Am Monday, September 29, 2008 um 0:21 schrieb Steeve: > I have been using Hugin for years with a canon 18-55mm lense, which > needed about 12 frames for a complete circle, and now use a canon > 10-22mm lense, which needs about eight frames. > > Especially with the new lense I found find the resulting panorama > 'buckled' slightly into a wave..No amount of extra control points or > vertical lines will straighten it.. The solution for me appeared to > be to allow Hugin to optimise the lense's field of view parameter.
The wider a lens is the more exact the Field of View value must be. This is because the perspective distortion in the image corners is more prominent. As real focal length of a lens can differ up to 5% from the real one you can easily get 9.5mm instead of 10mm. Another reason is that lens correction changes the FoV. If your lens suffers from barrel or pincushion distortion the necessary correction might change the actual FoV more than 5%. And last but not least FoV depends on focusing distance and on aperture value - if you don't believe see this PDF: http://tinyurl.com/d29lu best regards -- Erik Krause Offenburger Str. 33 79108 Freiburg --~--~---------~--~----~------------~-------~--~----~ 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 [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/hugin-ptx -~----------~----~----~----~------~----~------~--~---
