I too am learning. Been watching this thread. I'm a total amateur at both photography and VUE. I used to use 35-mil cameras a lot. There I learned that the standard (50 mil) lenses worked best for everyday (ie snapshot) photos, but for portraiture, it was better to use 100-150 mil, 'cos it flattened out the perspective considerably and made the photos look more realistic (to the human eye. Had to get back further from the subject tho... I never thought much about the physics/maths associated. just went with what looked good. But recently I got hold of my 1st digital cam. Now all my "knowledge" is irrelevant. It's not 35mil. It's not anything. It has a zoom lense, and I have to work with that -- I'm still struggling.... I have the same problem in VUE. Where's the datum line? I recently tried to import a .obj file into a scene (using the default cam settings). It looked distorted, perspective-wise (sorry for the bad wording there, too tired to think of another way of saying it..) It had 2 normal terrains (stretched) and 3 procedural terrains, all with default texturing. + the .obj file (which was very low poly). So I tried changing the Field Of View. Vue hung up on me (was taking 20 secs to do any change at all), so I gave up, and abandened the attempt. I don't know what went wrong. I just got totally discouraged.. (BTW, V5i, if it helps..) Cheers, Diolma