Description
The Canon EF to RF Drop-in Filter Adapter fits EF and EF-S lenses to EOS R-series cameras and adds a filter slot behind the lens. As a result, one filter can work across several lenses, whatever their front diameter. It suits run-and-gun work, where changing screw-on filters costs time.
Why a drop-in filter helps
The slot also solves a problem with lenses that can’t take a front filter. For example, the EF 11-24mm f/4L USM and TS-E 17mm f/4L can both use filters this way. Autofocus and image stabilisation keep working on lenses that offer them.
Filter options
Canon makes a Drop-in Variable ND Filter A, which covers ND3 to ND500, or about 1.5 to 9 stops. A Drop-in Circular Polarising Filter A is also available. Both filters use a dial on the adapter, so adjustments are quick on set. If neither is fitted, Canon requires a Drop-in Clear Filter A. Tell us which filter you need when booking.
Check your lens
This adapter works with EF and EF-S lenses and contains no other optics. However, it doesn’t let you fit RF lenses to EF cameras. The body also resists dust and water, which helps outdoors.
