It's for use with old style Focal Plane Flashbulbs. These bulbs had a relatively linear output with respect to time. The FP sync ignites the flash bulb just before the first shutter opens which allows a wide range of shutter speeds to be used for flash exposure. This is very simplified, however FP would allow the use of high shutter speeds for flash, or extended distance with slow shutter speeds.
At 12:49 AM 7/11/2002 -0700, you wrote: >hi all.. what's the thing labelled FP? it's just above the flash sync.. > >THANX!! >=p >-jar0n >- >This message is from the Pentax-Discuss Mail List. To unsubscribe, >go to http://www.pdml.net and follow the directions. Don't forget to >visit the Pentax Users' Gallery at http://pug.komkon.org . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
