Do multi-coated filters offer a benefit over Tiffen non-coated filters?
Only to the extent that they emit about 1/10th of an f:stop more light, which is almost immeasurable. Coated filters do cut down lens flare. This can also be done just by using a lens shade. Furthermore, many multi-coated filters on the market are not coated 8-12 times as found in lenses, but usually about two times, and sometimes not even on both sides of the filter! Properly coated lenses minimize or eliminate lens flare with or without coated filters.
