Keep in mind that the E300 doesn't do OTF exposure. The distance from
the flash to the subject will affect the balance and possibly the
overall exposure. The camera would have to take the autofocus reading
and use it to adjust the flash output.
For the second picture the camera would have used a shorter shutter
speed or smaller aperture to bring down the highlights which in turn
should have required more light from the flash. So perhaps the flash
setting was indeed calculated without paying attention to the -1
setting on the camera. Similarly with the third picture if the flash
ignored the camera setting, it would be over exposed.
There seems to be a strong shadow to the left of your daughter's head.
Were you using an off camera flash rather than the built in flash?
-jeff
On 11/29/06, James Royall <jamesroyall@xxxxxxxxxxx> wrote:
>
> I'm trying to figure out what the camera (E300) flash combo is doing
> in its FP TTL auto mode.
>
> http://web.mac.com/jamesroyall/iWeb/OM/Photos.html
>
> The first one was shot with no compensation, the second with -1
> exposure compensation on the camera, and the third with -1 on the
> camera and +1 on the flash. What I was expecting was that the second
> would be underexposed overall, as the exposure for the camera and the
> flash would be down a stop and that the third exposure would be
> correct but with more emphasis on the flash light source and less on
> the ambient exposure. But the second gives the best exposure (only a
> tiny patch in her hair is blown out). Looking at the stone in the
> window behind, which is taking direct light from the flash, it
> doesn't seem to vary between shots one and two. This makes me think
> that the flash is giving off the same output in shots one and two and
> effectively ignoring the overall compensation. Does this make sense?
> If so, is it TTL control of the flash during the exposure?
>
> James
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