Looking at the Pentax Optio W10, you would have no idea there is anything out of the ordinary about it -- and that's a good thing. Though it has a Class 8 Waterproof rating (submersible for up to five feet for a maximum of 30 minutes of continuous use), the W10 resembles most other compact digital cameras on the market. While it's slightly thicker than competing non-waterproof models, the camera's overall dimensions make it just the right size for a travel camera -- 4.2 x 2.2 x 0.9 inches (107 x 55 x 23mm).



Link: Imaging Resource