"Photographic evidence" refers to pictures or images that are used to prove or support something. It means having visual proof in the form of photographs. Full definition
Conducted surveillance of claimants and provided photographic evidence of fraud. (livecareer.com)
You may submit photographic evidence in conjunction with warranty cards, manuals, receipts, bank or credit card statements to support your proof of ownership. (onlinetravelinsurance.com.au)
There is plenty of photographic evidence for earthquake lights. (newscientist.com)