Toshiba CSGU15BC18 Manuale Utente

D4153659A 

6

(6) Electronic shutter mode switching 

You can switch the shutter modes by adjusting the setting value of the command status register of the 

camera via the Gigabit Ethernet. The setting method has two kinds of the following. 
- Normal shutter 

Performs exposure control via the internal synchronization signal. 

PRESET mode   

 

1/100, 1/250, 1/500, 1/1,000, 1/2,000, 1/4,000, 1/10,000 
and 1/20,000s 

Absolute value setting 

 

Any value is set up in 32-bit floating point form within the range 
of 1/20000s to 2s 

 

- Random trigger shutter: 

Random trigger shutter can capture images at any timing using the external trigger signal and soft trigger 

input. It is effective for image input of moving objects and obtaining images of the same timing using 
multiple cameras. But there is an exposure delay time. 

The random trigger shutter of this camera can be operated in two types of mode. How to determine the 

exposure time differs depending on the mode. 

Fixed mode: 

 

 

The exposure time depends on the normal shutter speed setting. 

Pulse width mode: 

 

The exposure time depends on the pulse width. 

 

- When you set the exposure time longer than approximately 1 second, white spots and the 

unevenness in highlight portion might occasionally be observed on screen.    This phenomenon 
is due to the characteristics of the CCD image-pickup device, and do not reflect performance 
error in the pickup device or CCD Camera itself.