I am looking for something with a better coverage of the film area and which is also much sharper.
I am very satisfied with the "small" 6.8 Rodenstock Grandagon-N Wide Angle (WA) lenses. I have both the the 75 and the 90.
The 75 is discontinued but the 90 is still on catalog. Both are easy to find as a second-hand item.
Even if they have "only" 6 elements inside, those lenses are extremely sharp. Even if the recommended aperture is f/22, you can use them at f/16 if you do not ask for maximum coverage. Even at f/11 for a hand-held press camera with little or no movements I'm sure that they will perform very nicely.
They are really compact and the 6.8-90 grandagon-N, if I remember well, is not bigger than the classical (and long discontinued) Schneider super-angulon F/8.
The direct competitor in focal length 90 is the recent, redesigned, 6.8 "classical" Schneider super-angulon.
I know that some f/8 WA lenses in 90 mm exists in the FUji & Nikon catalogue as well...
The real question is : will those modern 6.8 / 75 or 90 mm lenses fit your camera ?
Difficult to say, the mechanical data are available either on the Schneider web site
http://www.schneider-kreuznach.com/foto/foto.htm
http://www.schneider-kreuznach.com/foto ... lassic.htm
and Schneider pdf archives
http://www.schneider-kreuznach.com/archiv/archiv.htm
for Rodenstock lenses see the Linos Rodenstock web site or for the discontinued lenses like the 75mm grandagon-N 6.8 on Paul Butzi's web site.
http://www.linos.com/pages/no_cache/hom ... 7#sid13378
http://www.butzi.net/rodenstock/rodenstock.htm
http://www.butzi.net/rodenstock/grandag ... -chart.htm
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From a historical point of view it is interesting to note that the 6.8 Angulon lens is one of the last representatives of pre-World-War-II WA lenses, with the exception of some WA Congo lenses, still on catalog.
After WW-II, nameley after the 1946 US patent by M.M Roosinov and the developments of the Wild-Aviogon and Zeiss-Biogon by Ludwig Bertele, modern LF WA lenses like the super-angulons and grandagons exhibit very large negative meniscus-shaped front and rrear elements. The new designs perform really better than the old angulon-like designs, but are much bigger & heavier. And demand large size filters. Another advantage of the 6.8 moderns design over the f/5.6 or f/4.5 is that they use smaller size filters.
In order to reduce size & weight the last developments by Schneider use aspherical lens elements (e.g; super Symmar XL 80mm). This is another story, not in the same price range...