In my move to LF, I was just pointed by someone who gained cetain limited experience with 4x5, that due to regular working apertures being quite small (around f/22), usual shutter speeds for landscape and other outdoors work are usually slow (slower then 1/20 sec) which raises the issue of even slow motion not beign able to be frozen, even though the lenses usually go as fast as in MF, i.e. up to 1/500 sec. I.e. shootign landscape with foreground tree, and there is a slight breeze moving the leafs, it would be impossible to obtain totally sharp image (including leafs). From my MF experience, most useful apertures are f/9 - f/16 and obtaining shutter speeds in the range of 1/60-1/250 isn't something rare. Is this the real case with LF ? What are average shutter speeds in 4x5 for landscape/architecture work ?