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Extending the range of compatible lenses, the Canon Control Ring Mount Adapter EF-EOS R is a unique lens Adapter designed for attaching any EF or EF-S-mount lens to the EOS R mirrorless digital camera. Additionally, it is dust- and water-resistant, making it suitable for use in harsh weather conditions.
Canon Control Ring Mount Adapter EF-EOS R
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Canon Mount Adapter EF-EOS R – Canon Flagship Store