I have just received the answer from Nital, Nikon distributor in Italy. They say that the FP function of their flash is only compatible with the Nikon bodies for which they are dedicated, and they "cannot be used" with a Srt-101.
I think so too. If you use the camera to trigger the flash, it will start when the first curtain has finished its travel. By this time, with a shutter speed faster than its flash sync. speed, the second curtain will already have started its travel.
Originally Posted by jime11
"People who say things won't work are a dime a dozen. People who figure out how to make things work are worth a fortune" - Dave Rat.
If only the flash did not pretend to have to make love with the camera and just bloody worked when the camera tells it to work, everything would work because, as far as I know, using synchronization for bulb flashes (M, FP, whatever) always makes the camera fire the flash before the first curtain begins its travel, because bulbs need a small time to ignite so they have to be fired before the camera.
It's a design "flaw" of those new "FP" flashes. They want to set themselves the camera to FP synchronization rather than X synchronization, and if the camera doesn't support FP synchronization (or doesn't have a way to tell it that it does, as is the case with old cameras) the flash will only work with the normal X synchronization method (one flash). It's also quite possible that those dedicated cameras cannot be set on FP synchronization on their own, only the flash can do it, so that one has to buy a flash of the same maker.
If only there was a way to tell the flash "trust me a long emission is what I want, and I know better" any of those flashes would emulate a bulb flash and be compatible with any shutter speed on any camera with a bulb flash synchronization.
Fascinating discussion, Guys. It seems to me that you are probably right, Diapositivo.
Originally Posted by Diapositivo
Imagine having a flash which would begin pulsing when triggered by the shutter release, and which camera is using the camera's F sync connector or setting.
Then the flash would pulse at ... say 20KHz for 1/30th of a second, or for an amount of time a little longer than the camera's so called sync speed, e.g. 1/125th (8ms), 1/60th(16.7ms), or 1/30th (33.3ms).
Again, it would be triggered by the FP sync setting, such as is available on old classic 35s, like a Nikon F or Leica M, for example.
The flash would begin firing even before the opening curtain leaves the gate, and the pulse stream would keep the flashtube illuminated until after the closing shutter finally covers the film.
Does that sound right to you? Does to me. I wonder why no product can be configured to do this.
A Certified Dinosaur
Nikons F, F2, D700, Leica M3, & Kiev 4a
I think one "just" has to substitute the thyristor switching circuit of the flashlight by a new high-frequency switching circuit.
But as with the commercially available ones the output (in the meaning of guide-number) would be low.
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Shooting with leaf shutter or cameras with high sync speed are easier than flash modding.
OM-1n: Do I need to own a Leica?
Rolleicord Va: Humble.
Holga 120GFN: Amazingly simple yet it produces outstanding negatives to print.