How Aperture Priority (Av) mode works on the EOS 1D Mark II, EOS 1D Mark II N, and EOS 1Ds Mark II.

Article ID: ART158279 | Date published: 06/09/2015 | Date last updated: 08/18/2015
 

Description

How Aperture Priority (Av) mode works on the EOS 1D Mark II, EOS 1D Mark II N, and EOS 1Ds Mark II.

Solution

In this mode, you set the desired aperture and the camera sets the shutter speed automatically to suit the subject brightness. This is called aperture-priority AE.

A larger aperture (lower f/number) will result in a blurred background ideal for portraits. The lower the f/number, the more blurred the background will become. If a smaller aperture (larger f/number) is used, the foreground and background will be in focus. The higher the f/ number, the clearer the focus will be for near and far subjects.

* Av stands for Aperture value.

With a large aperture

With a small aperture


1. Select <Av> on the LCD panel.
  • Hold down the <MODE> button and turn the <> dial to select <Av>.  Then let go of the button.

- 2. Set the desired aperture value.
  • Look at the top LCD panel and turn the <> dial.
- 3. Focus the subject.
  • Press the top LCD panel and turn the <> dial.
4. Check the viewfinder display and shoot.
  • As long as the shutter speed is not blinking, the exposure will be correct.

  • If the "30"" shutter speed blinks, it indicates underexposure. Turn the <> dial to set a larger aperture (smaller f/number) until the shutter speed stops blinking. Or increase the ISO speed.

  • If the "8000" shutter speed blinks, it indicates overexposure. Turn the <> dial to set a smaller aperture (larger f/number) until the aperture stops blinking. Or decrease the ISO speed.
Aperture Value Display

The larger the f/number, the smaller the aperture opening will be. The aperture values displayed will differ depending on the lens. If no lens is attached to the camera, "00" will be displayed for the aperture value.

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