Proof

Exposed on SFX200 semi-infrared film, 120 size, F/22 at 1 sec (filter factor of 16x with Wratten 89B gel filter) at focal length of 65mm, focus-corrected, in the early morning at Buffalo National River near Ponca, Arkansas. The river was at flood stage, and I waded a short distance into the river for about two hours, making a series of shots. Good thing my tripod is aluminum (no rust).