Using Ae Lock - Pentax K-R Operating Manual

Using AE Lock
When [AF/AE-L Button] in the [1_ Rec. Mode 4] menu is set to [AE
Lock] and the exposure is locked (p.120) by pressing the AF/AE-L
button in M mode, if the shutter speed or exposure value is changed,
the combination of shutter speed and aperture value changes while the
exposure value is retained.
Example) If the shutter speed is 1/125 sec. and aperture is F5.6 and
these settings are locked with the AF/AE-L button, the
aperture automatically changes to F11 if the shutter speed
is changed to 1/30 sec. with the e-dial.
Action in M Mode
You can set the function of the _) button
when the camera is set to M mode. Set
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,n [Green Button] of the [1_ Rec. Mode
4] menu. (This operation is available I E__I
_" only when [Green Button] is assigned to
the _) button. (p.197)) I shutter speed
to the I
P LINE Adjusts the aperture value and shutter speed to obtain a proper
exposure according to the Program Line. (default setting)
I I Adjusts the shutter speed while the aperture value remains I
Tv SH FT
fixed to obtain a proper exposure.
I I Adjusts the aperture value while the shutter speed remains I
Av SH FT
fixed to obtain a proper exposure.
I OFF I Disables the (_ button operation when pressed in M mode. I
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