Panasonic Lumix DMC-FZ200 User Manual page 121

The file opened for editing
Adjust Exposure (circled) hover mouse over the values to see screen preview
The controls all give "real time" preview on screen of the final result. Just
hover the mouse cursor over the values to see how it will look. In the
above illustration I have the mouse hovered on -1/2 adjustment value
and you can see it has adjusted the exposure compared to the original
file (above).
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