A drop-in filter designed to be used with the Canon Drop-In Filter Mount Adapter EF-EOS R. Use this filter when no other filter effects are desired as the clear glass helps protect the interior of your camera body and the rear element of the lens while the Drop-In Filter Mount Adapter EF-EOS R is in use. Benefits A drop-in filter to fit the Filter Mount Adapter with clear glass for when no filter effect is desired Helps to protect the interior of your camera body and the rear element of the lens while the Drop-In Filter Mount Adapter EF-EOS R is in use Exterior finish matches the finish of both camera body and lens What\'s in the box Drop-In Clear Filter A Compatibility Drop-In Filter Mount Adapter EF-EOS R EOS R EOS RP