I think we need to know what format you are using for you're files (Raw or JPEG), before qualifying the performance of a CF card.


On my 50D I always record full raw 15MP + 8MP Jpeg. I had a 16GB Sandisk Extreme III and could get only 10 pictures before waiting for the buffer to empty. I acquired a 32 GB Pretec 567X, but did not see any improvement.