Thanks, I just tried it, and seems that doesn't work for me:Nope. Totally free. I think there are a couple of sites that offer that service free of charge, and that's the one I used. Give it a shot.do you have to pay? When I was looking to check for my 7d m2, I couldn't find any sites where to check, and used an astronomy software to check. A bit funny.
It looks like your camera doesn't supply the necessary information.
Are you uploading RAW file or jpg ?