The point of trailing synch is usually to show movement, which means a slower synch speed than maximum flash synch. That is why the camera would have to signal the flash just before closing the 2nd curtain.
Is this making sense? -- Best regards, Bruce Sunday, January 4, 2004, 3:04:04 PM, you wrote: RC> Because the module just set the camera to synch speed when the flash RC> recycled. RC> "Billy Gates and confusers are smarter than *you*!" :) RC> ------ RC> Robert RC> ----- Original Message ----- RC> From: "Bruce Dayton" <[EMAIL PROTECTED]> RC> To: "Robert Chiasson" <[EMAIL PROTECTED]> RC> Sent: Sunday, January 04, 2004 4:25 AM RC> Subject: Re[4]: why trailing-curtain-sync is useful >> Hello Robert, >> >> How would it know how long to wait? What if the shutter was set for >> 1/15 or 1/8 or 1 second. The flash faking it would not be much of a >> trailing curtain synch now would it? Seems that the body needs to >> signal to the flash when to fire. >> >> -- >> Best regards, >> Bruce >> >> >> >> Saturday, January 3, 2004, 9:30:17 PM, you wrote: >> >> RC> The flash could be faking it, being triggered by the normal X synch, RC> but >> RC> waiting 9 milliseconds (whatever) before firing the flash. >> >> RC> ------ >> RC> Robert >> >> >> RC> ----- Original Message ----- >> RC> From: "Bruce Dayton" <[EMAIL PROTECTED]> >> RC> To: "Pat White" <[EMAIL PROTECTED]> >> RC> Sent: Saturday, January 03, 2004 8:22 PM >> RC> Subject: Re[2]: why trailing-curtain-sync is useful >> >> >> >> While it is a switch on the flash, my hunch is that the camera body is >> >> told by the flash that trailing synch is set. Otherwise the camera >> >> wouldn't know to trigger the flash at the trailing curtain instead of >> >> the first curtain. >> >> >> >> -- >> >> Best regards, >> >> Bruce >> >> >> >> >> >> >> >> Saturday, January 3, 2004, 3:16:03 PM, you wrote: >> >> >> >> PW> Maybe I'm wrong, but with modern gear, isn't trailing-curtain sync RC> a >> RC> feature >> >> PW> of the flashgun? With my Metz flash, it's a switch on the adaptor. >> RC> It'll >> >> PW> do trailing-curtain sync with the MZ-5n and the MZ-S, although RC> there's >> RC> no >> >> PW> setting on the camera for it. >> >> >> >> >> >> >>
