Pentax K-7 Operating Manual page 108

e-dial in TAv & M Modes
You can set the functions of the front and rear e-dials in TAv and M
modes. Set in [26. e-dial in TAv & M modes] in the [C Custom
Setting 4] menu (p.86).
Settings Front e-dial (,-_-,)_ Rear e-dial (_,,_,,-')
1 Tv (Shutter Speed) Av (Aperture)
2 Av (Aperture) Tv (Shutter Speed)
Green Button in TAv & M
The aperture and shutter speed are automatically adjusted to the
appropriate exposure at the moment the ® (Green) button is pressed
in TAv and M modes. You can select an exposure adjustment
method in [28. Green Button in TAv & M] in the [C Custom Setting 4]
menu (p.86).
The aperture and shutter speed are adjusted
1 Program Line
automatically according to Program Line (p.94).
The aperture is locked and the shutter speed is
2 Tv Shift
adjusted automatically.
The shutter speed is locked and the aperture is
3 Av Shift
adjusted automatically.
4 Off Disables Green button operation.
• Shutter speed is adjusted to appropriate exposure according to
lens aperture when lens aperture is not set to the A (Auto) position.