What exposure automation do the respective SLR cameras of the Canon A series have?
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Summary
manual mode = photographer sets shutter speed and aperture
Aperture priority / Shutter priority = photographer sets aperture; camera sets shutter speed
Shutter priority / Aperture priority = photographer sets shutter speed; camera sets aperture
Program auto = camera sets shutter speed and aperture
Detailed description of exposure modes
Manual mode
In manual mode, the photographer has full control over the camera settings. Exposure is set manually by adjusting the aperture, shutter speed, and ISO sensitivity. These settings are interdependent and affect the final result. In this mode, it is important to understand exposure values to achieve the best result. Manual mode is particularly useful in situations where the light is constant or when the photographer wants to achieve special effects.
Aperture priority / Shutter priority
In aperture priority or shutter priority mode, the photographer selects either the aperture or the shutter speed, while the camera automatically adjusts the other setting to ensure correct exposure. For example, if a large aperture is needed for shallow depth of field, the photographer selects the aperture, while the camera automatically adjusts the shutter speed. If a long exposure is needed for creative effects, the photographer selects the shutter speed, while the camera adjusts the aperture. Aperture priority is particularly useful for moving subjects or for controlling depth of field.
Shutter priority / Aperture priority
Shutter priority or aperture priority mode works similarly to aperture priority, but the photographer selects the shutter speed or the aperture and the camera automatically adjusts the other setting. For example, if a specific shutter speed is required, the photographer selects the speed, while the camera adjusts the aperture. If a specific depth of field is desired, the photographer selects the aperture, while the camera adjusts the shutter speed. Shutter priority is particularly useful in situations with high contrast or when controlling depth of field.
Program auto
In program auto mode, the camera automatically selects the optimal combination of aperture and shutter speed to achieve correct exposure. This mode is best suited for situations where the photographer has no time to make manual adjustments or when the light is constant. However, the photographer still has some adjustment options, such as exposure compensation or ISO value selection.
