This is something that has puzzled me for a while and it always seems counter-intuitive. When a lens has an aperture ring with an auto position (A), it is always (at least on 3 systems that I have with such lenses) next to the smallest aperture as seen here:
Why is the A position next the smallest aperture rather than near the largest?
What this means to be is that I have to move the aperture ring a lot more than it would be necessary if it were next to F/2 rather than F/22. Also some lenses it is easy to accidentally move the ring from A to a very tiny aperture which invariably causes unexpectedly long shutter-speeds and blurry images, either from the slow speed or from motion. Personally I also never use the diffraction limited apertures so I must skip over a pretty much useless range before reaching the aperture I am looking for.