Canon Camera Hackers Manual page 176

t Specifies the duration (in seconds) for video sequences or time series
when the camera is switched to video or series mode.
u This parameter is used for focus control:
–1 = Prefocus before motion is detected using autofocus ( AF).
0 = Use autofocus immediately before each shot that is taken.
>0 = Prefocus with a fixed distance before motion is detected. u specifies
the distance in centimeters. This can be used in combination with most
scene programs. Please note that cameras with manual focus mode must
first be switched to this mode when using focusing by distance.
This parameter is used for backlight control:
z
0 = The display backlight is completely switched off.
1 = Backlight is switched off but is illuminated again after a shot for
image review.
2 = Backlight remains switched on.
We have also added an additional value option to parameter f (threshold
or sensitivity). If f is negative, the threshold will be dynamically derived
from the brightness value measured by the camera. Even then it is possible
to influence how the threshold is derived from the brightness value: the
more negative f is, the smaller the threshold will be, and the more sensitiv-
ity motion detection will register.
--[[
@title Motion detection
@param s *Test(0=test,1=real)
@default s 1
@param v *Pause(s)(-1=DISP)
@default v 0
rem Only for program >Parameters<
@param a # columns
@default a 4
@param b # rows
@default b 4
@param c Channel(0U,1Y,2V,3R,4G,5B)
@default c 1
@param d Timeout(s)
@default d 55
@param e Detection interval(ms)
@default e 1
@param f Threshold(0-255, <0=auto)
@default f -1
@param i Mask(0=no 1=in 2=ex)
@default i 1
@param j First col mask
5.7 Example scripts
167