Got the right shaped histogram this time using silver efex for high contrast black and white.
my 450d is saying there is no card in it, even though there is, have tested the card and it is good, so does that mean the card slot needs cleaning or what?
It looks as though one is looking to check the traffic, and the other is just hanging out in the passenger seat. That's strange re: your card; I hope it is easily sorted.
Characters! Have you got a spare card, does it then give the same message? I had that once, saying no card and then put a different one in and then it woked. Hope you get it solved soon.