56766Re: RAW dynamic range extraction
- Jul 13, 2013Am 13.07.2013 13:19, schrieb Jeff:
> He does not say to underexpose, quite the contrary in fact.Exactly what I say. And even more: In the wiki article I give hints on
> What he says is to overexpose in camera, then to underexpose in the Raw
> (How much you can overexpose/underexpose will vary, depending on your
> camera and the Raw convertor used).
> Thus getting more shadow detail to work with, and by using the best
> "convertor" getting the best highlight detail as well.
how much you can overexpose (in camera) before you definitely blow the
highlights, namely raw ETTR and UniWB:
ETTR is now ten years around. However, until Guillermo Luijk's article
about UniWB there was no workaround to the problem of most cameras not
showing a raw histogram. And only after Magic Lantern displaying raw
histograms, raw ETTR hint and raw zebras there is a really reliable
technique to use the full power of the sensor of widely used cameras
May be I didn't pay enough attention to best image quality in my
article. My goal was to demonstrate how to save the maximum from the raw
data into a stitchable format. Fine tuning to achieve best quality is
far better done on the stitched panorama, since only there you get the
complete impression. But hey, it's a wiki! Anyone is more than welcome
to improve the article!
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