Why have I chosen photographs of UFOs taken by pilots? Credibility! Unfortunately, though there have been a number of recent reports of pilots reporting UFO movements, there have been no pics taken by them from the cockpit for authentication. So I dug for more info and this is what turned up. There are more, but this would have to do for the present.

Is this incontrovertible evidence of the existence of UFOs? Or can the debunkers get to work here in an attempt to prove these sightings are nothing but hoaxes/reflections/camera malfunctions, and so on?

Photograph by RCAF pilot Childerhose over the
Canadian Rockies near Ft. MacCleod, Alberta.
Courtesy: Hypernet

Royal Canadian Air Force pilot R. J. Childerhose, while flying in a 4 plane formation at an altitude of about 11 km on 27-Aug-1956 7:20PM, saw and photographed a bright, sharply-defined disk, that was remaining stationary between the clouds.

From the pilot's report to NUFORC:
"The photo was taken by another sailplane pilot that was flying right seat in the Mooney for that purpose (ed: to take photos of the other sailplane). The object most resembled a very bright sphere, much like a mirrored ball, with a distorted area opposite from its direction of travel."

"I was on a flight over Budapest, Hungary," said the pilot, who has requested that his name be withheld until the official inquiry by the Hungarian Ministry of Defence is complete. "To my left I saw a bright metal aircraft that was the shape of a perfect disk. I was careful to film the object, not to try and chase it since it I could not match its speed. As I was flying a reconnaissance aircraft, I got the idea to film it and used our equipment."

“In summary, our analyses have suggested that an unidentified, opaque, aerial object was captured on film at a maximum distance of 10,000 feet. There are no visible means of lift or propulsion and no surface markings other than darker regions that appear to be nonrandom. This case must remain “open” until further information becomes available.”

A retired Air Force pilot presented two 35 mm. slides, showing a red saucer-like object against a background of sky and clouds. He claimed to have taken the pictures from the pilot's seat of a C-47 in flight before he retired from the Air Force. The witness' reputation is irreproachable.

The grain patterns in the northern edge of the oval image appear to be of a different character than those in the remaining parts of the field. Grains are smaller and more closely packed.

The photographic density is quite high, appearing to be nearly saturated at the northern boundary.

The northern edge of the image is abnormally sharp; much sharper, for example, than any physical feature on the coastline.

There is no evidence of light diffusion or halation that would normally be found adjacent to an image formed by a bright light source.

The light areas on the negative (i.e., the "portholes" on the positive image) appear to have the same photographic density as the surrounding water.