Pentax OPTIO L50 Operating Manual page 122

• The magnification ratio for Face close-up playback may differ
depending the conditions such as the size of the face recognized
when shooting.
• Press y on the Zoom/f/y button during Face close-up
playback to switch to the zoom playback; the image is displayed
at an equal or slightly larger magnification ratio. Press f on the
Zoom/f/y button to switch to the zoom playback; the image is
displayed at an equal or slightly smaller magnification ratio.
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