D800 owners: D.R. question

Started May 16, 2012 | Discussions thread
Luke Kaven
Veteran MemberPosts: 4,988
re: "Yes. RAW is where the advantages are, not jpeg."
In reply to ron purdy, May 17, 2012

ron purdy wrote:

re: "Yes. RAW is where the advantages are, not jpeg."

Yes, RAW will have more DR than jpegs,. - but the HUGE difference in these tests cannot be contributed entirely to this difference between JPEG vs. RAW. Something is amiss. (.3 stops vs. 2.5 stops)

A JPG is an 8 bit representation. With the use of a tone curve, you can squeeze slightly more than 8 stops into a JPG. And that's all. JPG DR says more about the tone curve than the camera.

The RAW allows a full 14 bits of DR. That's what DxO is measuring.

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