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With an FD lens, if you set the AE selector to Av instead of TV while the lens is away from the “A ” mark, the digital readout will show the aperture you have set on the AT dial plus the corresponding camera-selected shutter speed as in aperture priority AE along with “M” for manual aperture setting. Although you are no longer in manual override, it is possible to make an exposure correction by setting the lens aperture ring to a different aperture than that on the AT dial. Exposure will be made at the aperture set on the lens aperture ring and the camera- selected shutter speed.
Self-Timer
The self-timer is usually used either so that you can include yourself in a picture or as an alternative to a cable release for the softest possible shutter release in delicate photogra- phy, such as photomacrography and pho- tomicrography, or on other occasions when long exposures are necessary. This particular self-timer allows a time-lag of either two or ten seconds.
To use the self-timer, first make sure the film is wound and that the shutter speed is not at “B”. If the film is not wound, the self-timer will act, but the shutter will not. The self-timer will not function normally at “B”. Now set the main switch to 2 or 10. Focus and compose your picture. You may press the exposure preview switch to check the exposure. However, remember that, since the A-1 is designed to reflect any last- second changes in exposure when in an