Canon CHDK Quick Start Manual page 27

UnderExposure threshold
Controls the sensitivity of exposure indication. 0 is less sensitive and 32 is very sensitive.
OverExposure threshold
Controls the sensitivity of exposure indication. 0 is less sensitive and 32 is very sensitive.
Restore original screen
This option only applies to Zebra Blink modes.
When exposure indicators are visible, all of the original Canon indicators are erased. When this
option is enabled, the original Canon screen items (such as exposure) are redrawn between
blinks.
Restore OSD
This option only applies to Zebra Blink modes.
When exposure indicators are visible, all of the CHDK half-shutter indicators are erased. When
this option is enabled, the CHDK half-shutter indicators (such as DOF calculator) are redrawn
between blinks.
Draw over zebra
This option applies to all Zebra modes.
When exposure indicators are visible, nothing else is displayed on the screen. This option
specifies which additional indicators will be drawn.
Histo – Only the live histogram is drawn with the exposure indicators.
OSD – The entire CHDK OSD is drawn with the exposure indicators.
Nothing – Nothing else is drawn with the exposure indicators.
RGB zebra
(overexp. Only)
Overexposed areas are indicated by the color of the channel that is overexposed. Underexposed
areas are ignored.
Black – All channels are overexposed.
Red – Red channel is overexposed.
Green – Green channel is overexposed.
Blue – Blue channel is overexposed.
Cyan – Green and blue channels are overexposed.
Magenta – Red and blue channels are overexposed.
Yellow – Red and green channels are overexposed.
[0 – 32]
[0 – 32]
Enable [
•
Enable [ ] / Disable [ ]
[Histo, OSD, Nothing]
Enable [
Solid
•
] / Disable [ ]
•
] / Disable [ ]
Zebra
25