> Ctein is mainly talking about digicams. He puts a $400 top limit on
> the price and expects a published curve without a viewfinder or RAW
> file format. I think he is doomed to disappointment.
Why? What should it matter? Excuse my attitude problem, but I think
that's a copout to say that non-DSLRs are excused from published
specs.
> I think Canon publishes their curves in their white papers for
> their DSLRs, but I could be wrong.
Uh huh. Show me where.
> While I don't think Nikon publishes
> their own curve, it lets you load any custom curve you want at
> least with certain cameras. There are people who provide their
> own custom curves for nothing and many who provide them for sale.
Except, the response curves of the sensor/support chip output is NOT
published. At least Kodak DOES publish this information on their
chips.
> One thing I am not clear on is how curves entered into your raw
> converter work.
Two seperate issues. A RAW file is never RAW. The voltage-values as
retrieved from the sensor are remapped quite heavily before they are
recorded into the RAW file.
We just had this discussion a few weeks ago. My challenge to you is
to show me published response charts for ANY digital camera.
AG
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