Subject says it all, patch will be added.
Created attachment 76255 [details]
Patch to fix the problem
Git commit 70cf9beaac9996c219f988d8ae74d75dc253c0ad by Gilles Caulier.
Committed on 07/01/2013 at 11:39.
Pushed by cgilles into branch 'master'.
Apply patch #76255 from Roman I Khimov to don't pass crop factor as scale factor to lensfun.
Sixth parameter to Initialize() is actually a scale factor which has nothing
in common with crop factor. I think it's safe to assume that we want no
scaling from lensfun and thus use the value of one.
Related: bug 312764, bug 253941, bug 266204, bug 267613, bug 281783, bug 284708
M +1 -1 libs/dimg/filters/lens/lensfunfilter.cpp
Thanks a lots for your investiguations and patches around digiKam Lensfun interface.
Patch applied, thanks, closing.