On Fri, Jul 10, 2009 at 10:10:23PM +0200, AlunFoto scripsit:
> You describe how I would expect the flash to function. My observation
> was that at _one_ particular zoom setting, 48mm, the output is two
> stops brighter than any other zoom setting. This also includes 58mm
> which, as you say, should produce a more concentrated beam. If there
> was any logic to this the 58mm zoom setting should have been even
> worse than 48mm, but the histogram at 58mm is perfect... :-(

If there's a step function in the output of the flash, though, and "over
48" gets stepped down and _up to_ 48 does not get stepped down, it's
quite possible that 48 would result in blown highlights while 58
wouldn't.

Why this is happening goes back to the usual "evil algorithm vs hardware
fault" question.

-- Graydon

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