On Thursday, July 17, 2014 6:22:13 AM UTC+1, Pawel Rozenek wrote: > > > > So changing focus while shooting a panorama is not a good idea. > > I did not know about it :) >
It is not actually wrong to change focus between shots. Sometimes it is necessary in order to get the nearest and farthest features properly in focus when the depth of field is limited. However, when variable focus is used, the consequent variable fov can be properly accommodated by using individual lens parameters so that the optimizer can change the fov of individual images. Doing so with your panorama improved the optimization figures from an average of 2 and maximum of 6 to an average of 1.4 and maximum of 4. These figures don't tell the whole story, though, as I deleted the worst points in a points cleaning operation and many of these were accurately positioned but affected by parallax. Using a fixed focus setting is recommended for easier processing. > > However it means there was nothing wrong with my home made bracket on the > ball head and also I was right saying it was something strange because > the > problem used to appear far away from the nodal point - for example the > horizon was not stitched incorrectly etc etc. > There may be nothing wrong with the bracket, but the fact that there are significant parallax errors means that it is not correctly adjusted to eliminate parallax. When the images are stitched with care and attention to detail, the resulting panorama image is very good, but close inspection still shows small stitching errors that are not hidden by the blending process. > > Happy days - problem finally sorted! :) > Problems diagnosed but not necessarily sorted! > > -- > Erik Krause > http://www.erik-krause.de > > -- > A list of frequently asked questions is available at: > http://wiki.panotools.org/Hugin_FAQ > --- > You received this message because you are subscribed to a topic in the > Google Groups "hugin and other free panoramic software" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/hugin-ptx/neh7DKLYD7g/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected] <javascript:>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/hugin-ptx/53C6E5CD.2010706%40gmx.de. > For more options, visit https://groups.google.com/d/optout. > > > --- > This email is free from viruses and malware because avast! Antivirus > protection is active. > http://www.avast.com > > -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/hugin-ptx/bd3d59b0-7317-47e4-9ee3-eaf53296ce82%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
