No - I expect the light to drop off if I move the softbox back (in
fact, I rely on it) but what I was talking about is that if I move
the camera position back from head and shoulders to full length, for
instance, there seems to be a drop off, even if the subject and
backdrop is evenly illuminated. It's not something I'll lose sleep
over as I recheck the histogram anyway and I'm not enough of a geek
to start rigorously testing it so it's merely anecdotal experience.
It just puzzled me a bit.
Hot spots? I'm properly baffled I'll have you know!
Andrew Fildes
afildes@xxxxxxxxxxxxx
On 05/01/2009, at 10:39 PM, Wayne Harridge wrote:
>>
>> Answer the bloody question Dr Wayne -
>>
>
> As for your softbox example I'd guess that the light is not evenly
> distributed across the surface (it probably has a hot spot near the
> centre)
> which is probably why the intensity drops off more than you expect
> when you
> move the softbox away from the subject.
>
> ...Wayne
>
>
>
--
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/
|