PowerShot SX40 HS Camera User Guide

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When shooting scenes lit by mercury lamps, such as night scenes, the
subject and background in the recorded image may have a green tint. You
can automatically correct the green tint when shooting (Multi-area White
Balance).
Display the menu.
z Press the n button.
Choose [Hg Lamp Corr.].
z Move the zoom lever to choose the 4 tab.
z Press the op buttons or turn the 5 dial
to choose [Hg Lamp Corr.].
Choose a setting.
z Press the qr buttons to choose [On].
z Press the n button to complete the
setting and restore the shooting screen.
X Once set, will appear on the screen.
z To turn this function off, follow the Steps
above to choose [Off].
Correcting the Green Tint from Mercury
Lamps
After shooting scenes lit by mercury lamps, you should set [Hg Lamp
Corr.] to [Off]. If left set to [On], naturally occurring green colors (not from
the effects of a mercury lamp) may be accidentally corrected.
Movies cannot be corrected.
Since you may not achieve the expected results depending on the
shooting conditions, try taking some test shots first.
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