[pavelrub]

The “instruments” are direct visual sighting by several pilots.

It’s unclear how you’ve reached the conclusion that #2 is unlikely without knowing how widespread the use of this technology is, and in what circumstances/locations it’s being used.

Classified military technology exists and is being tested all the time, without any high-res pictures leaking.

[bob33212]

If the average persons ability to capture a photo of bigfoot or a ghost or a UFO goes up 100x I would expect the number of photos during these sightings to go up some amount. Why would bigfoot go extinct at the exact time that everyone has cameras?

I guess another theory is that aliens are pranking these people. "Hey Blart, lets go to Earth and let one guy without a camera see part of our spaceship from a distance. Everyone will think he is crazy. HAHAHA"