Hi. I have a Canon A75 digital camera and I would like to connect it to a ac/dc adapter because at the moment I'm using it as a webcam. In its guide I found that its optional adapter is rated 4.3V/1.5A. While I was looking through my dc adapters/chargers I found one from my Creative Vision M rated at 5V/2.4A. I'm almost sure it's safe to connect it to my camera, but I want to be 100%. So is it?