Shutter – Unibrain 830 User Manual
Page 29
Unibrain Fire-i 530/630/830 Operation Manual
Page 23
0
500
1000
1500
2000
2500
3000
3500
4000
0
500
1000
1500
2000
2500
3000
3500
4000
Gamma Range Table
Gamma
Value
4
5
6
7
8
9
10
11
12
13
14
Gamma
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
Gamma
Value
15
16
17
18
19
20
21
22
23
24
25
Gamma
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
3.7.
Shutter
Shutter is defined as the integration time of the incoming light where both the Manual and the Auto Shutter are
supported. The shutter range varies from 1us ~ 3600sec. For Shutter control inquiry and status register,
follow the same definition as “BRIGHTNESS”.
Shutter Speed Value & Range
1394 Shutter Value (Y)
Increment Step
Shutter Speed Time : T
Exposure Time
Range
1~500
1us
T= Y us
1us ~ 500us
501~1000
10us
T= (Y-500)*10+500 us
510us ~ 5500us
1001~1705
100us
T= (Y-1000)*100+5500 us
5.6ms ~ 76ms
1706 ~ 2399
1ms
T= (Y-1705)+76 ms
77ms ~ 770ms
2400~2902
10ms
T= (Y-2399)*10+770 ms
780ms ~ 5800ms
Gamma=2.5(25)
Gamma=1.0.(10)
Gamma=0.4(4)
4095
4095