I just bought a teleconverter lens for my Canon s3is and I cannot take a zoomed or even normal picture without it being blurry. When I zoom in on something and take a picture, it's just blurry colors. I don't use a tripod, I shouldn't even have to because I've seen users' handheld pictures taken with that lens that have turned out amazing. My f-stop is the lowest it can be (3.5) and I have no idea what to do anymore... the camera supposedly comes with built in image stabiliziation. any one have advice? 


