Canon
Canon EF-EOS R Adaptor Ring with Insertable Circular Polarizer Filter
The Canon EF-EOS R Adaptor Ring offers the functionality of the original EF-EOS R adapter while allowing the use of insertable filters. This is particularly beneficial for wide-angle lenses with large front elements, eliminating the need to position filters in front of the lens.
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Updated on May 18, 2026
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