Video Chat with a Photography Expert - Live

Canon Extender EF 1.4X III

BH #CA14XEF3 • MFR #4409B002
Canon Extender EF 1.4X III
Key Features
  • EF Mount Teleconverter
  • 1.4x Magnification Factor
  • Microcomputer Controlled
  • Communication Between Lens & Camera
The Extender EF 1.4X III from Canon is designed for select Canon EF mount L-series telephoto lenses. It increases the focal length of a lens by a factor of 1.4x while still delivering superb image quality. To ensure the best possible image quality in all shooting conditions, it combines redesigned optics, improved data communication between lens and camera and enhanced environmental protection. It is ideal for photojournalists and wildlife, nature and sports photographers who need to get close to distant and challenging subjects and it reduces the need to carry heavy telephoto lenses.
Grey Market
In Stock
Free Expedited Shipping
Protect Your Gear
Add a protection plan from $64.95
Ask an Expert
877.717.9890
See any errors on this page? Let us know

I am using a canon are six mirror, less body with ...

I am using a canon are six mirror, less body with a sigma 150 to 600 mm contemporary lens. Will this work with that combination?
Asked by: Mark D
The Canon Extender EF 1.4X III is incompatible with the Sigma 150-600mm f/5-6.3 DG OS HSM Contemporary Lens for Canon EF. Instead, use the Sigma TC-1401 1.4x Teleconverter for Canon EF. This teleconverter is compatible with Canon R series mirrorless cameras when using the Canon Mount Adapter EF-EOS R. Here is the link: https://bhpho.to/43dSTYD.
Answered by: Lawrence C
Date published: 2023-05-19

will this fit a will this extender work with a ...

will this fit a will this extender work with a Tamron SP 150-600mm f/5-6.3 Di VC USD G2?
Asked by: Jeff
I'm sorry, no, Canon converters only work with Canon L series pro lenses, like the 70-200 and 100-400. Tamron makes a converter that would work. You can click on the link below to view: https://bhpho.to/3db5gf2
Answered by: Rob
Date published: 2020-03-18

Will a version II teleconverter work on Version ...

Will a version II teleconverter work on Version III lenses?
Asked by: James
Yes, they will. The version II teleconverter will have the same function in the version III lenses as it has on the version II lenses.
Answered by: Michele
Date published: 2020-03-17

question

This is obviously 100% compatible with the Canon 70-200 f2.8L IS II but does the autofocus work perfectly when attached to a 70D and this lens?
Asked by: Anonymous
Yes, the auto focus will work on the 70D with that combination lens and teleconverter.
Answered by: Robert K.
Date published: 2018-08-28

Will Canon Extender EF 1.4X III work with EF ...

Will Canon Extender EF 1.4X III work with EF 100-400mm f/4.5-5.6L IS II USM on an EOS 90D?
Asked by: Mark
Yes. The EF 100-400, Extender EF 1.4X III, and the Canon 90D will all play incredibly well together!
Answered by: Jeremy
Date published: 2023-12-11

question

Will the Canon 1.4 Extender III work with the 100-400 v2 and 6D camera?
Asked by: Kenneth B.
Yes, I have used that combination, you minimum F-stop will be 1.4 x 4.5 = 6.3
Answered by: Frank W.
Date published: 2018-08-28

Will this work with Canon 100-400 II and a 5D ...

Will this work with Canon 100-400 II and a 5D Mark III?
Asked by: Edward
It will mount , you will loos auto focus
Answered by: vilson
Date published: 2021-01-12

will this work on Canon R 7 with ef-r adapter ...

will this work on Canon R 7 with ef-r adapter with ef lenses?
Asked by: Greg
If you use a Canon teleconverter on a Canon lens with a Canon camera, it should work. However, it works according to the"rules of teeconverters" which means that most cameras will not autofous if the aperture goes above an F8. When you use a 1.4 extender, you lose 1 stop on the lens. If the higher aperture was a 5.6, 1 stop would take it to an f8 and you'd still be ok. But if the lens was already an f8 or slower, you'd lose autofocus. The other thing to worry about is that not all lenses will physically fit on a teleconverter. That protruding section (I like to call it a nose) might impact the back of the lens which is not a good thing. So, you have to check if the particular EF lens is compatable with the teleconverter. If it is, the EOS R adapter will let you mount it on the camera.
Answered by: Hymie
Date published: 2023-02-25
  • y_2024, m_7, d_22, h_5CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_206
  • loc_en_US, sid_732113, prod, sort_[SortEntry(order=HAS_STAFF_ANSWERS, direction=DESCENDING)]
  • clientName_bhphotovideo