2 "facts according to Don":
1.) I'll understand all this someday.
2.) Pigs WILL fly someday. ;-)
For now in crude terms:
A RAW file is one my *ist-D ain't messed with yet.
A JPG (or TIF) is one it has.
Sometimes I want it to, sometimes I don't.
Sung to the tune:
"Sometimes I feel like a nut, Sometimes I don't!"
Works for me. ;-)
Don
> -----Original Message-----
> From: Godfrey DiGiorgi [mailto:[EMAIL PROTECTED]
> Sent: Sunday, May 22, 2005 10:37 AM
> To: [email protected]
> Subject: Re: Speaking of exposure....
>
>
> On May 22, 2005, at 3:39 AM, Paul Stenquist wrote:
> > I was trying to put it in simple terms: The firmware performs a set
> > of adjustments on the RAW data when one shoots jpeg. That will
> > serve to explain the difference in appearance for the average
> > hobbyist. Only a few people here know what a Bayer matrix
> > interpolation or a quantization space are, but I thank you for the
> > technical details.
>
> Simple terms is fine, but suggesting that the camera's exposure
> system does something different when evaluating and setting exposure
> dependent upon whether the camera is in JPEG or RAW format storage
> mode is misleading.
>
> Put simply:
> - A RAW format file contains unrendered image data.
>
> - A JPEG file contained rendered and compressed RGB image data.
>
> - Displaying the RAW data involves rendering it to RGB. A RAW and a
> JPEG file stored simultaneously from the same exposure will only look
> identical if the RAW conversion processing applied to the RAW file is
> identical to the rendering built into the JPEG file in every particular.
>
> Godfrey
>
