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| p.7 #8 · Sony A7R sensor gets high scores from DxOMark |
Never seen.. Seems here some effect like to rgb pixels on the display. Cyan mixed with yellow and purple. When we
greatly increase picture we see all colors separately.
Well, it isn't... The entire effect is in your eyes (and brain) unless your monitor (laptop?) is set to some interpolation resolution. When set at the native resolution, all pixel values are perfectly identical, there's no color difference between the two stripe areas at all. They just differ in local surround, at a spatial frequency where your vision system is most sensitive to contrast (if you're looking at it on a "normal" screen at a "normal" viewing distance)
That's why I almost always check rgb numbers @ known/desired neutrals rather than trust my own perception alone. Our eyes/brain can fool us (accommodation), imo most particularly @ cast detection.
Yes, very good. All too many people "just trust" their eyes - which is perfectly fine if you're working on a controlled environment setup - monitor in a low-normal lit room to D50, no strong colors except the monitor within the peripheral view when you sit in front of the monitor.
And even then you get fooled sometimes, especially if you zoom in on an image so that it covers the entire screen surface. You adapt to local gray balance very quickly, so if there's strong colors in the image in the zoomed in area, your neutral reference gets kicked way off.
I could probably do a portrait session PP on a grayscale monochrome monitor, just working by numbers. But I realize that's kind of a not-normal mindset, coming from working with software development in visual perception for to long...