My Mk iii is configured to write large RAW files to the CF card and large JPEG files to the SD card. Yesterday I was happily shooting a wedding when I suddenly got an Error 02 message relative to the SD card (message states "Card cannot be accessed, Reinsert/change card or format card with camera").
I have never experienced this problem before on any of my other cameras, ever. Now two things changes since my last shoot:
1) The SD card is brand new - Sandisk 16GB Extreme 45MB/s, Class 10. It was of course formatted in the camera prior to use.
2) I updated the firmware in the Mk iii from whatever it was when I received the camera back in March (1.0.x) to the latest 1.1.3 version.
Sandisk cards are very reliable in my experience, however I accept that I may possibly have a lemon in this instance.
My other lingering doubt is whether it is the firmware update which may be related to this issue, with this specific card?
Any similar experiences or thoughts would be most welcome. Thanks in advance.