I assumed refraction was the issue but wondered why the calibration would be different underwater. It is light falling on the lens in both cases. Regards
Mick On 25 Feb 2009, at 16:39, Carl von Einem <ei...@gmx.de> wrote: > > Put an empty drinking glass on your kitchen table. > > Fix a laser pointer so it aims from a higher point on one side of the > glass to the table surface on the other side of the glass. Eventually > mark the spot where the laser pointer hits the table. > > Fill your glass with tap water and watch the beam being refracted (I > hope that's the right term) in a different angle when travelling from > glass through water instead glass/air. > > The same water resistant lens has different values when used in > standard > or underwater conditions. > > Carl > > michael crane wrote: >> 2009/2/25 Oskar Sander <oskar.san...@gmail.com>: >> >>> the purpose with the calibration foul be to be able to correct >>> individual images using Fulla (and maybe directly in Lightroom >>> eventually) but also to have a starting value when stitching linear >>> panoramas of wreck sites. >> >> Why does it need to be underwater to calibrate ? >> >> regards >> >> mick >> >> > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx -~----------~----~----~----~------~----~------~--~---
