This control ring feature is a useful addition when compared to the base model. By utilizing the R camera’s Menu - Customize Dials option, the user can program the dial to do exposure compensation, or change shutter speed, or change aperture, or set ISO, or change AF method, or change picture type, or change white balance, or change color temperature.
Verified purchase: Yes | Condition: New
I use both the Control Ring Mount Adapter as well as the regular EF-EOS R Adapter, and I am very happy with both. However, the former is a real help in further refining and simplifying my workflow because I use the ring to control ISO. It's great to have at my fingertips an immediate way to adjust ISO rather than changing the setting in the camera's menu. Now I can control everything using three dials: shutter speed with the camera's top/front dial, aperture with the rear dial, and ISO with the control ring.
Verified purchase: Yes | Condition: New
The EF-EOS R Control Ring adapter works perfectly for using my EF lenses on my new R5 camera. I have had no issues. The fact that I can program the ring to my working style is very helpful. My EF lenses actually work better on this camera with the adapter.
Verified purchase: Yes | Condition: New
As I age, the weight of my equipment becomes more of an issue. So I bought an EOS R with the 24-105 f/4 L kit and really like this combination. But I have a large investment in EF and EF-S lenses and this control ring adapter allows me to use them all on the EOS R. Have tried it with my 100-400 f/4.5-5.6 L, my 75-300 f/4-5.6 L, and my 10-22 f/3.5-4.5 all without issue. The 10-22 f/3.5-4.5 did not produce the results I wanted given the cropping on the R, but it did work. I just bought the 16-35 f/4 L and am anxious to try it on the R using this adapter. I have the adapter programmed to allow me to change the lens aperture, as I grew up using manual lenses with aperture control rings and this is second nature to me. This adapter was an excellent investment.
Verified purchase: No
I bought this controller to go with my new 5R. It works as described, but, after using the the 5R for a few days, I found little need for the control ring. All functions that can be programmed into the ring are readily available on the camera control buttons and knobs. Maybe I will change my mind in the future, but, I do just fine using my ef lens on the basic mount at less than half what I paid fir this one. Great build, but, overpriced.
Verified purchase: Yes | Condition: New
As a photographer it is imperative to have lightening quick access to the triangle of the 3 settings. I did not have that on my RP and it showed in most every pic I took. Since adding the control ring adapter all settings are now at my fingertips. My pictures now look exactly as my eyes see what I'm shooting. Shutter speed and aperture on dials, iso on the control ring.
Verified purchase: Yes | Condition: Pre-owned
Allows for rapid use of EF full and EFS crop lenses without losing any functionality. The ring control allows same as RF lens function to take advantage of the mirrorless R series cameras.
Verified purchase: Yes | Condition: New
It works great! I think it unbalances the cámara a little bit but it’s to be expected since it pushes the lens forward .. Other than that it works great ..Yes I recommend it, it allows me to use all my previews lenses.
Verified purchase: Yes | Condition: New
Very easy to use and works well with my Canon L lenses. Very well made and I haven't noticed any degradation in the quality of my photographs.
Verified purchase: Yes | Condition: New
Love the adapter. I can use all of my EF lenses with my EOS R5 with the added benefit of the control ring, making my EF lenses perform like native RF. It works flawlessly.
Verified purchase: Yes | Condition: New
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