From the PowerShot A620 springs the Canon PowerShot A640 and A630, both of which retain the same body design and 4X optical zoom as the A620, but with the addition of a 2.5-inch LCD monitor and an increase in resolution: the A630 to 8 megapixels, and the A640, the focus of this review, to 10 megapixels. While the exterior shape of the A640 is roughly the same as the A620, this model sports a dark-gray metallic finish with a lighter gray grip, as well as a metallic lens barrel and lens trim — the latter being removable to accept a conversion lens adapter.



Link: Megapixel