Yes, and then I want you to tell me what delta E is represented by the difference.
Best I can do until you send me another 5DMII body (please) is tell you the dE differences from two captures of the same source. Popped camera on tripod, shot a color target twice, render, size down, load two images into ColorThink Pro, extract all colors, save out two color lists (166500 colors, very taxing on CT):
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dE Report
Number of Samples: 166500
Delta-E Formula dE2000
Overall - (166500 colors)
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Average dE: 1.63
Max dE: 44.51
Min dE: 0.00
StdDev dE: 2.62
Best 90% - (149849 colors)
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Average dE: 0.97
Max dE: 3.69
Min dE: 0.00
StdDev dE: 0.74
Worst 10% - (16651 colors)
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Average dE: 7.59
Max dE: 44.51
Min dE: 3.69
StdDev dE: 4.91
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Visually you can see this as well:
I suspect there could be SOME registration issues here (ideally I’d have a camera stand, mirror lock up etc). These two captures were shot with available Fluorescent light under my booth, that light source ALONE could be a factor.
Also, I am not arguing against the stability of the Epsons. I am fine with those. I am arguing that the instability of camera profiling as mentioned in this thread is not based on facts.
Source? Facts?