Circular cropping values in PTGui
Every time you have to fill in the cropping values in PTGui for circular fisheyes you always
have to start from the beginning to approximate where these values are situated.
In the following images you can see an explanation of these values in portrait and landscape
The values used are from a Canon 10D and a Sigma 8 mm Lens.
Values for landscape orientation
Values for portrait orientation
How about a table with values for all common camera and lens combinations?
Peter Nyfeler (Pitdavos)