Absorbing 1 stop, of light this filter helps Provide a balanced exposures & better depth-of-field control. High-Trans Titanium Filters have very high transmissive properties utilizing multicoatings & a Titanium oxide component. These filters are mounted in a light weight metal ring with a matte black anti reflective inner ring & a Titanium finnish outer ring to identify the titanium oxide componenet in the filter. The new coatings for this filter increases hardness & reduces the suceptibility to smearing.