JVC KY-F70BU Instruction Manual - Page 49

Ⅲ When the shutter mode is RANDOM • CCD accumulation is performed in sync with the FREEZE input, and this period is output as the FLASH signal. • At the same shutter speeds the delay from the FREEZE 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 diagram shown below is the timing chart for the SXGA mode, meaning that the CCD OUT and MONITOR OUT are synchronous. In the VGA mode, however, the MONITOR OUT timing is asynchronous with the CCD OUT and WEN is not output. • In the VGA mode, FREEZE input is not accepted until the FREEZE screen is completely displayed on the monitor. • Even in the SXGA mode, the FREEZE input interval is restricted as shown in Table B. Do not input at a shorter interval than the minimum interval shown in the table. B FREEZE Shutter speed A Delay [ms] B Minimum FREEZE interval [ms] 1/8s 0.203 ± 0.063 395 VD (internal) EXP (CCD accumulation period) 1/15s 0.203 ± 0.063 337 FLASH 1/30s 0.203 ± 0.063 304 1/60s 0.203 ± 0.063 287 OCD A 1/125s 0.203 ± 0.063 278 OUT 1/250s 2.953 ± 0.063 277 1/500s 4.953 ± 0.063 1/1000s 5.953 ± 0.063 1/2000s 6.453 ± 0.063 277 MONITOR 277 277 OUT WEN MEMO • If the shutter mode is set to RANDOM during the VGA DRAFT mode, it automatically switches to the VGA FINE mode, and returns to the original when the shutter mode is again set to another setting than RANDOM. • 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. E45