Shutter, Step V.SCAN Random EEI OFF, Scan, Eei, Off

5. Menu screen settings (continued)

EXPOSURE screen (continued) [ ] indicates the factory setting

[ ] indicates the factory setting

Item

SHUTTER

SPEED When “STEP” is selected

SPEED When “V.SCAN” is selected

SPEED When “RANDON” is selected

Set Value

4s 2s 1s 1/2s 1/4s [1/8s] 1/15s 1/30s 1/60s 1/125s 1/250s 1/500s 1/1000s 1/2000s

3.990s • [1/7.501s] • • 1/5906.836s

1/7.500s • [1/126.134s] • • 1/5648.193s

	Contents
Used to switch the shutter mode.
STEP:	The shutter speed can be changed with the
V. SCAN:	[SPEED] item.
V. SCAN:	The shutter speed can be changed with the
	[SPEED] item.
	Enables more detailed setting than [STEP].
RANDOM: Used to synchronize the CCD accumulation
	timing with the Trigger input.
	The shutter speed can be changed with the
EEI:	[SPEED] item.
EEI:	Used to automatically change the shutter
	speed in accordance with the brightness of the
	subject.
OFF:	Fixed at 1/7.5 s.
The shutter speed can be changed when SHUTTER is
set to “STEP”, “V.SCAN” or “RANDOM”.
MEMO

•When the shutter speed is slower than 1/7.5 s, the following phenomena may occur.

1)The screen update rate becomes longer in the case of digital output.

2)The displayed image will appear intermittently in the case of analog output.

3)Time will be required for the auto white, auto iris and ALC operations.

	If the shutter speed is set slower than 1 s, these
	operations will behave as follows.
	Auto white	:	Auto white balance function cannot be started.
	Auto iris	:	( page E23 White balance adjustment)
	Auto iris	:	Stops at the iris value at that time.
	ALC	:	Stops at the sensitivity at that time.
	To use a shutter speed slower than 1 s, use with the fol-
	lowing settings selected:
	IRIS MODE	:	MANUAL
•	GAIN	:	STEP or V.GAIN
•	There may be shortage of light when the shutter speed is
	increased. In this case, adjust the iris or sensitivity. Atten-
	tion should be paid to the picture quality when the sensi-
	tivity is raised since the image becomes coarse.

	Contents
Used to switch the sensitivity mode.
STEP:	The sensitivity can be changed with the “LEVEL”
	item.
ALC:	The sensitivity is automatically changed in ac-
	cordance with ambient brightness.
V.GAIN:	The sensitivity can be changed in detail with
	the “LEVEL” item.

Sets the maximum sensitivity of ALC, which automatically
switches the sensitivity in accordance with ambient bright-
ness.
Sets the minimum value for the shutter speed when the
shutter mode is set to “EEI”.
1/7.5s:	Set to 1/7.5s.
1s:	Set to 1s.

*When analog output is used, the monitor image will be stopping many times when the shutter speed becomes slower, so set at “1/75.s”.

E34

E35