On Sun, Jul 12, 2009 at 11:03:38AM +0200, AlunFoto scripsit:
> Could I bother you guys to take a look at this comparison:
> http://www.alunfoto.no/temp/flashAnomaly/flashtest.html
> 
> All shots obtained at a working distance of 2 meters, and with
> constant ambient light. The 48mm series stands quite distinctly apart.

That it does!

> Graydon and John (or others), if you still think this is rationally
> explainable by other factors than a faulty flash, please let me know.

Faulty camera?

I have zero experience with dedicated flash units, but that looks
generally a bit erratic, not just the part where the 48mm setting fries
the subject with excessive photons.

So either the flash has a problem at 48 (quench speed, just plain too
much omph, etc.) or the camera is asking for more than it needs for some
reason.

Have you tried this with a different lens?  Preferably a prime lens with
a wide max aperture?

-- Graydon

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