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Filter—Hoya HMC Super UV 0 (clear)
Graphs are in nanometers. Visible light is approximately 390 - 650 nm (the human eye can see very weakly into the 700-800nm range). Graphs used by permission of Coastal Optical System.
A great source for filters at competitive prices is our trusted sponsor, B&H Photo. Get filters at B&H Photo.
I have never liked the yellow cast of the Hoya UV filters, and this graph shows why— compare to the B+W UV 010; observe how the Hoya filter “rounds off” the blue end of the spectrum near 400nm.
Hoya Ultra UV (0) Permalink
Sorry, no spectral transmission graph for the Hoya Ultra UV(0), but its characteristics are consistent with the other Hoya HMC filters.
The Hoya filters impart a yellowish cast, see this page for more.