Nikon Capture NX2 + D800 - help!!!

Started Jul 14, 2013 | Questions thread
j_photo
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Re: Edit steps can produce better results than Quick Fix
In reply to Kaj E, Jul 21, 2013

Kaj E wrote:

j_photo wrote:

Kaj E wrote:

j_photo wrote:

Kaj E wrote:

An example of when the edit steps produce better results than Quick fix. Try to recover highlights and shadows in a file severely under or overexposed:

1)With shadow/highlight protection in quick fix.

2) With Adjust > Light > D-lighting, better quality in edit.

You will notice that d-lighting is much less prone to haloing.

Use the right tools for the job. Quick fix is as the name implies a quick way of doing adjustments, but not always the best.

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Kind regards
Kaj
http://www.pbase.com/kaj_e
WSSA member #13
It's about time we started to take photography seriously and treat it as a hobby.- Elliott Erwitt

Kaj, to be clear, the claim made by many in the Flickr group is that the exposure compensation slider, not the other quick fix adjustments, works on a larger data set than later edit steps. I've seen numerous discussions on this point. In my own experience, I do find the exp. comp. slider an important adjustment ahead of other edit steps. So maybe there is something to it. I don't know for sure.

In any RAW converter the natural workflow is initial adjustments of exposure and white balance and any other global adjustments. The exposure slider affects what you see in the histogram as does D-lighting, not the bit depth of the file or the editing steps IN CNX2. Amazing how the internet generates urban legends.

All highest quality edits in CNX2 have their specific use and are at full bit depth independently of where the steps are located in the editing interface.

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Kind regards
Kaj
http://www.pbase.com/kaj_e
WSSA member #13
It's about time we started to take photography seriously and treat it as a hobby.- Elliott Erwitt

Is there any decent documentation on this? It's something I've wanted to understand better for a while.

Capture NX2 and RAW converters like ACR operate in 16-bits. Otherwise they would not be true RAW converters that could take advantage of the RAW file bit depth.

Maybe what you are referring to is a misunderstanding. If you save a NEF or any other RAW file in a non-RAW format (even as a 16-bit tiff) without recovering lost highlights or shadows, this part of the information will be lost in the new file format.

I would recommend reading any book on digital photography and RAW conversion.

You can easily on your own check out the bit depth in a file (16 or 8-bits ) and editor by doing for instance a simple radical adjustment (for instance levels) that spreads out the tones. You will see a clear difference in combing or gaps in the 8-bit compared to a 16-bit file/editor.

http://www.sphoto.com/techinfo/histograms/histograms3.htm

For instance Photoshop Elements has a 16-bit RAW converter (A simplified ACR) whereas the editing steps are done in 8-bit only.

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Kind regards
Kaj
http://www.pbase.com/kaj_e
WSSA member #13
It's about time we started to take photography seriously and treat it as a hobby.- Elliott Erwitt

No, I'm not referring to a .tiff conversion. Thanks for the info.

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