UV photography as such has the potential of making extra sharp images because shorter wavelengths are used.
Sometimes this is exactly what the photographer wants or needs, at other times it really doesn't matter or is contra productive.
This capture of the last sun rays on a snow-covered mountainside is definitively positioned in the latter class. I could either get the craggy mountain spruces in the foreground into sharp focus, or the mountain peak itself, but not both simultaneously. Light faded fast and exposures were getting very long, so I had to made a decision and choose neither alternative. The outcome was a delicate pastel-like rendition of the scenery, that prints or projects beautifully.
I frequently use this image in talks on nature photography, to demonstrate the importance of emotional content.
Nikon D40X, Baader U2 (Venus) filter, 1000 mm f/11 Reflex-Nikkor