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Forum: Pentax SLR Lens Discussion
01-03-2009, 01:31 PM
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You mentioned that you saw the PF in the high contrast areas of the scene. This is where it will manifest, no matter what the rest of the scene looks like. I've never really gotten a good handle on what causes PF. From what I've read, it isn't a normal chromatic aberration, but some sort of chromatic interference between the lens and the sensor.
Pretty much any lens can be forced to PF, given the right conditions.
I suspect that the higher the pixel density of the sensor, the more easily PF will show itself, but this is the same of any lens aberration.
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Forum: Pentax SLR Lens Discussion
01-03-2009, 11:02 AM
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I just accept that pretty much any lens can be made to show some sort of failure in some conditions.
That's what good RAW converters are for.
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