Pentax K-7 Operating Manual page 98

Images can be magnified up to 32 times in Playback mode.
I
Use the four-way controller ( • • )
to select an image in Playback
mode.
2
Turn the rear e-dial (;,,_,,:) to the
right (toward 0.).
The image enlarges at each click (1.2 times
to 32 times).
Available operations
Four-way controller (A • • 1_) Moves area to enlarge.
Rear e-dial (',,,'_,,:) to the right (O,)/ Enlarges image (up to 32 times)
[] button
Rear e-dial (',,,'_,,:) to the left ([])/ Reduces image (up to 1.2 times*)
(_ (Green) button
OK button Returns to the original size
Front e-dial (:_,,) Retains the magnification and the
position of the magnification area
and shows previous/next image
INFO button Switches information display On/
Off
* The default setting for the first click (minimum magnification) is 1.2 times. You can
change this in [Playback Display Method] in [i-¢q Playback 1] menu. (p.215)