Peter, The ambient light should be contributing almost nothing to the exposure under these circumstances. The duration of the flash exposure is 1/1000-1/20,000 sec, depending upon the exposure. X synch fires the flash at the midpoint of the shutter's exposure. So, the shutter speed should make no difference at all.
Or is there something I am missing too? Rick --- Peter Loveday <[EMAIL PROTECTED]> wrote: > Am I completely missing something, or is there no > way to set the *istD to > its X Sync speed manually? > > I recall messing with this back when I first got it, > but didn't really > pursue it because the external flash I was using was > dedicated anyway, so > it'd work itself out. > > Now that its become part of my "second kit" since > the K10D, I'm using an > older (PC connection) flash... it all works fine > (yes, I checked the trigger > voltage), I'm using it in M, set the flash and > camera to the same aperture, > but of course I can only set the *istD to 1/125. > > In theory, X Sync is 1/150... but my other options > (depending on half or > third EV setting) are 1/160 or 1/180... > > Am I being thick, or does this seem really silly? > > - Peter > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > http://www.photo.net/photos/RickW ____________________________________________________________________________________ Yahoo! Music Unlimited Access over 1 million songs. http://music.yahoo.com/unlimited -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
