I have had this wonderful camera for 3 years now, but when I shoot brackets in (3) in raw, the first set, goes bang, bang, bang. If I try to shoot another set of brackets within 2minutes, the bracketing slows down to 15sec(1st bracket) 30sec(2ndbracket), 45 sec(3rd bracket). I am using a high speed card, and I have tried different brands, without any appreciable difference. Is this happening to yours also, or do I need to send it in for a replacement processor? Appreciate any comments would be appreciated.