10.3.6 Flicker free on/off

Flicker free can be switched off to bypass the digital frame store and have the video assist output with no delay.

The typical running speed for the film camera is different to that of the video assist. e.g. the film camera runs at 24 fps and the video assist at 25 fps for PAL or 30 fps for NTSC. Without flicker processing this speed difference causes varying brightness between successive individual video images. To eliminate this so called flicker, video images are stored at the speed of the film camera into the video frame storage and recalled in the speed of the video system. This storage might cause a slight delay, which is not desirable in some time-crucial conditions, e.g. motion control or shooting of a pop video. Therefore it is possible to switch the flicker free system off. This will eliminate the delay. However, flicker will occur in this mode.

Using the Keypad

•By pressing the FF key Î the flicker free mode alters between on and off. An LED illuminates to show flicker free (FF) is set to on Aphoto.

Video-Asssist-System

97