I have taken some near total darkness infrared photos with a Sigma SD14 (really like the camera even tho it’s pretty dated at 2007)
I have the camera hooked up with an interval timer, taking one minute long exposures every other minute. The bright spots are scattered in the frame, and that scattering is different (different number, position, and direction of spots) in each of the interval timed frames.
So, what am I looking at? Note the photos have been cropped, enlarged, shrunk, and brightness/contrast adjusted, but nothing else. Here’s the shots:
(Edit:) got permission denied message, so here’s the shots on my site:
Late note: this has been resolved to be stray light, in an insufficiently darkened “dark room”.