Ae Lock - Pentax 645D Operating Manual

e_kb487.book Page 49 Wednesday, December 8, 2010 9:49 AM

AE Lock

AE lock is a function that locks the exposure prior to taking the
picture.
1
Press the 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 meter operating time, even after you take your finger
off the L button.
• You will hear a beep when the L button is pressed. You can
change the setting with [Beep] in the [R1] menu.
• When the AE lock is set in a mode, you can change the shutter
speed and aperture value while maintaining the exposure value.
• AE lock is not available in p or M mode.
• When any of the following operations are performed, AE lock is
canceled.
• The L button is pressed again
• The Q button, 3 button or M button is pressed
• The mode dial is turned
• The metering mode switching lever is turned
• The lens is changed
• The lens with an aperture s position is set to the s 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 [A1] menu.
(z p.R24)
(z p.R30)
3
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