Lossy DNG, can anybody show me ... (HUGE FILES)

Started Jun 7, 2012 | Discussions thread
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Deorum
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Lossy DNG, can anybody show me ... (HUGE FILES)
Jun 7, 2012

...
an example over lost information, or simply a different in IQ vs original RAW?

I tried, and I even in extreme editing (pushing shadows, saturation etc) at 200% i found no difference. I could only see something, because of a slightly different noise distribution, over uniform areas. But I am talking about only a few random pixels now and there, nothing serious, and this... only under extreme manipulation.

Files opened in CS6, with 16bit, before saved in JPG in quality (80). Honestly, even in quality 100 nothing changed, i just did that to help web-speed.
Remember, we are talking not just for DNG, but for lossy DNG! Impressed!

First image is the original image, unedited image.

Then follow
RAW 100%crop +5exposure +40saturation

then the lossy DNG version

Then the full image in SHADOWS HIGHLIGHTS editing, +100 shadows +100 HIGHLIGHTS
First coming from the original RAW then coming from the edited lossy dng

RAW

LOSSY DNG

PS. Images come from 1ds2 camera.
--
George Spyros,
http://www.georgespyros.com

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