> -----Original Message----- > From: M D Giess [mailto:[EMAIL PROTECTED] > > I have one quick question to Tom, who kindly went through > quite a bit regarding flash: > >> I understand that I can manually set the camera 2 stops > underexposed > >> and set the flash exposure to 2 stops over, > > >Well, you could do that, but your shots would have 2 stops > too much flash. > > I'm confused as to why I'd be exposing incorrectly on this - > if I deliberately ask the camera to underexpose ambient by > two stops, and after that simply ask the flash to take this > setting and add two stops to it (at least that's my > assumption of what +2 flash comp would do), wouldn't that > therefore be the correct exposure? The only way I can see > this not being the case is if the flash TTL exposure takes > absolutely no notice of the camera exposure settings, and > simply works out what it thinks is best, in which case my two > stops flash compensation would indeed be two stops > overexposure.
The compensation dial always measures compensation from the meter. In other words, the compensation isn't measured in relation to your settings, it's set in relation to what the camera sees through the lens. Basically, shifting to manual mode shifts the compensation calculation from the ambient meter to the ttl flash meter. > > I think, on the balance of it, I may just have to go with > ambient light as it's patently obvious I don't really > understand how flash works, and I'd rather have slightly > soft, grainy pictures (ISO 3200 film) than shots of drummers > looking like startled bunnies in car headlights. I think that's probably the way to go, but it couldn't hurt to experiment with flash a bit. Blow a roll or 2 in experimentation just to get a feel for how it works. tv
