On Sat, Mar 10, 2007 at 08:46:00PM +0100, Jens Bladt wrote: > So which camera program do you use for flash photography? > I have normally (PZ-1, MZ-S, '*ist D) used manual mode - setting the speed > to freeze a reasonable amount of movement . . .
Well, that's a questionable methodology when relying on flash. The effective shutter speed for anything where the flash is the main source of illumination is the duration of the flash burst (1/10,000 of a second or so), and nothing to do with the time the shutter is open. If there is significant illumination from sources other than the flash then you need to take that into account; that's when the other camera settings (shutter speed, aperture, ISO) are important. But you can't do much with shutter speed; you are constrained to use a shutter speed slower than the flash sync speed so the shutter is fully open at the time the flash fires (unless you are using a camera and flash that are capable of high-speed flash mode, of course, but that introduces a whole new set of issues to consider). I think the single recommendation I would make, if you are expecting there to be any motion blur visible in the shot, is to use trailing-curtain flash synchronisation; failing to do that yields very odd images where the motion blur appears to precede the sharply-exposed subject, rather than trailing behind it (which we have been taught to perceive as normal). -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
