- SS-HQ1 Application Notes -
Ver.1.0.0 January 7, 2005
111
10.6. AE
operation
10.6.1. Sequence of Operation
Fig 10.6-1 AE Flowchart
START
Mode selection
ME mode?
Calculation of
target exposure
Calculation of
weighted average
Backlight judgment
and compensation
calculation
Calculation of
error level
Calculation of shutter
speed and AGC gain
RETURN
Fixed shutter speed
Calculation of
subject exposure
Fixed gain
Processing is branched in modes accepting from
DIP switches or serial communication input.
Shutter speed and AGC gain are obtained
from the subject exposure.
In AE mode, the subject exposure is calculated
from the integral value of each OPD window.
A judgment regarding backlight conditions is
made based on the data from OPD, and
compensation for it is calculated.
In ME mode, fixed shutter speed and fixed gain
are selected before sending to TG and AGC.
Yes
No