Recent Posts

Classic Camera Review:  Canon A-1

Shot with macro reversal ring

Explanation of Shutter Modes:

The manual states that there are five automatic exposure modes in addition to Manual Override, namely:  Shutter Priority AE, Aperture Priority AE, Programmed AE, Stopped-down AE and AE Flash. These modes are controlled with the collar around the shutter release.  

Shutter Priority:  You set the preferred shutter speed, the camera chooses the aperture.

“TV” , or Time Value, is the shutter priority mode.  When the dial is set to “TV”, the dial around the shutter release changes to black and shutter speeds are visible. With the aperture ring on the lens set to “A” or the green circle, the camera chooses the appropriate aperture for correct exposure.  

Aperture Priority:  You set the preferred aperture, the camera chooses the shutter speed.

“AV” is the designation for Aperture Value (priority) mode.  When set to this mode, the aperture ring on the camera is rotated to the “A” or green circle setting.  The aperture is selected using the yellow dial around the the shutter release. This is controlled with the wheel just forward of the dial.  The camera chooses the appropriate shutter speed to make the correct exposure.

Programmed AE:  The camera chooses both shutter speed and aperture.  Rotating the wheel all the way to the left, a green “P” appears.  With that set as well as the aperture ring on the lens set to the “A” or green circle, full programmed mode is engaged.  

Stopped-down AE:  You engage the DOF preview switch, adjust aperture to your preferred depth of field, and the camera chooses the shutter speed.  This is basically Aperture Priority, but with older FL or R series lenses that require manual actuation of the aperture for metering.

AE Flash:  Used with a dedicated Speedlite unit that communicates with the body for proper flash exposure.

Manual Override:  This is simply a metered manual mode in which you control both shutter speed and aperture.  The selector dial is set to “TV”, turning the control wheel will allow you to select the preferred shutter speed.  You also adjust the aperture ring on the lens to the preferred aperture, (using the meter as a guide if you choose).