I fondly recall His Mooseness' elegant dissertation on the different algorithms
used by the converters to correct linear distortion. That was a 5/5 lens cap
post and the most thorough analysis of that topic I have ever seen.
http://lists.tako.de/html/Olympus-OM/2016-09/msg00059.html
As you know I have always railed against the empire of being bound by the OEM
metadata corrections AND they crop the image too much. Why ACR/LR could not
leave it as with Canyon where the degree of
correction is adjustable by the user, is a mystery. The DXO image unlike PTL
is a bit larger, but that is OK and at least it is adjustable. BTW, by the
time you constructed those superb roll-overs, a complete set of images
to submit for PTL could probably have been shot.
Bent out of shape too, Mike
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