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5. Various Settings
(5-1) Operation mode
● CCD output
● Electronic shutter operation mode
Shutter mode
Shutter speed category ... High speed / low speed
(See the right schematic diagram)
● Scanning system
→ Refer to the Section 6-3 for the specific setting
method.
(!) This camera does not support the asynchronous shutter mode
for the low speed shutter operation and the partial scan mode.
No shutter
Shutter mode
Continuous shutter
Asynchronous shutter
Normal shutter
(High speed shutter)
Type of
shutter speed
Low speed shutter
Pulse width control
[Terminology] Preset shutter ············· This refers to the shutter speed setting other than those specified by the pulse
[Terminology] Pulse width control ······· This is the way of setting or controlling the shutter speed by the width of the Vinit
[Terminology] High speed shutter ······· This means the shutter of which shutter speed is shorter than 1 frame time(=1
[Terminology] Low speed shutter ······· This means the shutter of which shutter speed is longer than 1 frame time. The
(!) This camera does not support the functions of "low speed/asynchronous shutter" and "partial scan for the central area".
... Single out
(1 port output)
... No shutter / continuous
/ asynchronous
/ pulse width control
... Normal scan
Table 5-1. Description of electronic shutter operation modes
Electronic shutter is not used.
Exposure time of imaging device is equivalent to one frame time.
Exposure is continuously performed for each frame.
Repeats exposure regardless of external trigger input (Vinit).
Repetition pitch is per frame.
Electronic shutter is released each time the external trigger is input (Vinit).
The permissible shortest repetition pitch is [exposure time + 1 frame time].
Shutter, the exposure time of which is less than one frame time, is used.
The shutter speed can be set as a preset shutter speed at 9 different levels both for the continuous
shutter/asynchronous shutter mode.
(!) As for the shutter speed of the conventional FC series cameras, 8 different levels for the
asynchronous shutter mode.
The shutter, the exposure time of which is two frames or over, is used.
The shutter speed can be set as a preset shutter speed at 9 different levels.
(Note) This camera allows this setting only for the continuous shutter mode.
In case of the asynchronous shutter setting only, the shutter, shutter speed of which corresponds to the
pulse width (during L level) of the external trigger input (Vinit) , is released.
Shutter speed can be set as nH (n = 1 or larger integer number) in H (horizontal synchronous time) unit.
width control. More specifically, the shutter speed is preliminarily set by the
hypothetical shutter switch positions from "1" to "9" for the continuous shutter
operation or the asynchronous shutter operation. The shutter speed is defined in
the Table 6-1.
signal that is externally input in the asynchronous shutter mode.
vertical synchronous time). The shutter speed is set as a preset fixed length of the
9 different levels that are determined by the position of the shutter switch
(continuous shutter and asynchronous shutter).
shutter speed is set as a preset fixed length of the 9 different levels that are
determined by the position of the shutter switch (continuous shutter).
- 12 -
Electroni c shutter
operation mode
Shutter
swi tch = 0
No shutter
operation
Continuous shutter
High speed
l ow speed
shutter
shutter
Fig. 5-1 Electronic shutter operation modes
N11A27;12/37
Shutter switch = 1 to 9
Elec troni c shutter
operation
As ync hronous shutter
Hi gh speed
shutter
Preset
Pulse width
shutter
control
(Only for continuous shutter mode)
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