Sony vs Sigma blue and gray resolution measurements

Started 10 months ago | Discussions thread
Erik Magnuson
Forum ProPosts: 12,129Gear list
Gradient assumptions
In reply to xpatUSA, 10 months ago

xpatUSA wrote:

Thanks for taking the time to publish the results of what is obviously a lot of work. In the Sony above the rise of amplitude with frequency does mean that IDC is messing with the image data.

While it's hard to be sure from these crops, the Sony looks almost black in the center of the thinner blue lines.  This may have to do with the demosiacking algorithm IDC uses making assumptions how the image is changing over the "gaps" in the blue pixels for certain gradients.  Then again, it could also be due to JPEG chroma subsampling.

That would put me off if I were a Sony candidate.

I doubt you would use ever Sony IDC at default settings.

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