Pentax Browser 2.0 - Manual (Page 62)

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Here, you can set the PENTAX PHOTO Browser 2.0 startup settings, such
as the initial image view size, thumbnail caption viewing, and RAW file
view format.
1
Select [Options] from the [Tool] menu in the PENTAX
PHOTO Browser 2.0 window.
Alternatively, click the
icon on the Tool bar.
The [Options] dialog appears.
Changing the PENTAX PHOTO Browser 2.0
Settings