Ask a Question

How Aperture Priority (Av) mode works on the EOS 20D, EOS 5D, EOS 30D, and EOS 40D.

Article ID: ART160399 | Date published: 06/09/2015 | Date last updated: 11/04/2015
 

Description

How Aperture Priority (Av) mode works on the EOS 20D, EOS 5D, EOS 30D, and EOS 40D.

Solution

In this mode, you set the desired aperture value and the camera sets the shutter speed automatically to suit the subject brightness. The larger or brighter the aperture value (lower f/number) the more blurred the background will become. This effect is ideal for portraits. The smaller or darker the aperture value (higher f/number), the clearer the focus will be for near and far objects (wider depth of field).

Av is an abbreviation for Aperture value.

With a large aperture value

With a small aperture value

1. Set the Mode Dial to <Av>.
- 2. Select the desired aperture value.
  • Look at the LCD panel and turn the <> dial to set the desired aperture value.
- 3. Focus on the subject.
  • Press the shutter button down halfway.
  • The shutter speed is determined automatically.
4. Check the viewfinder display and shoot.
  • If the shutter speed is not blinking, the exposure is correct.
  • If the "" shutter speed blinks, it indicates underexposure. Turn the <> dial to set a larger aperture value until the blinking stops. Or increase the ISO speed.
  • If the "8000" shutter speed blinks, it indicates overexposure. Turn the <> dial to set a smaller aperture value (larger f/number) until the blinking stops. Or decrease the ISO speed.
Aperture Value Display

The larger the f/number, the smaller the diaphragm will be. The aperture display will differ depending on the lens. When no lens is attached to the camera, "" will be display for the aperture value.

SIMS Doc Id

0

Rate this Article
Was this article helpful?
Yes, This document is helpful
No, This document needs a clearer explanation
 
Please provide your comments