Lens Mount Adapter with Drop-In Filters

Replaces Canon Drop-In Filter Mount Adapter EF-EOS R;Allows a Canon EF/EF-S lens to be used on a Canon RF camera;Maintains AF and Image Stabilization;Transfers Exif Data from Lens to Camera;Allows Mounting Extra Drop-In Filters;Dust and Water-Resistant

  • Model: CA-EF_RF_K
  • Bar Code: 6950291549730
The JJC CA-EF_RF_K replaces Canon Drop-In Filter Mount Adapter EF-EOS R, which allows you to mount any Canon EF/EF-S lens onto the Canon RF mount camera body. Besides that, a Drop-In CPL Filter and a Drop-In NDV Filter (ND3-ND500) are included in the package for you to shoot with a filter conveniently; When the filters are not mounted, the Drop-In Filter Frame can be mounted to prevent dust from entering the adapter, thus protecting the camera's CCD/CMOS, and prevent light leak as well. 

Electronic communication between an attached camera and lens is supported, enabling autofocus as well as auto exposure features. The built-in IS stabilization equipped by lens is maintained, allowing you to capture sharp images. The Exif data from lens to camera can also be transferred, saving aperture, speed, and time of capture information to images or video files. Additionally, it does not affect the focusing speed of your lens.

Constructed from metal material, this adapter is sturdy and durable. The non-glare matte finish on the inside prevents reflections. The tripod foot comes with a 1/4"-20 female thread for mounting on a tripod or stand. Moreover, a front cap and a rear cap are included in the package for protecting metal contacts and preventing dust from entering the adapter.

* Canon EF/EF-S lens does not include RF lenses, EF-M lenses, or CN-E lenses (EF Cinema lenses).
* Certain restrictions may apply depending on the lens and camera in use.

Product Highlights
Replaces Canon Drop-In Filter Mount Adapter EF-EOS R
Allows a Canon EF/EF-S lens to be used on a Canon RF camera 
Supports Electronic Communication between Camera and Lens
Maintains AF and Image Stabilization
Includes Drop-In Variable Neutral Filter(ND3-500) and Circular Polarizing Filter with an integrated control ring
Transfers Exif Data from Lens to Camera
Constructed from Brass and Aluminum Alloy
Allows Mounting Extra Drop-In Filters
Dust and Water-Resistant

Package Includes
Lens Mount Adapter x 1
Drop-In CPL Filter x 1
Drop-In NDV Filter (ND3-ND500) x 1
Drop-In Filter Frame x 1
Front Cap x 1
Rear Cap x 1
Storage Pouch x 1
Instruction Manual x 1



Adapter+Drop-In Filter Frame: approx. 144g

Drop-In CPL Filter: approx. 16g

Drop-In NDV Filter (ND3-ND500): approx. 21g


Adapter+Drop-In Filter Frame: 73.4x93.5x37mm / 2.9x3.7x1.5"

Compatible Lenses

Canon EF / EF-S lenses

Compatible Cameras

Canon RF mount cameras

Front Mount

Canon EF / EF-S mount

Rear Mount

Canon RF mount

Tripod Foot

1/4"-20 tripod socket