Aperture Priority Auto Exposure (A, AV)

Aperture Priority Auto Exposure (A, AV) is a good alternative to the fully automatic mode and allows the user to adjust important settings. This mode is primarily used to adjust the depth of field.

Use

  • For some photographers the aperture priority auto exposure (AV) is also an alternative to fully automatic
  • Camera settings must be checked
  • This mode is used primarily to adjust depth of field – often to check to the depth of field in relation to the depth of field preview button
  • Especially recommended when several, consecutive images need to be checked (for just one image see program mode auto exposure and program shift).  

Use, possibilities and problems

  • In this mode, the photographer can preselect the diaphragm
  • The camera selects exposure time itself (from the options available)
  • Large f-numbers equal a great depth of field
  • Small f-numbers equal a shallow depth of field

Wichtig – Kontrolle der Kameraeinstellungen

  • Pay attention to the camera display screen
    • If the required exposure time for the correct exposure exceeds the camera’s technical settings, this is indicated in the camera’s viewfinder (dependent on type of camera and manufacturer – shutter speed usually flashes – check user’s manual!)
    • The desired diaphragm setting can potentially be achieved by changing the ISO settings (if the required exposure time for the correct exposure exceeds the camera’s technical settings, the ISO rate can be decreased or increased if the exposure time is too long)
  • Additionally, be careful as the risk of blurring is higher if the shutter speed is too fast

In this mode, just like in the program mode auto exposure, all camera settings need to be checked

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