The Canon EF-EOS R Drop-In Variable ND Mount Adapter enables EF-mount lenses to be used with RF-mount mirrorless cameras such as the EOS R and EOS RP. Key features include:

• Adapts EF / EF-S mount lenses to RF mount cameras.
• 1.5-9 Stop Drop-in Variable ND filter allows use with lenses without filter threads.
• Dust- and water-resistant.
• Maintains optical quality of lens while retaining autofocus / IS capabilities (if featured)