Canon ドロップインフィルターマウントアダプター EF-EOS R 円偏光フィルター付き

Finally, an adapter that lets me use my old EF lenses on the new mirrorless body without losing image quality, and the built-in circular polarizer is a game-changer for landscape shots. The drop-in filter design makes swapping filters incredibly easy, and the build feels solid.

I was a bit skeptical about the drop-in filter feature, but it's actually brilliant—being able to use my EF lenses on the R body and swap the circular polarizer in seconds is incredibly convenient.

Swapping lenses with this adapter is seamless, and the built-in circular polarizer makes adjusting reflections on the fly a breeze. Being able to drop the filter in without adding extra bulk to the front of the lens is a nice touch. It’s a solid upgrade for anyone using EF glass on an EOS R body.