Evangelos Achillopoulos
Well-known member
hmmmm the example in the reduser article looks a lot more like sensor bloom caused by the bright light behind the subject rather than CA. If you look at his hat, there is purple fringing on both sides - typical of sensor bloom. The green pixels on the sensor are the first to overload when there is an extreme highlight. Each green pixel is surronded by two red and blue pixels. The charge of the green pixel overloads into the red and blue pixels causing the purple (magenta) fringe.
Typically, CA manifests as blue or red or sometimes purple on one side of an object and yellow or cyan on the other.
I'm not saying that that lens doesn't have CA problems, but I don't believe that is an example of it.
And then why all the other lenses doesn't bloom?... same light environment, same aperture... everything is the same in 85 @ 1,4...
All my tests has shown that I have to sell that lens... period...
Check this out...
http://www.photozone.de/nikon--nikk...zf-t-50mm-f14-review--lab-test-report?start=1
it has constant CA in all the range... and huge...
And here is the 50mm F2
http://www.photozone.de/nikon--nikk...-planar-t-50mm-f2-review--test-report?start=1
A night and day difference...
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