The A520 (see photo below) is similiar in features and size to the A510, but has a 4.0 megapixel sensor versus 3.2 megapixels. The A520 is 13% smaller and 10% lighter than the A85, and has a SD/MMC storage slot instead of CompactFlash.
In addition, the new model has a 4x optical zoom, uses two standard AA batteries instead of four like the older A85, utilizes a new all-glass lens, has a 1.8-inch LCD screen, and is equipped with a nine-point AiAF "Smart" autofocus system with 13 shooting modes.
The Canon PowerShot A520 will ship this March and retail for US$299.99, $100 more than the PowerShot A510.
The Canon PowerShot A520
(Photo courtesy of Imaging Resource)