The Drop-In Clear Filter A from Canon is intended for the Canon drop-in filter mount adapter EF-EOS R. It's a simple clear protective filter which secures the rear element of the lens and internal parts of the camera body when the lens adapter is in use.\n\nFeatures: Canon Drop-In Clear Filter A\n--Clear Protective Filter\n--Designed For Canon Drop-In Mount Adapter EF-EOS R\n--Protects Rear Element of the Lens & Internal Parts\nSpecifications: Canon Drop-In Clear Filter A\n--Manufacturer: Canon\n--Condition: New\n--Warranty: 1 Year\n--Filter Type: Clear\n--Filter Factor: 1 (+0-Stop)\n--Filter Material: Glass\n--Shape: Circle\n--Weight: 83 g / 0.083 kg\nKit Content\nCanon Drop-In Clear Filter A\nUser Guide\nManufacturer Warranty