Eric James , Mar 20, 2007; 09:35 p.m.
I shoot color transparencies so all of my lenses are modern multicoated lenses. I use all of my lenses for "landscapes", but will list them - more or less - in the order of frequency of use for that application:
90mm Nikon f8, Schneider 110mm, Fuji 300mm f8.5 C, Rodenstock 150mm Apo-Sironar-S, Fuji 240mm f9 A.
All are hard to beat on 4x5!
Of course the 90mm has the greatest depth of field and is most suitable for most "architectural" applications.