キヤノン マウントアダプター EF-EOS R ドロップインフィルター (V-ND) 対応

The drop-in filter is the real reason I got this — being able to swap NDs without pulling the lens off is a game changer. My EF glass focuses just as fast on the R body as it did on my old DSLR.

Slapped this on my EOS R and all my old EF glass works like native, which saved me from rebuying everything. The drop-in filter slot is handy too, no more screwing ND filters onto every lens.

The built-in V-ND filter is incredibly convenient for video work—just slide it in and dial the density without screwing on extra glass. All my old EF lenses work perfectly on my R5 II now, with no loss in sharpness or autofocus speed.