--- product_id: 93966026 title: "Canon 2971C005 Bayonet adapter EF-EOS R. , black" brand: "canon" price: "£124.59" currency: GBP in_stock: true reviews_count: 13 category: "Canon" url: https://www.desertcart.co.uk/products/93966026-canon-2971c005-bayonet-adapter-ef-eos-r-black store_origin: GB region: United Kingdom --- # Weather-sealed for dust & splash resistance Seamless EF/EF-S lens compatibility Solid 110g build for stable handling Canon 2971C005 Bayonet adapter EF-EOS R. , black **Brand:** canon **Price:** £124.59 **Availability:** ✅ In Stock ## Summary > 🔗 Bridge your legacy lenses to the future of mirrorless photography! ## Quick Answers - **What is this?** Canon 2971C005 Bayonet adapter EF-EOS R. , black by canon - **How much does it cost?** £124.59 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/93966026-canon-2971c005-bayonet-adapter-ef-eos-r-black) ## Best For - canon enthusiasts ## Why This Product - Trusted canon brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rock-Solid Reliability:** Premium Canon build with a reassuring weight that ensures secure, stable mounting every time. - • **Universal Lens Freedom:** Unlock your entire EF and EF-S lens collection on EOS R bodies without compromise. - • **Complete Protection Kit:** Includes camera housing cover, lens back cover, and protective case for on-the-go peace of mind. - • **Weather-Ready Durability:** Dust and splash-proof design protects your gear in unpredictable shooting conditions. - • **Effortless Autofocus Boost:** Leverages mirrorless sensor tech for faster, sharper focusing with legacy lenses. ## Overview The Canon 2971C005 EF-EOS R Bayonet Adapter is a precision-engineered accessory that enables seamless use of Canon EF and EF-S lenses on EOS R mirrorless cameras. Featuring a robust, weather-sealed design and weighing just 110 grams, it ensures stable, reliable lens mounting while maintaining full autofocus functionality. Compatible with top-tier models like the EOS R5 and R6, it comes complete with protective covers and a case, making it an essential upgrade for professionals and enthusiasts wanting to maximize their existing lens investments. ## Description Product Description The adapters of the EOS R system allow full compatibility with the entire range of Canon EF and EF-S lenses. So owners of a camera of the Canon EOS R system can also fully integrate another EOS camera into their existing lens lineup as well. Box Contains Box contents: bayonet adapter EF-EOS R; camera housing cover R-F-3; lens back cover RF; case; user manual (English language not guaranteed) Review: Works perfectly and feels very solid - It is expensive compared to some of the third party options but this one feels very very solid and has a decent weight to it making it feel stable and secure. Fits onto the body very well and doesn't affect any functions of the lens. The older EF and EF-S lenses still focus perfectly, in fact they're a bit quicker to find focus thanks to the better sensors on mirrorless than older DSLRs the EF lenses were made for. It also is weather sealed which secures an otherwise weak point in weather sealing between the body and older lenses. Comes with a decent protective sleeve to keep it protected in a camera bag. Ideally it'd be smaller, but that is a fact of how the bodies of these camera work vs the older DSLR so this isn't a fault of the product. Review: Excellent. - Works perfectly as expected. Haven't had any issues with fit or compatibility, nice when something works so well you don't have to think about it. ## Features - Use existing lenses with EF and EF-S bayonet with a Canon EF-EOS R camera. - Built for professional use. - Box contents: bayonet adapter EF-EOS R, camera housing cover R-F-3, lens back cover RF, case, user manual (English language not assuranced). - Model number: 2971C005 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07H5SL6W3 | | Box Contents | 1 | | Brand | Canon | | Brand Name | Canon | | Camera Lens | The Canon EF-EOS R bayonet adapter allows the use of EF and EF-S lenses on EOS R cameras. It fits any camera with RF bayonet and is dust and splash proof. EF-S lenses can also be connected, with the camera then generating a picture section. The adapter is compatible with the EOS R3, EOS R5, EOS R6, EOS R and EOS RP. | | Camera lens description | The Canon EF-EOS R bayonet adapter allows the use of EF and EF-S lenses on EOS R cameras. It fits any camera with RF bayonet and is dust and splash proof. EF-S lenses can also be connected, with the camera then generating a picture section. The adapter is compatible with the EOS R3, EOS R5, EOS R6, EOS R and EOS RP. Camera lens description The Canon EF-EOS R bayonet adapter allows the use of EF and EF-S lenses on EOS R cameras. It fits any camera with RF bayonet and is dust and splash proof. EF-S lenses can also be connected, with the camera then generating a picture section. The adapter is compatible with the EOS R3, EOS R5, EOS R6, EOS R and EOS RP. See more | | Colour | black | | Compatible Camera Models | Canon EOS R, Canon EOS R5, Canon EOS R6 | | Compatible Devices | Canon EOS R Kameras | | Compatible Mountings | Canon EF | | Compatible mountings | Canon EF | | Country of Origin | Taiwan | | Customer Reviews | 4.6 out of 5 stars 2,436 Reviews | | Exposure Control Type | Automatic | | File Format | MP4 | | Focal length description | Adapter, pas de longueur focale | | Focus Type | Manual Focus | | Global Trade Identification Number | 04549292115703 | | Has Self-Timer | Yes | | Image Stabilization Type | no image stabilization | | Iso Range | 100-40000 | | Item Type Name | Bayonet adapter for EOS R | | Item Weight | 110 Grams | | Lens Design | Prime | | Lens Mount | Canon EF, Canon EF-S | | Lens Type | Mount Adapter | | Lens design | Prime | | Lens type | Mount Adapter | | Light Sensitivity | 100-40000 | | Manufacturer | Canon | | Manufacturer Part Number | EF-EOSR | | Media Type | ProductImage | | Model Name | Canon EF - EOS R | | Model Number | 2971C005 | | Screen Size | 1.5 Inches | | Shooting Modes | Automatic, Unknown specific modes | | Video Capture Format | MP4 | | Viewfinder Type | Electronic viewfinder (EVF) | | Water Resistance Level | Water Resistant | | Zoom Ratio | 1 | ## Product Details - **Brand:** Canon - **Compatible mountings:** Canon EF - **Focal length description:** Adapter, pas de longueur focale - **Focus type:** Manual Focus - **Image stabilisation:** no image stabilization - **Lens design:** Prime - **Lens type:** Lens accessory - **Model name:** Canon EF - EOS R - **Zoom ratio:** 1 ## Images ![Canon 2971C005 Bayonet adapter EF-EOS R. , black - Image 1](https://m.media-amazon.com/images/I/61I62Y0BMoL.jpg) ## Available Options This product comes in different **Pattern, Style** options. ## Questions & Answers **Q: Will this adapter be compatible with my 100-400ef mk11 on my r8** A: I have used it with 2 canon ef lenses works great but with my tamron and sigma it leaves a vignette so I would say it will work fine with your 100-400. **Q: Is this the adapter that comes with the canon r and rp cameras when bought anew?** A: It depends which one (on this multi-option listing) you and/or the Question responder are looking at. "Adapter" - sometimes but not always - bundled with the EOS R and EOS RP. "Adapter with lens control ring" - never seen this as part of a ready-made bundle. Seems to be popular for the extra functionality. The other two allow you to use drop-in filters. Again, never seen either as a ready-made bundle with the R or RP. Harry Potter and the curse of the multi-option listing. **Q: Will this work with lenses from my Canon 7D please ?** A: The Canon 7D uses EF lenses, so any lens you have for the 7D can be mounted to RF moj t with this adapter **Q: Is this adapter weather sealed?** A: According to Canon, yes they are. Also dust sealed when connected. The Canon version us beautifully flat and forms a perfect seal. I have 3 R adapters for use with EF lenses on the R . I believe they also fit the smaller RP too. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works perfectly and feels very solid *by A***D on 8 May 2026* It is expensive compared to some of the third party options but this one feels very very solid and has a decent weight to it making it feel stable and secure. Fits onto the body very well and doesn't affect any functions of the lens. The older EF and EF-S lenses still focus perfectly, in fact they're a bit quicker to find focus thanks to the better sensors on mirrorless than older DSLRs the EF lenses were made for. It also is weather sealed which secures an otherwise weak point in weather sealing between the body and older lenses. Comes with a decent protective sleeve to keep it protected in a camera bag. Ideally it'd be smaller, but that is a fact of how the bodies of these camera work vs the older DSLR so this isn't a fault of the product. ### ⭐⭐⭐⭐⭐ Excellent. *by M***A on 3 May 2026* Works perfectly as expected. Haven't had any issues with fit or compatibility, nice when something works so well you don't have to think about it. ### ⭐⭐⭐⭐⭐ Works a treat *by N***S on 3 October 2024* Hello...i've had this adapter for a while now and it works a treat with my EF lenses, primes and zoomy ones. Image quality is spot on Theres no wobble and everything attaches solidly. As far as i can say its weather sealed, was out in some torrential rain in the North East and there were no misfunctions. To those who say it makes the lens stick out more (of course it does its an adapter after all) but not in any way thats going to effect photographs or moving about, no way. Its saved me sooo much money not having to sell my existing EF lenses to buy replacements for my RF camera. Good Stuff....Bye. ## Frequently Bought Together - Canon 2971C005 Bayonet adapter EF-EOS R. , black - SanDisk 128GB Extreme PRO SDXC card, SD Card, V30 Memory Card, 4K UHD, up to 200 MB/s, SanDisk QuickFlow Technology, RescuePro Deluxe Data Recovery Software, UHS-I, Class 10, U3, V30 - Canon LP-E6NH Battery EOS R5/R6 Compatible EOS --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/93966026-canon-2971c005-bayonet-adapter-ef-eos-r-black](https://www.desertcart.co.uk/products/93966026-canon-2971c005-bayonet-adapter-ef-eos-r-black) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-20*