Flashbulbs
Edit Read more: Glossary, Flash
Edited by U. kulick
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Flashbulbs took longer to achieve full brightness and burned for a longer duration than electronic flashes, and slower shutter speeds (typically from 1/10 to 1/50 of a second) were used on cameras to ensure proper synchronization.
Flashbulbs - A special flashbulb that can be used at certain shutter speeds is called "FP" where the initials stand for Focal Plane.
Flashbulbs use magnesium foil that burns when triggered by an internal electrically fired squib. They usually burn for about 1/30 of a second and take a little while to reach full brightness.
Clear flashbulbs (now obsolete)
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Typical average daylight, electronic flash ...
Standard flashbulbs (designed for "M" [20ms to peak output] and "F" [5ms to peak output] synchronization) did not have a long enough peak light output for the "FP" sync even though the duration of their light output is very long compared to an ...
Meggaflash Technologies: Manufacturer of photographic flashbulbs for high speed photography, large format and special effects.
Sync cords: Manufacturer of heavy duty "Sync Cords" ...
All electronic flash units require X sync, but flashbulbs require a time delay between firing the flash and opening the camera shutter.
I didn't have any strobe arms to go with it, and the beam was pretty narrow, but at least it was better than flashbulbs. About that time I began hearing about another kid on the island who was doing some really nice underwater photography.
“If I’m after a really big image of a large passage I’ll use the flashbulbs favoured by press photographers, which are full of magnesium wire.
The flashbulbs illuminate the scene during image capture creating thin slivers of shadow along the depth discontinuities.
This article only covers electronic flash. Flashbulbs are a little different; read about them specifically if you want to use them (though they're rare, normally impractical, and best saved as collector items now).
Flash synchronisation that was once used with focal plane flashbulbs.
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 See also: Flashbulb, Flash, Light, Camera, Photography
  
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