The IXUS 177 has a better sensor type than most digital cameras that were released in the last year. This camera has a CCD sensor type, whereas most compact camera digital cameras that came out around the same time as it have a MOS sensor type. CCD sensors produce high quality, low-noise images but consume a lot more power than CMOS sensors. CCD is the most common image sensor type used in digital cameras.
A CCD sensor type is actually the best sensor type amongst all compact camera digital cameras that have been on the market for a comparable time to the IXUS 177.
Amongst comparable types of digital camera the worst sensor type is MOS.
We think you might also be interested in some of the alternative digital cameras that have a CCD sensor currently available including the Samsung MV800[plb_3153818_price] which has better reviews.