My wife has a SX130 and it has always written slow to the card. There is a significant difference if the image has been taken with flash. This is a very slow write. Images taken in bright light write reasonably quickly. We do have it set for the maximum image resolution.
I put a Kingston class 10 SDHC ultimate X 100X card in and this did not make much difference.
So, does anyone else have this problem? Any thoughts? Other than this the camera pleases her. We have DSLR's but she prefers the simplicity of this style.
Paul

