Canon 1Ds Instruction Manual - Page 104
Mirror Lockup
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Mirror Lockup Mirror lockup is enabled with C.Fn-12. (→p.136) This prevents mirror-caused vibrations which may blur the image during close-ups or when a super telephoto lens is used. To set this Custom Function, see "Setting a Custom Function" on page 132. When mirror lockup is set, the camera operates as follows. • When using mirror lockup, Remote Switch RS-80N3 (optional) is recommended. (→p.167) 1 Press the shutter button fully and release it. s The mirror locks up, and after 30 seconds, it will go back down automatically. Pressing the shutter button fully again locks up the mirror again. 2 Press the shutter button fully again to take the picture. s The picture is taken and then the mirror goes back down. • In very bright light such as at the beach or ski ground on a sunny day, take the picture promptly after mirror lockup. • During mirror lockup, do not point the camera lens at the sun. The sun's heat can scorch and damage the shutter curtains. • If you use mirror lockup with the self-timer for a bulb exposure, there will be a shutter release sound when you release the shutter button during self-timer operation. This is not the sound of the shutter release. • During mirror lockup, the drive mode will be set to single-frame shooting ( ) to override the current drive mode (single or continuous). • If mirror lockup is used with the self-timer, pressing the shutter button fully the first time will lock up the mirror and release the shutter 10 seconds or 2 seconds later (depending on the delay time selected). 104