"tom" <[EMAIL PROTECTED]> wrote: >Another problem with the "whole exposure" scenario (I think) is that >there would be an artificial weighting of objects on the side of the >frame that the curtains start from. In other words, the metering >wouldn't quite be center weighted since the flash would always be >turned off by the time the 2nd curtain starts.
I think that's the only real problem with "whole exposure" TTL. I would expect the flash metering to begin with the x-sync trigger. >I guess if you introduce a calculation into TTL metering, you could >get pretty accurate exposures either way. Shortening the merering time >seems more plausible as it improves the acccuracy of the meter >reading, and TTL flash metering is *very* accurate. > >Of course, this is all speculative bullshit. As opposed to most of the other messages on the PDML? <g> -- Mark Roberts Photography and writing www.robertstech.com
