Archived posting to the Leica Users Group, 2010/07/23
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Phil, I think flash bulbs are ignited by the current from the battery in the gun. There's no circuitry, more than on and off. So if the flash has 9 volt batteries, say, that's the voltage going through the switch. The flash bulb is expended by the voltage passing through the filament. On Fri, Jul 23, 2010 at 3:41 PM, Philip Forrest <photo.forrest at earthlink.net > wrote: > I'm wanting to use flashbulbs with the M8 to shoot IR photos using my > 720nm opaque filter. The flashbulbs put out much more light and > further, much more IR than my strobes. This will allow me to shoot IR > handheld at 160 ISO, illuminating the subject and depending > upon background distance, leaving the background completely dark. > Effectively, turning day into night. > > The question I have is if the current of the flashbulb unit could harm > the M8. I called Leica NJ and they said they had no idea (after > researching the question for 3 days) how the current from the CEYOO > would affect the M8 since they do not have any data regarding current > in that flashbulb unit. > > Optimally, I'd like to use a CEYOO but for now and for scenes needing a > bit more light, I'm using a Graflex Graflite with #5 & #25 bulbs > synched with a pocket wizard. This is a clumsy and very large setup > though. > > My question is: can anyone out there measure the current from a CEYOO > when a flashbulb is triggered? > > Thanks all! > Phil Forrest > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > -- Regards, Sonny http://www.sonc.com http://sonc.stumbleupon.com/ Natchitoches, Louisiana USA