the ixus 400/430 are the same small size as the ixus II, so if size is the way to go, they are recommended as well
Generally, normal and even Alkaline batteries do no last in Digital cameras. The way to go would be to get some rechargable Nimh batteries
Generally, normal and even Alkaline batteries do no last in Digital cameras. The way to go would be to get some rechargable Nimh batteries