Hi Jack,
And what of the first exposure? Does it produce identical results?
With such extreme post-processing you're really exceeding the performance limits of the system.
What do you get when processing that same raw image in a couple of other programs?
- Leigh
1st exposure is virtually identical to 2nd, maybe a touch less gray overall.
Performance limits -- exactly.
Software -- I only have Capture NX-D for the D810 files at the moment.
Here are some pics full frame downsized to 1200 px with some added comments following:
Base exposure processed out zeroed:
Plus 5 stops exposure:
Plus 5 stops and plus 2 gamma:
First comment: If I zoom in to 200% and examine process 1 closely, I see nothing untoward, not even noise at single pixel level. If I zoom to 200% on process 2, I do see evidence of single pixel noise, but they are not white dots, they process out of NX-D as dull to brighter green, but it is combined with presence of excessive noise in general, like ISO 3200 stuff. If I zoom in on process 3, then the single pixel noise does indeed appear as a mixture of gray and white dots, but then noise is so high, like for ISO 25K, I would expect nothing less.
Next comment: CaptureOne has a very excellent single-pixel noise removal option. In fact, this is such a common problem in MF capture, I have it set on as default for ALL of my processing specifically because it attacks and kills hot pixels -- I am thinking it is likely the reason why I never noticed the issue with my D800 or D800E. I am hopeful that it will work with the D810 as well, but obviously 1) I don't have a very severe problem to begin with and 2) we won't know for certain until the a C1 release comes out that will accomodate the D810 files.
So in conclusion, my "end of day" decision for me is I am NOT sending my unit in at this point in time.