Featuring a 7.1-megapixel CCD, 3.8x optical zoom lens, image stabilization, and well-designed user interface, the Canon PowerShot SD800 IS updates the popular PowerShot line with a compact body style well suited for travel. Exposure remains under automatic control, something novices will appreciate, and the Canon SD800’s 10 pre-programmed Scene modes help with more tricky subjects. The SD800 is a very responsive camera, with low shutter lag in daylight conditions, and excellent shot-to-shot speeds…