Re: Determining Cirkut Angle of View

[James Young <jamiehy@xxxxxxxxxxxxxxxx>]

>Fellow Panoramic Photographers,
>
>Thanks a million for all the responses
>to my question on determining the angle
>of view for a 10" x 70" circuit panorama.
>
>Let me answer some of your questions and
>try and narrow down the possibilities.
>
>Of the two contact prints one seems wide
>angle'ish and the other seems normal'ish.
>
>The farm scenes are localized to the San
>Joaquin Valley in central California and we
>do want to try and find the exact farms but
>I was thinking that knowing how much to
>encircle the prints for a truer perspective
>of the farm yard and buildings might help us
>to more accurately recognize the true location.
>
>I am looking for figures or formulas in the
>+ or - 20 degree ballpark, not anything closer
>until we can measure the actual site (if it still
>exist!).
>
>And again thanks!
>
>Randyd

If there is something in the shot that has straight lines, like crop 
rows, you might be able to figure out a set of points that are 180 
degrees from each other. You need some kind of straight line 
reference points.
  Then you could figure out the lense. Jamie