Pentax 15242 Digital Camera User Manual


 
87
Shooting Functions
4
AE Lock is a function that locks the exposure (brightness) prior to taking a
picture. Use this when the subject is too small or is backlit and a proper
exposure setting cannot be obtained.
1
Assign [AE Lock] to the =/L button.
Refer to “Setting the =/L Button Operation” (p.152) for details.
2
Set the exposure, and press the
=/L button.
The camera locks the exposure at that
instant.
@ is displayed on the monitor while AE
Lock is engaged.
Press the =/L button again to
cancel AE Lock.
Locking the Exposure Before Shooting
(AE Lock)
You will hear a beep when AE Lock is activated and deactivated. The beep
can be turned off. (p.186)
AE Lock is not available in p mode.
If you want to also lock the exposure when the focus is locked, set [4. AE-L
with AF Locked] (p.72) of the [A Custom Setting 1] menu to [On].
When the shutter speed or aperture value is changed while AE Lock is
engaged in a (Manual) mode, the combination of shutter speed and aperture
value changes while the exposure remains the same. For example, when the
shutter speed is 1/125 sec. and aperture value is F4 and these settings are
locked, the aperture value automatically changes to F8 if the shutter speed
is changed to 1/30 sec.
When using a zoom lens whose maximum aperture varies depending on the
focal length, the combination of shutter speed and aperture value changes
depending on the zooming position even while AE Lock is engaged.
However, the exposure value does not change and the picture is taken at the
brightness level that was set when AE Lock was activated.