If you don't maintain the distance, they cannot focus properly. Although there are other types of adapters on the market that can attach an EF lens to a Canon EOS M mount, it’s the Canon Mount Adapter EF-EOS M which is the most trustworthy. 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. If you bought some M lenses when you purchased your new Canon EOS M camera, you might wonder whether you should bother with a Canon lens adapter. Scroll down to easily select items to add to your shopping cart for a faster, easier checkout. The Canon EF M Mount Adapter: An Indispensable Tool. $99, Canon part number 2971C002, ships October 2018. (also at B&H.) Mount Adapter EF-EOS R. Mount Adapter EF-EOS R. bigger. This is the least expensive, plain adapter. The Canon Mount Adapter EF-EOS R ($99.99) is, at its core, a very basic accessory. Control Ring Mount Adapter EF-EOS R. Control Ring Mount Adapter EF-EOS R. bigger. EF mount flange depth is 44mm. This simple adapter retains full autofocus and image stabilization capabilities and contains no optical components, thereby maintaining the original optical quality of the mounted lens. Once we do that it's like an EF mount SLR with the mirror removed. It has one job—to make Canon EF and EF-S SLR lenses … So we have to pad that mount to 44mm deep with a 24mm thick adapter. View on Amazon. The Mount Adapter EF-EOS R gives you the ability to utilize any Canon EF or EF-S lens with the EOS R camera, letting you use your existing lenses with the camera and allowing you to expand your horizons. Review Canon null Buy Canon Mount Adapter EF-EOS R 0.71x featuring Canon EF Lens to Canon RF-Mount Body, Designed for EOS C70 Cinema Camera, Adapt Full-Frame Lens to Super 35 Body, Increases Angle of View by 0.71x, Increases Maximum Aperture by 1 Stop, Electric Contacts Support DPAF and Data, Includes Secure-Attachment Mount. The converter allows more freedom of choice for L-Mount cameras from SIGMA, Leica Camera and Panasonic, enhancing the extensibility of the L-Mount system. RF mount is 20mm flange depth. This is my favorite. It's the only one with an extra programmable control ring. Exactly. Fortunately, there are plenty of vendors on eBay who will sell you a genuine canon EF-EOS M mount adapter at a fair price. The Mount Adapter EF-EOS R 0.71x allows for EF Lenses to be mounted to RF cameras and due to internal optics, allows for a 1-stop gain in light transmission. So EF lenses were designed to be 44mm from the sensor. Canon Mount Adapter EF-EOS M. Canon Mount Adapter EF-EOS M Deals. The SIGMA MOUNT CONVERTER MC-21 allows SIGMA SA mount and SIGMA’s CANON EF mount interchangeable lens owners to use their lens investment on L-Mount camera bodies. Extending the range of compatible lenses, the Canon Mount Adapter EF-EOS R is a lightweight, compact lens adapter designed for attaching any EF or EF-S-mount lens to the EOS R mirrorless digital camera. This also allows for lenses to be used without a “crop factor”, allowing for extremely close field of view that corresponds to … The Fotodiox Canon EF to L-Mount Pro Fusion Adapter allows full electronic communication between the lens being used and the camera so you can control autofocus, aperture, as well as still being able to use IS if you are using a lens that has it. The Mount Adapter EF-EOS R gives you the ability to utilize any Canon EF or EF-S lens with the EOS R camera, letting you use your existing lenses with the camera and allowing you to expand your horizons. 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