Ray, there are certainly a lot of different ways to go panoramic, aren't there! From things you have said I gather that the horizontal field of view is a key factor in your decision, perhaps even more so than the specific aspect ratio(?). Are you in the mode of trying to "go as wide as possible", or did you have a certain angular span in mind that you were wanting to capture? If you aren't sure, it might be worthwhile to take some time to think about the type of scenes you imagine photographing and see if you can imagine just how wide the horizontal field of view needs to be - literally, what horizontal angle of an actual scene you think you will typically want to span. If you don't have an existing camera system with which to compare, there are ways to measure angles in a scene using a protractor, by cutting out templates and holding them a certain distance from the eye, etc. In any event, if you can better define the horizontal coverage you think you need, then it is a simple matter to calculate what you will actually get using a specific camera/lens/film format combination. This exercise may also tell you whether a single focal length will work for you or if you need an interchangeable lens system to get different fields of view.
Last edited by Denverdad; 02-23-2014 at 06:36 PM. Click to view previous post history.