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Re: Lens Calibration: A complete guide how to calibrate a le

Posted: Sun Aug 04, 2013 9:45 pm
by df
Nevermind, I just tried it and asnwered my own question. Just do it, it works.

Re: Lens Calibration: A complete guide how to calibrate a le

Posted: Sun Jan 05, 2014 5:43 pm
by sylwiusz
After reading tutorial here, then this:
http://inphotos.org/2012/03/15/adventur ... rshot-pro/
and downloading this:
http://svn.berlios.de/wsvn/lensfun/trun ... lympus.xml
I finally managed to do a good, working correction profile for M.Zuiko 12-50/3.5-6.3 :-) Its 12mm distortion was PITA, as many other zooms in micro 4/3 (they rely mostly on software correction). And conclusion - you can simply pull neccessary a/b/c lens correction data from this open source software and add it at will to AfterShot profiles. The list of corrected lenses is very long:
http://wilson.bronger.org/lensfun_coverage.html
And of course in case someone wants calibration data in AfterShot ready text format, I can send it via PM :-)

Re: Lens Calibration: A complete guide how to calibrate a le

Posted: Fri Feb 14, 2014 7:23 am
by nex4
Thanks for the useful tips. I have a Sony NEX and 16-50mm kit lens:

http://svn.berlios.de/wsvn/lensfun/trun ... l-sony.xml

I see there is "distortion model", "tca model" and "vignetting model". How can I translate them into AfterShot Pro parameters?

I tried feeding the "distortion model" model into a/b/c numbers. The result looks very different from OOC JPEG w/ distortion correction. I wonder what I can do to tune it? If possible, can you provide me with the ASP ready text format? Thanks!