I have been reading about Debbie Malone a well known psychic who is gifted in spirit photography (she is best known for helping NSW police with cold cases, missing persons and murder cases). She uses normal photographic equipment but captures some astonishing stuff.

Not sure if I'm allowed to post a link, but if you search for her site it's called between two worlds, then check out the spirit photography link.

Maybe look when it's still light...spooky!