05-20-2017, 02:54 AM
I took a perfect (artificially created) distortion chart.
Then I distorted it to 7% and corrected it back (manually - not 100% accurate but good enough).
I've attached a crop 700% enlarged that illustrates the effect.
The "perfect image" does not show any grey values - just black & white, of course.
You may see that one pixel row got pretty dark (loss of edge contrast). Or in other words - loss of resolution.
It's, of course, no surprise but it clearly shows how lossy a correction of a rather "typical" MFT wide angle distortion really is there.
Then I distorted it to 7% and corrected it back (manually - not 100% accurate but good enough).
I've attached a crop 700% enlarged that illustrates the effect.
The "perfect image" does not show any grey values - just black & white, of course.
You may see that one pixel row got pretty dark (loss of edge contrast). Or in other words - loss of resolution.
It's, of course, no surprise but it clearly shows how lossy a correction of a rather "typical" MFT wide angle distortion really is there.