JVC KY-F1030 manual  When the shutter mode is Random

4. Shooting a computer monitor screen (cont’d) Synchronizing flash and external trigger

To synchronize the flash with the input of an external trigger, use the [REMOTE] connector on the rear. Pin configurations of connectors (
page E12).

 When the shutter mode is other than “RANDOM” “EEI” (
page E34, SHUTTER item)

● In response to the trigger input, the KY-F1030 outputs a flash signal for the CCD accumulation

period of the next frame.

● The image shot at the moment that the FLASH signal is outputted is output as the next frame.

● In the case of digital output, output stops with shooting of this frame and the image on the

PC’s monitor will be in the FREEZE condition.

When the shutter mode is “RANDOM”

•CCD accumulation is performed in sync with the trigger input, and this period is output as the FLASH signal.

•At the same shutter speeds the delay from the trigger input to the FLASH output is almost uniform as shown in Table A below. Also, the pulse width of the FLASH output differs with the shutter speed.

•The trigger input interval is restricted as shown in Table B. Do not input at a shorter interval than the minimum interval shown in the table.

● How to cancel the FREEZE condition can be selected. (
page E40, [FRZ CANCEL] item)

● The trigger interval must be minimum 3 frames (405 msec) at a shutter speed of 1/7.5 s or

faster.

● When the FREEZE cancel mode is set to “MANUAL”, FLASH will not be output in response to

the trigger input for FREEZE cancellation.

Timing chart

Shutter	A	B
		Minimum
speed	Delay [ms]
		trigger
		interval [ms]
1/8s	0.203 ± 0.063	395
1/15s	0.203 ± 0.063	337
1/30s	0.203 ± 0.063	304
1/60s	0.203 ± 0.063	287
1/125s	0.203 ± 0.063	278
1/250s	2.953 ± 0.063	277

B

FREEZE

VD (internal)

EXP (CCD accumulation period)

FLASH

A

ANALOG

OUT

Trigger

VD (Internal)

EXP (CCD accumulation period) FLASH

Analog output

WEN

MEMO

•During output of the FLASH signal, the [FREEZE] indication will appear momentarily on the com- puter monitor. If it is preferred that the indication is not shown, set the [FRZ DISPLAY] item to “OFF”.
Page E40, [FRZ DISPLAY] item.

1/500s	4.953 ± 0.063	277
1/1000s	5.953 ± 0.063	277
1/2000s	6.453 ± 0.063	277	WEN

*	In the following situations, the FLASH signal is continuously generated in sync with the CCD
	regardless of the external trigger.
	● When [SHUTTER] on the EXPOSURE screen is set to “EEI”.
	● When [GAIN] on the EXPOSURE screen is set to “ALC”.
	● When [IRIS MODE] on the EXPOSURE screen is set to “AUTO”.
	● While AW (Auto White) is operating.
	MEMO
	• In the condition where the shutter mode is RANDOM, the image quality may deteriorate at the time of
	FREEZE as noise may be applied or white spots may appear.

E26 E27