Pentax K-7 Operating Manual page 20

Functions of buttons, dials and levers used during shooting are noted.
S
®
@
@
@
@
®
button
Turn the rear e-dial while
pressing this button to set the
EV compensation value.
(p.115)
ISO button
Turn the rear e-dial while
pressing this button to set the
ISO sensitivity. (p.90)
Shutter release button
Press to capture images.
(p.67)
Main switch
Move to turn the power on/off
(p.56) or to preview (p.129).
Front e-dial (:'_)
Changes the settings.
® Lens unlock button
Press to detach lens. (p.53)
(Z_ _. button
Press to pop up the built-in
flash. (p.74)