The Casio Exilim EX-S770 is a 7.2-mega pixel camera with 3x optical zoom and 4 digital zoom. Trusted Reviews has written an excellent review on the Exilim EX-S770 and they write: “The latest model in the ultra-slim Exilim S-series, the EX-S770, is a good case in point.

It is a high-spec 7.2-megapixel ultra-compact with an f/2.7 – f/5.2, 3x optical zoom lens and a 2.8-in wide-format LCD monitor which with 230,400 pixels is one of the sharpest on the market. It has a strong all-metal body available in three different colours, and in terms of build quality and design it is a match for anything from the more popular brands. At just 17.3mm thick it is the slimmest digital camera you can buy, and by a fair margin at that. At 127g it is also one of the lightest”.

“Apart from its ultra-skinny profile and stylish appearance, the first thing that strikes you about the S770 is its blistering performance. It starts up in just over a second, which is admirably quick, but the stand-out feature is the auto focus. It has the fastest AF system I’ve ever seen in a compact camera, focusing in well under half a second even in very low light. It has a good AF illuminator that enables it to focus in total darkness at a range of at least four metres.”

“It also has a good continuous shooting performance, with a few unusual features. In normal mode it can shoot at approximately one frame every 1.5 seconds and keep it up until the memory card is full, and in high-speed mode it can fire off a burst of three shots in just over a second, both of which are good but not that unusual. However it also has a high-speed 3fps burst mode with flash, something lacking on most other cameras, and which is very useful for social snapshot photography. Flash range is 3.9m at wide angle, which is slightly above average for a compact camera.

It also has an extremely unusual mode in which it takes two shots at once, one at the normal optical zoom setting, and another with 4x digital zoom applied. I don’t like digital zoom at the best of times, but this is an application of it that I’ve never seen before”.