Nice idea, Godfrey, to share those samples.
I wasn't yet very used to the A20mm on film when I switched to digital and
it became a 30mm-lens. So looking at your pics I see that my decision to go
with the 16-45 zoom as wide-angle lens was right - just for me. 16mm resp.
24mm on 35-film is just wide enough for me most of the time. No real need
for a wider lens.
BTW I've recently read an advice concerning the proposal for a minimum
travel equipment (was on trekearth if I remember right); said that a 28 or
24mm lens and a 50mm lens on the digital body might be enough for a lot of
purposes. That opinion corresponds to my experience in the alps some weeks
ago. Nothing really new, though ...
Best, Bernd