I use a Leica S2 for landscape and similar work. I was in Iceland this past summer and routinely
took images up to 120 sec. I took many in the 1/30th to several second range of exposure.
I did NOT have any issues with vibration despite fierce wind on at least
one day. I didn't even use MU routinely. I have made 40x60 inch prints from these images and
stitched panos up to 96 inches long with no issues regarding focus, etc. I do NOT have leaf shutter lenses.
I do have a very sturdy gitzo tripod.
This is not to say the person asking the original question should go digital vs. film, only that I politely
disagree with the person who stated you couldn't use the S2 effectively. It definitely works for me.
I have the images posted on my website, although of course, being the web, they are merely reduced jps.www.rudlinfineart.com-