JJC CA-EF_EFM_K Lens Mount Adapter with Drop-In Filters
The JJC CA-EF_EFM_K replaces CAN. Mount Adapter EF-EOS M, which allows you to attach CAN. EF/EF-S mount lens to the CAN. It is an upgraded version of the original adapter with a feature of adding a drop-in filter to your photographic endeavors.