This is the second field panorama I took. It is composed of 21 images taken by hand with an Olympus C-5000. I estimated the focal length to be 650 pixels with a radial distortion of 0.15. The Lukas-Kanade algorithm was run at 5 levels with 4 iterations each to obtain better accuracy. The brightness of the photo varies somewhat between shots, which creates some of the banding behavior. Click on the picture to see the full-size version. Click here to see the panoramas.
My version:
Sample version: