On 2005-09-14 07:44, Cory Papenfuss wrote:
> RAW *is* RAW sensor data. No interpolation or other processing
> done. The "external programs" are called RAW converters and every one of
> them does the interpolation. Some better than others.
Thanks! Since I'm still analogue, I never checked RAW files up to now.
So I know very little about RAW:
- it's not a standard, but proprietary
(Sigma is open, Nikon is protected)
- it may include a jpeg preview
- it may be compressed
(while noise at higher ISO will reduce the
compressiability)
So where does the masking of defective pixels, pixel calibration, white
balancing or 'anti-vignetting' occur? Is RAW absolutely uncorrected?
Is there some kind of 'golden raw' which may be used by the processing
software in order to compensate known errors? If it's not preprocessed into
the raw output, is it included within every raw file?
Thanks,
Martin
