NEW Canon EF to EOS R Mount Adapter with Drop-In Variable ND Filter A Adapts EF and EF-S lenses to the Canon EOS R camera. Maintain AF and image stabilisation systems. Compatible with drop-inneutral density filters. Canon EF to EOS R Mount Adapter with Drop-In Variable ND Filter A Keep using your EF and EF-S lenses with theCanon EOS R camera (now succeeded). Maintain AF and image stabilisation systems. Compatible with drop-in circular polarizing filters.