Canon EOS R User Guide (2025-2026) The Canon EOS R User Guide (2025-2026) offers a comprehensive resource for mastering the Canon EOS R mirrorless camera, covering its advanced features and capabilities. A variety of detailed guides, including David Busch’s Canon EOS R Guide to Digital Photography and the Canon EOS R Experience by Full Stop Books, provide step-by-step instructions, visual aids, and expert tips to help users navigate the camera’s settings, autofocus, and video modes. Official resources from Canon, like the downloadable advanced user guide and support page, are also invaluable for troubleshooting and exploring the camera’s full potential. Whether you're a beginner or an experienced photographer, these resources will help you unlock the EOS R's capabilities, enabling you to capture stunning images and videos.