I'm trying to learn how to Defish images taken with my 8mm Pro, using Hugin. I admittedly struggle with Hugin's interface anyway, but I usually can muddle my way home through panorama stitching, even if my efforts are not always successful. I did read a tutorial about it here, but from I can gather, I need to be able to enter specific data about how I want the image to turn out, and I don't really know how I am supposed to arrive at that. Is it lens specific? Does the starting aspect ratio change things? Are there any particular rules or settings I should be following? Sorry for the overly-broad questions. I don't even know enough at this point to ask the right questions.