https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-R-ESF-Adapters-Control-Ring-Vs-Regular-Adapter/m-p/258288#M55344 <P>The control rings are programmable. &nbsp;The new RF series of lenses all have a control ring, which is also programmable. &nbsp;The control ring on RF lenses have default programming to be an aperture control ring. &nbsp;I would want an adapter with the control ring.</P> Mon, 05 Nov 2018 04:53:54 GMT Waddizzle 2018-11-05T04:53:54Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-R-ESF-Adapters-Control-Ring-Vs-Regular-Adapter/m-p/258267#M55343 <P>I was looking at the EOS R adapters and noticed that there are 2, one with a control ring and one without. I'm&nbsp;curious to know what the difference between the 2 is and what the control ring does exactly. Is it necessary to drop another $100 on the control ring?</P> Mon, 05 Nov 2018 00:56:12 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-R-ESF-Adapters-Control-Ring-Vs-Regular-Adapter/m-p/258267#M55343 ianc 2018-11-05T00:56:12Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-R-ESF-Adapters-Control-Ring-Vs-Regular-Adapter/m-p/258288#M55344 <P>The control rings are programmable. &nbsp;The new RF series of lenses all have a control ring, which is also programmable. &nbsp;The control ring on RF lenses have default programming to be an aperture control ring. &nbsp;I would want an adapter with the control ring.</P> Mon, 05 Nov 2018 04:53:54 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-R-ESF-Adapters-Control-Ring-Vs-Regular-Adapter/m-p/258288#M55344 Waddizzle 2018-11-05T04:53:54Z