Almost the same size as the 310 HS, the 510 HS packs a large 12x zoom into a very small package. Reviewed very well, the 510 HS features a 12x optical zoom, 1080p HD video, and a 3.2-inch touchscreen. Be warned that the touchscreen held the camera back from being a perfect performer due to finicky and sometimes slow operation. Also note that a replacement model, the 520 HS, has been announced. Interestingly, Canon has decided to add WiFi connectivity and scale the megapixel count back to 10, a more reasonable number that will hopefully yield even better results in low light.