With MSN-505 Super Macro/Close-Up lens attached, the camera captures an intricate tiny object like 2.5mm x 1.9mm for a frame-filling enlarged close-up image from the distance of 17mm to the object at the maximum telephoto position. You can simply "Snap On" MSN-505 Super Macro/Close-Up lens onto the lens holder, and it will be able to take macro images with minimum distortion at the maximum telephoto position of PowerShot S3 IS/S2 IS camera.