Announced just before PMA in February 2005, the PowerShot A520 is the replacement for the PowerShot A85, and continues the line of best-selling budget models that goes right back to early 2001 with the A10 and A20. The changes are evolutionary rather than revolutionary; a reduction in size and weight (it's 13% smaller and 20% lighter), the inclusion of a new four times optical zoom lens (the A85 had a three times), zoom-linked flash, a shift from CompactFlash to SD card for storage and a drop to two AA batteries from four.



Link: DP Review