Pentax 645D Limited Edition Operation Manual - Page 51

suogound 6ugootis AE Lock AE lock is a function that locks the exposure prior to taking the picture. Press the AE-L button. The camera locks the exposure. * is displayed on the status screen and in the viewfinder while the AE lock is engaged. Press it again to cancel the AE lock. Memo • The exposure remains in memory for between half and twice the amount of the exposure lock time, even after you take your finger off the AE-L button. • You will hear a beep when the AE-L button is pressed. You can change the setting with [Beep] in the [*11] menu. (ID p.R24) • When the AE lock is set in M mode, you can change the shutter speed and aperture value while maintaining the exposure value. • AE lock is not available in B or X mode. • When any of the following operations are performed, AE lock is canceled. • The AE-L button is pressed again • The tEl button, MENU button or INFO button is pressed • The mode dial is turned • The metering mode switching lever is turned • The lens is changed • The lens with an aperture A position is set to the A position or is switched to another position • When using a zoom lens whose maximum aperture value varies depending on the focal length, the shutter speed and aperture value change depending on the zooming position while the AE lock is engaged. However, the exposure value does not change and a picture is taken at the brightness level set by the AE lock. • Exposure can be locked when the focus is locked. Set this with [5. AE-L with AF Locked] in the [Cl] menu. ([1) p.R30) 49