AE-1P : How to use stopped-down metering
| Article ID: ART119937 |
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Date published: 05/12/2015 |
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Date last updated: 08/17/2015 |
Description
How to use stopped-down metering
Solution
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With a Canon FD lens, metering is down with the lens diaphragm at its widest opening. This is called "full-aperture metering"
Stopped Down Metering
With a Canon FL lens, the TS 35mm lens or any other non-FD lens, full-aperture metering is not possible. The lens must actually be closed (stopped down) to the shooting aperture for metering. This is called "stopped-down metering". In stopped-down metering, the lens diaphragm will open or close as you turn the aperture ring.
- Push the stop-down lever towards the lens until it locks
- Make sure the shutter speed selector dial is NOT on PROGRAM
- While pressing the shutter button, turn the aperture ring until the stopped-down metering and 5.6 appear. Correct exposure cannot be obtained with any other display.
- Press the shutter button all the way down for exposure.
- Stopped-down metering is not possible when the shutter speed selector dial is set to "PROGRAM"
- You can also press the exposure preview switch and turn the shutter speed selector dial until the stopped-down metering index and 5.6 appear
- Once the lens is stopped down, you can check depth of field visually simply by inspecting the subject through the viewfinder
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