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[OM] Fill-flash (oh no, not again!)

Subject: [OM] Fill-flash (oh no, not again!)
From: Thomas Bryhn <thomas.bryhn@xxxxxxxxxx>
Date: Sun, 03 Nov 2002 20:04:05 +0100
Don't worry, I'm not going to start the debate about the F280 again. A fellow list member asked me a few days ago about using T flashes with TTL at longer speeds than 1/60. While thinking about this problem it suddenly occured to me that the flash is controlled by the body, integrating light from the flash and the ambient light, and that another body would of course pick up the light as well. It's then obvious that one camera can be used to control flash while the other makes the "real" exposure. The flash-body don't even have to use film, as long as the pressure plate is covered with something 18 0rey. This is a rather complicated way to achieve something the OM-2 has done perfectly well for decades, but manipulating the ISO-settings of the flash-camera would be a very simple way to dial in fill-in-ratios. This would of course only work for fairly long exposures where the flash-camera could be manually triggered during the exposure of the other camera, but I believe two motor drives could be added to ensure correct timing of the two cameras. During testing one would probably find that the two cameras/MDs have slightly different response time, and the slowest one would have to be used for flash control. In an ideal world world the two combinations would be exactly matched for speed, and the setup would work all the way down to 1/60 sec.

I hope this triggers an interest among the zuikoholics that have a few spare bodies and MDs lying around ;-) At the moment I can't seem to come up with a situation to put this into use and it's really frustrating to have a perfectly good solution and no matching problem. Thoughts and ideas, please?

Thomas Bryhn


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