Canon Extender RF 1.4x | BorrowLenses
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Canon Extender RF 1.4x
Canon Extender RF 1.4x


The Canon Extender RF 1.4x mounts between your RF-mount camera body and RF-mount lens in order to give your lens more reach through magnification. It features a built-in microcomputer for seamless communication among camera body, lens and extender. Note that this extender reduces your maximum aperture by 1 stop. It is recommended that you attach the extender to your lens and then attach the pair to your camera body. Extenders allow photographers to shoot from greater distances without having to resort to using larger and longer lenses. They are compatible with both full frame and crop frame sensor cameras and they are ideal for sports and wildlife.

  • Canon RF 600mm f/11 IS STM Lens
  • Canon RF 800mm f/11 IS STM Lens
  • Canon RF 100-500mm f/4.5-7.1L IS Lens

  • • Not all lenses are compatible with this extender. For a list, see this guide. If it’s not listed in that guide, it may still be compatible but we can't guarantee it and it'll be a risk.

  • • Back Cap
  • • Front Cap

  • • Compatible with Canon RF Mount (Currently the 600mm/800mm RF D.O. Lenses and the 100-500mm RF)
  • • Increases Lens Effective Focal Length by 1.4x
  • • Produces 1 Stop of Light Loss (Example: f/2.8 = f/4)
  • • Maintains Metering, Autofocus, and Image Stabilization (On Compatible Lenses)
  • • Dust and Moisture Resistant
  • • Length: 0.8"
  • • Weight: 7.9 oz


    Canon Extender RF 1.4x

  • • 1.4x Focal Length Magnification
  • • Compatible with Select RF Telephotos
  • • Maintains Metering/AF/IS on Compatible Lenses
  • • Weather Resistant
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