turn the < > dial to set the desired aperture.

4 Press the shutter button halfway and focus the subject.

• The shutter speed and aperture will be displayed.

5 Check the shutter speed and take the picture.

• As long as the shutter speed is not blinking, a standard exposure will be obtained.

• If the shutter speed is less than the reciprocal of the lens focal length (i.e. 1/200 for a 200mm lens), camera shake may cause a blurred picture.

Basic Terminology 3

●Aperture

The aperture (or F-number) indicates the size of the aperture opening in the lens. The aperture displayed on the camera’s LCD panel and in the viewfinder can range anywhere from 1.0 to 91, depending on the lens attached to the camera. The larger the F-number, the smaller the aperture. And the smaller the F-number, the larger the aperture.

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