Hi all,
It seems my previous attempt to email this list disappeared. I apologize
this shows up twice!
I have a lens (Nikon AF-S DX 16-80 mm zoom) that is not supported by lensfun,
and I thought this is the perfect opportunity to give back to the project
by contributing calibration data! I want to make sure the information I
provide is accurate and useful, so I have a few questions.
I performed distortion correction using the Hugin tool, and the results are
pretty good.
For Vignetting correction, I read Torsten's instructions here:
http://wilson.bronger.org/lens_calibration_tutorial/
How even does the even illumination need to be? If I have a suitable
diffuser, could I aim at the sky for the vignetting images? I am concerned
that if I point a standard floor lamp at the ceiling it will have a
distinct circular illumination pattern.
For TCA correction: I haven't found a good target for TCA. Does this
calibration need a regular geometry (like the buildings used for
distortion?) Or are trees against an overcast sky ok?
Any suggestions are much appreciated!
Thanks,
Owen
------------------------------------------------------------------------------
Find and fix application performance issues faster with Applications Manager
Applications Manager provides deep performance insights into multiple tiers of
your business applications. It resolves application problems quickly and
reduces your MTTR. Get your free trial!
https://ad.doubleclick.net/ddm/clk/302982198;130105516;z
_______________________________________________
Lensfun-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/lensfun-users
