Pentax K-7 Operating Manual page 118

116
EV Compensation for a and M modes
For example, if the EV compensation value is set to +1.5 for a
(Hyper-manual) and M (Flash X-sync speed) modes, an
underexposure of 1.5 EV is displayed on the EV bar. If you set the
exposure value so that the V is displayed at the center of the EV bar,
the image will be captured with the compensated value.
Changing the Exposure Steps
4
Set the exposure steps in [1. EV Steps] in the
[A Custom Setting 1] menu (p.85) to
increments of 1/3 EV or 1/2 EV.
Step interval
1/3 EV
1/2 EV
Locking the Exposure Before Shooting (AE Lock)
AE lock is a function that locks the exposure prior to taking the picture. Use
this when the subject is too small or backlit and a proper exposure setting
cannot be obtained.
±0.3, ±0.7, ±1.0, ±1.3, ±1.7, ±2.0, ±2.3, ±2.7, ±3.0, ±3.3, ±3.7,
±4.0, ±4.3, ±4.7, ±5.0
±0.5, ±1.0, ±1.5, ±2.0, ±2.5, ±3.0, ±3.5, ±4.0, ±4.5, ±5.0
1. EV Steps
1 1/3 EV Steps
2 1/2 EV Steps
Exposure compensation steps
now set to 1/3 EV
Exposure setting value