PMA 2002: 09:00 EST: Canon has today announced the new PowerShot A30 and A40. The A30 and A40 update and replace last years A10 and A20. Both cameras feature a 3x optical zoom lens, the A30 has a 1.2 megapixel CCD sensor, the A40 has a 2.0 megapixel CCD sensor. Both cameras take Compact Flash Type I cards and require four AA batteries. We liked last years A20 as one of the best entry-level digital cameras, the A40 looks to be well placed this year but will face stiffer competition from other manufacturers.