"A pocket-sized, 7-megapixel digital camera, the Casio Exilim EX-V7 distinguishes itself with a non-telescoping 7x optical zoom lens, sensor-shift image stabilization, and a full range of exposure controls.
The most important features on the EX-V7, in my opinion, are the sensor-shift image stabilization and the 7x f/3.4-5.3 zoom lens. The 7x optical zoom is equivalent to a 38-266mm zoom on a 35mm camera and is non-telescoping. In other words, when you turn on the camera and use the zoom, the lens doesn’t open up and protrude from the camera. This means the lens is more protected and won’t open in your pocket. The sensor-shift image stabilization system makes it easier to take pictures in low light and helps keep photos sharp when you’re using the full, 266mm equivalent, telephoto end of the zoom lens. Long focal lengths magnify any hand movement so the image stabilization is critical with a long zoom lens like the EX-V7 has." Read the very nice review here