back in a long time ago, might have been 1999, in Sedona of course, my wife and I had our auras photographed - the "mystic" used a polaroid camera, I think mine came out green, my wife's reddish. Just a bit of fun, didn't cost to much. Nothing to take seriously
In college- 1972-3, I played with Kirlian photography. At the time the "aura" was thought to be related to psychic powers in plants.
I remember getting some really odd looking images, but nothing proving magical psychic powers.
Long time ago when we were working on the FW for the Kodak digital camera I'd read an article that digital cameras could photograph ghosts in ways film cameras couldn't. We had a few cameras that worked well enough to take photos. I borrowed one for a night in the cemetery. Did not capture any ghosts. That pretty much ended my brief stroll into the world of the paranormal.