Interesting thread!
A few things I like to contribute:
* No machine can fully compete with the AWB in our brains. A person
sitting under a green sunshade might get a greenish skin colour,
our brain knows about this effect and corrects for it. The
greenish skin colour might remain un noticed by us. But looking to
the picture later we see a greenish face! The question is : what
do we want in our photographes? Reallity (in the above example
greenish skin colour) or natural looking colours? I always go for
the last one meaning I have to correct in post processing.
* I remember the principle way of working of the lamps discussed:
discharges in noble gas emit UV, the UV hits special phosphor on
the glass, the phosphor emits visible light, to get white light a
mix of different phosphor is used, those different phosphors emit
different colours. In an old fashioned (non-electronic ballast)
the phosphor is excited at the mains frequency (50 or 60 times per
second) It is almost certain that the different phosphors for the
different colours do not decade their intensenty in the same
timing. So over a period of 1/50 second the colour might be white,
but if I take a picture with a faster shutter time, the colour
will depend on the excact portion of the 1/50 second that I hit.
Greetz, Jos
Christine Aguila wrote:
> LOL! But seriously, this did help clarify matters a bit for me. So,
> thanks. Cheers, Christine
>
>
> ----- Original Message -----
> From: "Doug Franklin" <[EMAIL PROTECTED]>
>
>> You're asking a two year old to interpret Kafka when you set the camera
>> to AWB.
>>
>>
>> --
>> Thanks,
>> DougF (KG4LMZ)
>>
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