OMG, trying to use such a powerful close-up lens will result in many, many failures because of its ultra-narrow depth of field. Edge distortion will be a problem too, and this lens is not a good match for the S3. Keep on trying by all means but also consider getting the Raynox DCR-250 or the Canon 500D. Each will give potentially far better results. The latter gives close to 1:1, can be hand held with care and focusses 12-20" away, meaning the on-camera flash is fine, although in good light I can get away without using the flash. I find it great for butterflies and dragonflies. I also have the DCR-250, and while it's a good lens, I have to work harder to get sharp pics because of the narrow field depth. Focussing range is around 4-6" and the flash is partially obscured at the closest distance.