Canon Drop-In Filter Mount Adapter EF-EOS R with Circular Polarizing Filter A

Mount Adapter – Canon EF to EOS R with Drop in Circular Polarizing Filter A.  Adapt almost all EF lenses to an EOS R body – Plus a convenient, built-in filter.  Ideal for landscape photography – Cuts down reflections from glass and water.  Darkens blue skies – Highlights the clouds.  Reduces exposure – Two stops.  Circular type polariser – Does not interfere with autofocus or TTL light metering.