Am 16.07.2014 22:00, schrieb David W. Jones: > Hmm, I've never seen autofocus change magnification on my Minolta 7D. > Magnification is a function of focal length; focus is not.
...and many modern lenses change focal length while focusing (rear or inner element focusing). An extreme example is a 100mm Macro lens which at 1:1 has a near focus distance of 30cm (measured from sensor to object). Since least possible focus distance is 4 times the focal length, the focal length must be at most 75mm at 1:1. But magnification changes with object distance anyway, even in the thin lens model. See wikipedia article: http://tinyurl.com/qhqspz So changing focus while shooting a panorama is not a good idea. -- 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 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/53C6E5CD.2010706%40gmx.de. For more options, visit https://groups.google.com/d/optout.
