Toshiba CGSV90CC3 Notes on fixed mode of Random trigger shutter, Notes on long exposure, 34fps

(7) High-speed draft readout mode

By thinning out vertical lines, it can be read all effective area at high-speed frame rate. * As for CSGV90CC3 (VGA), this mode supports a fault.

	CSGV90CC3	CSGX36CC3	CSGS20CC2	CSGU15CC18
Draft mode		1/3	1/2	1/4
Readout vertical line number		254	480	300
Maximum frame rate		86 fps	34fps	46fps

(8) Image resending control

As the resending control of the image, this camera resends the packet which suffered a loss.

(9) 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 three kinds of the following.

- AE (Auto Exposure)

The brightness is adjusted automatically by the average photometry of the entire screen.

Effective range	1/20000s to Setting value of the frame rate
Effective area	Full screen
Exposure level	-1EV to +1EV (1/3EV step)

By combining this mode and AGC (ALC mode), it can follow so much to brightness change of subject. - Normal shutter

Performs exposure control via the internal synchronization signal.

PRESET setting:	1/100s, 1/250s, 1/500s, 1/1000s, 1/2000s , 1/4000, 1/10000,
	and 1/20000s
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.

Notes on fixed mode of Random trigger shutter:

-It is outside a guarantee when having set it as this mode, and a normal shutter is turned off. Please be sure to turn on a normal shutter.

Notes on long exposure:

-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.

6 D4153660A