Could fill-flash be possible at speeds over 1/125s ?
This might be a stupid question and have not tried this but have been wondering about this for a couple of weeks now and think it might be possible. Let say I was shooting my F80, a manual flash and could override the 1/125s top sync shutter speed. Shooting in sunlight with the right manual output setting on the flash enough not to overtake the ambient light would exposures turn out using faster speeds than 1/125s without the risk of half blacked out frames? It would be simillar to slow flash duration but instead of the flash as the primary light it would be just used as fill flash enough to fill in the shadows.
#1. "RE: Could fill-flash be possible at speeds over 1/125s ?" | In response to Reply # 0jnscbl Basic MemberThu 01-Mar-01 01:36 AM
The partially blacked-out frame, when using a shutterspeed higher than the maximum synch speed, is caused by the shutter covering the film, not caused by insufficient light. Whatever portion of the film that is exposed, should be exposed correctly, though. I don't know exactly what you are trying to shoot, but a reflector might help, to lighten the shadows.---scott
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#2. "RE: Could fill-flash be possible at speeds over 1/125s ?" | In response to Reply # 0Ed Basic MemberThu 01-Mar-01 03:38 AM
RY, the simple answer is no. You would indeed get blacked-out frames above the sync speed, unless you employ Nikon's FP-sync mode.
Shutters are made of 2 curtains that follow each other across the frame when an exposure is made. The top sync speed is the fastest speed the camera can attain at which the shutters will remain fully open. At this setting, a flash of light will illuminate the full frame. Above this speed, the 2nd shutter will start moving across the frame even though the first shutter has not fully reached the other side. You're getting a tiny slit of window moving across the frame. A flash of light will illuminate only that slit. Result: blacked-out frames.
Hope this helps.
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