On Sun, Jul 12, 2009 at 08:22:21PM +0200, AlunFoto scripsit:
> Well I'm glad that we agree it's not how P-TTL flash is supposed to work.

I never thought it was doing the right thing; I thought *it* might think
it was doing the right thing.  (Much like trying to let the default
metering take pictures of polar bears in snow...)

> 2009/7/12 Graydon <[email protected]>:
> > Got a spare camera body about? :)
> 
> Dusted off the old *istD. Same thing. :-(
> 
> Tested the full aperture range this time, and at flash zoom 48mm, f/22
> gives a salvageable exposure of a brick wall at 2 m distance. As I
> open up the aperture, it gets progressively overexposed. It seems that
> at 48mm, the flash abandons P-TTL and fires all the power it's got.

Here's hoping it's not supposed to do that.

> Oh- kay. Time for repair. Due to pick up the K-7 this week anyway, so
> I'll turn the flash in at the same time. :-)

That will certainly give you something to distract you from the absence
of the flash!

> Thanks for walking it through with me, Graydon.

Hey, good to find out that the hardware debugging skills generalize. :)

-- Graydon

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