Markus, Thanks for the suggestion. I will give those focal lengths a try.
What do you mean by i.ortho.photo is robust and hope that it converges? Shaun On Thu, Apr 10, 2008 at 12:33 PM, Markus Neteler <[EMAIL PROTECTED]> wrote: > On Thu, Apr 10, 2008 at 5:29 PM, Shaun & Melissa Busler > <[EMAIL PROTECTED]> wrote: > > Unfortunately, the focal length of the camera is not on the photo > border. > > The photo must be too old. Do you have any recommendations on what > focal > > length I should try? It was taken in 1939 for the USDA Agricultural > > Adjustment Administration. > > You could try 150mm or 305mm. In fact, i.ortho.photo is quite robust, > just try and hope that it converges. > > (and/or: Maybe someone on the PROJ4 list knows.) > > Markus >
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