Originally posted by Duncan J Murray Although here in U.K. we certainly don't use A sizes for photography -
Duncan
I use the A sizes for my prints..
There is good printer support and lots of photographic paper in A5, A4 and A3 sizes, and the aspect ratio of 1.414 is reasonably close to the ratio of 1.5 that the camera delivers, thus requiring little cropping.
There is now a good selection of frames available in the A sizes but I don't know of anyone doing off-the-shelf A3+ (13" X 19") frames here in the UK, which is a pity.
dave