It works, I've used the feature this way a couple of times. Ask Paul "steady" Stenquist, I believe he posted a pic recently that used that feature on the 500 for fill. A bird in a tree if I remember correctly.
Don > -----Original Message----- > From: Jos from Holland [mailto:[EMAIL PROTECTED] > Sent: Sunday, June 19, 2005 1:16 PM > To: [email protected] > Subject: RE: Flashgun for *istDS: Pentax 500FTZ or Sigma EF-500 DG super > > > Does that really work? > I always thought that for fill flash it does not help: > if you increase the speed to 4 times the "real" flash sync speed, the > effective flash power drops by factor 4. So overall the ratio between > available light and flashlight did not improve. > > > -----Oorspronkelijk bericht----- > > Van: Don Sanderson [mailto:[EMAIL PROTECTED] > > Verzonden: Sunday, June 19, 2005 8:03 PM > > Aan: [email protected] > > Onderwerp: RE: Flashgun for *istDS: Pentax 500FTZ or Sigma EF-500 DG > > super > > > > > > When you have bright ambient light, or motion, that requires a high > > shutter speed, but also need fill flash. > > Very handy. > > > > Don > > > > > -----Original Message----- > > > From: Jos from Holland [mailto:[EMAIL PROTECTED] > > > Sent: Sunday, June 19, 2005 12:46 PM > > > To: [email protected] > > > Subject: RE: Flashgun for *istDS: Pentax 500FTZ or Sigma > EF-500 DG super > > > > > High speed sync, in which situation can this be of benefit? > > > > > > > > Jos > > > >

