Why holomorphic? Because a spherical lens surface parametrised as z(x,y) is holomorphic. Then light refraction according to Snell's law also gives holomorphic funktions for the rays. All this if course has a finite convergence radius.
Aspherical corrections are usually even polynomials and hence keep the lens surface holomorphic. Of course a random lens surface (Flaschenboden) is not holomorphic let alone rotationally symmetric. Now my point is not to throw out parameters a and c. Leave them in for backward compability. My query is to add two more odd terms. My prediction is that CP errors will go down significantly. Fine-tuned CPs are good to about 1/10th of a pixel. This is what I found for my cameras in the past. Best regards Klaus -- A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ --- You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. To unsubscribe from this group and stop receiving emails from it, send an email to hugin-ptx+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/hugin-ptx/5dab991a-0ea0-4fec-8aee-fafc4f75f70a%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
