The maker lists 6 exact lens configurations against 15 EOS R body names in this EF lenses with an extender attached table. Select the complete configuration, including an extender if named. This lookup reports focus-area coverage only.
What this table measures
Percentage values describe the horizontal and vertical portion of the relevant frame where AF or the manual-focus guide can operate under the maker’s stated conditions. They do not confirm physical attachment, lens autofocus hardware, AF-C performance, video behavior or safe rear clearance. A manual-focus lens can have a focus-guide area without gaining autofocus.
How to read “Variable”
When the maker prints “Variable,” the area depends on AF area mode or subject detection. Its whole-area example is 100% horizontal × 100% vertical; one no-subject example is 90% horizontal × 100% vertical. Those examples are not a universal value for every mode.
Conditions to keep with the row
- RF-S and EF-S values on full-frame cameras refer to the APS-C 1.6x crop area.
- An area value must not be interpreted as autofocus capability for a manual-focus lens or as universal mounting compatibility.
- EF and EF-S configurations on EOS R require the appropriate adapter; retain the exact extender configuration in the row label.
For EF and EF-S configurations on EOS R, use the appropriate maker adapter and check the separate exact-pair evidence. A blank or unsupported feature cell must not be turned into an overall mounting verdict.
Continue the check
Official sources and scope
Checked for this reference on October 30, 2026. Product firmware and support lists can change; inspect the current maker page for your exact revision.