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Canon 1.4x EF Extender II (Teleconverter) USA

  • Discontinued

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    This item has been discontinued by the manufacturer and is no longer available.

  • B&H # CA14XEF2
  • Mfr# 6845A004

This item has been discontinued by the manufacturer and is no longer available.

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The Canon EF 1.4x II Extender is a high-quality teleconverter that preserves the image quality of the lens it's mounted to and multiplies its focal length by 1.4x. When combined with pro level EOS cameras & EF supertelephoto lenses with image stabilization, near imperviousness to weather extremes is achieved thanks to rubber gasket seals. Improved anti-reflective internal coatings also increase transmissivity & performance in backlit conditions.

The extender will cut back the amount of light by one f/stop. For example using a 1.4x teleconverter with a 300mm f/2.8 lens will effectively increase the focal length to approximately 420mm and the f/2.8 aperture will now be f/4. Teleconverters are best used with longer telephoto lenses and are not recommended for lenses wider than 50mm, e.g. 28-105mm (35mm format).

Note: This teleconverter will only fit and work with a select list of lenses. Please click here for the compatibility chart of all compatible lenses.

Notes on Camera Compatibility
  • Autofocus is possible on any EOS camera when combined with a lens having an f/4 or faster maximum aperture.
  • If the lens is attached to an EOS camera having multiple focusing points and an extender attached, only the center focusing point will be usable for AF.
  • When attached to the EF 180mm f/3.5L Macro USM lens, the autofocusing range is from 2.6' (0.8 m) to infinity. It varies slightly with the EOS-1v, EOS-1N, EOS-1 and EOS-3.
  • When attached to the EF 400mm f/4L DO ISM lens or the EF 100-400 f/4.5-5.6 lens, autofocus is possible with the center focus point only with EOS 1Ds Mark II, EOS 1Ds Mark III, EOS 1D Mark II, EOS 1D Mark III, EOS 1D, EOS 1v and EOS 3.
  • When attached to the EF 800mm f/5.6L IS USM autofocus is possible with the center focus point only with EOS 1Ds Mark II, EOS 1Ds, EOS 1D Mark II N, EOS 1D Mark II, EOS 1v HS and EOS 3.
  • When attached to the EF 100-400mm f/4.5-5.6L IS USM lens, the Image Stabilizer (IS) will not work with the following EOS cameras: 650, 630, 620, 600, RT, 700, 750, 850, 1, A2, A3, 10S, Elan, Rebel, Rebel II, Rebel S and Rebel SII.
Magnification 1.4x
Lens Elements/Groups 5/4
Length 1.1" (27.2mm)
Diameter 2.9" (72.8mm)
Weight 8 oz (220g)

REVIEW SNAPSHOT®

by PowerReviews
Canon 1.4x EF Extender II (Teleconverter)
 
4.7

(based on 308 reviews)

Ratings Distribution

  • 5 Stars

     

    (228)

  • 4 Stars

     

    (63)

  • 3 Stars

     

    (12)

  • 2 Stars

     

    (2)

  • 1 Stars

     

    (3)

98%

of respondents would recommend this to a friend.

Pros

  • Durable (190)
  • Lightweight (175)
  • Strong construction (173)
  • Easily interchangeable (169)
  • Fast / accurate auto-focus (157)

Cons

  • Poor in low light (23)
  • Slow focus (23)
  • Heavy (7)
  • Blurry focus (4)
  • Pricey / poor value (4)

Best Uses

  • Sports/action (144)
  • Wildlife photos (113)
  • Wildlife (82)
  • Landscape/scenery (49)
  • General purpose (47)
    • Reviewer Profile:
    • Photo enthusiast (96), Enthusiast (61), Semi-pro photographer (49), Semi-professional (39), Pro photographer (19)
    • Was this a gift?:
    • No (72)

Most Liked Positive Review

 

Great Accessory

* Image Quality Effects:
This depends on the lenses you use it with. These extenders are engineered for the super teles in my opinion, but I use it for telephoto zoom lense...Read complete review

* Image Quality Effects:
This depends on the lenses you use it with. These extenders are engineered for the super teles in my opinion, but I use it for telephoto zoom lenses. I have used this extender on the 70-200 f/2.8L IS and the 70-200 f/4L IS. There is a very slight but noticeable degradation on IQ. The resolution is similar, but what changes is that there is a very small blooming or hazy effect towards the edges of the frame wide open. Centre remains very sharp though. These are all assessments when the lens is wide open (the IQ of course slightly improves when stopping down for both lenses)

Note that YMMV because I am a pixel peeper who views every image at 100%. Even so, I would still say the lenses are still sharp wide open though, especially in the centre.

* 1 Stop Loss:
This is a bigger problem for me personally than the IQ loss, especially with the f/4 lens. A f/5.6 lens is quite slow, but that's what the 70-200 f/4L IS becomes when mounted with an extender.

* AF Slowdown:
The AI Servo AF does slow down when using the Extender with these lenses (with a 1D Mark III). The slowdown is noticeable, though the AF speed would still be classified as "Very Fast" as opposed to "Instant" for the bare lens.

I find it is sometimes a problem with Sports especially as the light starts to dim, and the keeper rate falls slightly if the camera doesn't have enough time to acquire initial focus from a large amount of defocus (For tracking is less affected by this issue)

* Build Quality:
Excellent, solid, very well built, better than even some L lenses I'd say. Weather seal is a plus with Canon 1 series and weather sealed lenses. Have used in rain to no ill effect (YMMV)

* Downsides:
Well, none that are not known before you purchase the item.

None of the downsides (loss of light and loss of IQ) are suprising or avoidable based on current physics. But one thing that can be changed is price - this is an overpriced piece of equipment imo...it's almost as pricey as a nice lens like a 100mm Macro

BH Photo's price is decent in comparison, but some of the local retailers in Australia have it at a ridiculous price - I suggest shopping around to grab a bargain.

VS

Most Liked Negative Review

 

Not for fast action shooting

I use this extender with an ef70-200mm f/2.8 IS lens on an EOS 40D camera, and primarily shoot motor sports. The magnification is as expected, but comes with a marked reduction in...Read complete review

I use this extender with an ef70-200mm f/2.8 IS lens on an EOS 40D camera, and primarily shoot motor sports. The magnification is as expected, but comes with a marked reduction in auto focus speed.

When shooting a car coming directly at the camera with the extender, the camera hunts for focus about 30% of the time, and is slow to focus on the remainder. With a motorcycle, the hunting goes up to over 50%. I now use manual focus, and wait for the subject to "come to me" before taking the shot. In situations that don't require the almost instant focus the lens alone provides, the extender is a useful tool, and when the focus does lock, it is accurate.

I would like for the extender to work with my entire Canon lens collection, but I was aware than it would not bfore the purchase.

REVIEWS

Reviewed by 308 customers

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Displaying reviews 1-20

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5.0

Work perfect with 500mm f4.0 IS

By Frippertronic

from Canada

About Me Photo Enthusiast

Verified Buyer

Pros

  • Consistent Output
  • Durable
  • Fast / accurate auto-focus
  • Nice Bokeh
  • Rugged
  • Strong Construction

Cons

    Best Uses

    • Landscape/Scenery
    • Sports/Action
    • Wildlife Photos

    Comments about Canon 1.4x EF Extender II (Teleconverter):

    Picture quality better than with the Sigma 1.4x.
    Very low picture degradation. Auto-focus and stabilization work very well.

    • Was this a gift?:
    • No

    Comment on this review

     
    5.0

    Good investment

    By Ido

    from Israel

    About Me Photo Enthusiast

    Verified Buyer

    Pros

    • Consistent Output
    • Fast / accurate auto-focus
    • Lightweight
    • Strong Construction

    Cons

      Best Uses

      • Night Photography
      • Wildlife Photos

      Comments about Canon 1.4x EF Extender II (Teleconverter):

      For a long time, I was thinking about 'extending' the range of my lenses. I have a 17-50 by Tamron, and a 70-200 by Canon. The 200 end is a little short for my needs, so I've been considering a 300mm lens, but the cost is too high. After trying my friend's tele extender, it became obvious that the tele-exetender is the way to go. And canon's extender is the best match for my canon's lens! It performs wonderfully, while keeping the image as sharp as it was without it!
      Highly recommended!

      • Was this a gift?:
      • No

      Comment on this review

       
      5.0

      Great purchase

      By MLBPHOTO

      from Green Bay, WI

      About Me Pro Photographer

      Verified Buyer

      Pros

      • Easily Interchangeable
      • Lightweight

      Cons

      • Poor in Low Light

      Best Uses

      • Sports/Action

      Comments about Canon 1.4x EF Extender II (Teleconverter):

      I shoot a lot of sports and also own the 2x, but I only use it when the sun is out. Used the 1.4x at a Lambeau Field night game and had no problem capturing the action, but I did have to take it off when I was shooting under high school football lights.

      • Was this a gift?:
      • No

      Comment on this review

       
      4.0

      Exclent converter

      By Mohammed

      from Doha -Qatar

      About Me Semi-pro Photographer

      Verified Buyer

      Pros

      • Strong Construction

      Cons

        Best Uses

        • Macro Photography

        Comments about Canon 1.4x EF Extender II (Teleconverter):

        I am using this teleconverter with canon 90mm Tilt and shift lens and giving me very good result and I am happy with that I will tray it with Ef 70-200 also in near soon

        • Was this a gift?:
        • No

        Comment on this review

         
        5.0

        Great way to extend your existing lens

        By Kim B

        from New Jersey

        About Me Photo Enthusiast

        Verified Buyer

        Pros

        • Consistent Output
        • Easily Interchangeable
        • Lightweight

        Cons

        • Poor in Low Light

        Best Uses

        • Wildlife Photos

        Comments about Canon 1.4x EF Extender II (Teleconverter):

        Clear quality and great extention. Does not interfer with AF when using apporpriate lens. A good option if the higher zooms are above your price range.

        • Was this a gift?:
        • No

        Comment on this review

         
        4.0

        Extends the using range of my lens

        By Arve

        from Norway

        About Me Photo Enthusiast

        Verified Buyer

        Pros

        • Fast / accurate auto-focus
        • Strong Construction

        Cons

          Best Uses

          • Sports/Action
          • Wildlife Photos

          Comments about Canon 1.4x EF Extender II (Teleconverter):

          Extender for lens when i am far away from object. Extends the using range of my lens. High quality. Had been nice with 2X, but without AF working this was not an option.

          • Was this a gift?:
          • No

          Comment on this review

           
          5.0

          great product

          By BushSpots

          from Africa

          About Me Semi-pro Photographer

          Verified Buyer

          Pros

          • Consistent Output
          • Durable
          • Fast / accurate auto-focus
          • Lightweight
          • Strong Construction

          Cons

            Best Uses

            • Wildlife Photos

            Comments about Canon 1.4x EF Extender II (Teleconverter):

            As a private safari guide I travel though Africa on a regular basis. I need to travel light this is a perfect addition to my camera bag.

            • Was this a gift?:
            • No

            Comment on this review

             
            5.0

            Worked pefectly

            By Mutt Papa

            from East Haven CT

            About Me Semi-pro Photographer

            Verified Buyer

            Pros

            • Easily Interchangeable
            • Fast / accurate auto-focus
            • Lightweight
            • Rugged
            • Strong Construction

            Cons

              Best Uses

              • Landscape/Scenery
              • Wildlife Photos

              Comments about Canon 1.4x EF Extender II (Teleconverter):

              Wildlife and landscape photography.

              I picked this up just before my first trip to Yellowstone National Park, and I couldn't be happier! The 1.4 extender gave me the extra reach that helped to get some shots that I would not have been able to with out it. I used it with the 7D and the Canon 70-200 IS L 2.8. The auto focus worked perfectly and the 1.4 conversion made the 2.8 an f4 which was acceptable to me. This was a cost effective solution to get more reach and not spend $$$ to go to the 100-400 or something larger. I am very pleased with this product.

              • Was this a gift?:
              • No

              Comment on this review

               
              5.0

              Awesome with EF 70-200mm 2.8L IS Lens

              By Alan from Pascagoula

              from Pascagoula,Mississippi

              About Me Pro Photographer

              Verified Reviewer

              Pros

              • Consistent Output
              • Durable
              • Easily Interchangeable
              • Fast / accurate auto-focus
              • Lightweight
              • Nice Bokeh
              • Rugged
              • Strong Construction

              Cons

                Best Uses

                • Landscape/Scenery
                • Macro Photography
                • Sports/Action
                • Weddings/Events
                • Wildlife Photos

                Comments about Canon 1.4x EF Extender II (Teleconverter):

                I use this with my 70-200. The Autofocus works great and it just goes up one stop on F-Stop to 4. I used it a lot before I got my EF 100-400mm 4-5.6L IS Lens that I keep on my 7D. The 70-200mm 2.8L IS is a great lens. One of the best I think. Stays on my 50D. A EF 100mm 2.8 USM on my 40D and EF 24-70mm 2.8L USM on my 1Ds. The 70-200 is my favorite. If I need more distance, the 1.4x II Extender comes out. It makes little difference in lighted situations and really in low light too. I would recommend it for the 70-200mm 2.8L lens to anyone. Great addition to the camera bag.

                • Was this a gift?:
                • Yes

                Comment on this review

                (0 of 1 customers found this review helpful)

                 
                4.0

                Gotta Have It!

                By Lonnie

                from White Plains, New York

                About Me Pro Photographer

                Verified Buyer

                Pros

                • Easily Interchangeable
                • Lightweight
                • Strong Construction

                Cons

                • Poor in Low Light

                Best Uses

                • Sports/Action

                Comments about Canon 1.4x EF Extender II (Teleconverter):

                I basically use the extender for high school outdoor sports. Because of the distances your forced to shoot from, it's a great addition to my 70-200mm 2.8 It gives you more reach and is far less expensive then the f/4 300m L series lens. Also great for indoors during basketball season but external strobes is a must. The only dislike is the fact that you lose 2 f stops which is why the strobes are necessary in doors. Other than that It's an additional piece of equipment every outdoor sports photographer should own!

                • Was this a gift?:
                • No

                Comment on this review

                (1 of 1 customers found this review helpful)

                 
                3.0

                I got what I expected.

                By Wish i could afford the best.

                from Denver, CO

                About Me Photo Enthusiast

                Verified Buyer

                Pros

                • Cost effective
                • Durable
                • Easily Interchangeable
                • Easy to use
                • Lightweight
                • Light weight
                • Rugged
                • Strong Construction

                Cons

                • Blurry Focus
                • Did not allow auto focus
                • Poor in Low Light

                Best Uses

                • In birght daylight
                • Sports/Action

                Comments about Canon 1.4x EF Extender II (Teleconverter):

                I just returned from a South African safari where I put the 1.4 to use. As most reviews stated, I did not get the sharpness that I would have liked to get, especially at 400mm on my Canon 40D with my Canon EF 100-400mm 1:4.5-5.6 L IS Ultra Sonic Lens.
                For the most part on Safari is used the camera hand held at wide aperture, f4.5 - 5.6 in low light at higher ISO because the light was low during the AM and PM drives.

                I could not afford the Canon 500 or 600mm lens with the wider apertures so I tried the extender. It performed well in bight light and was not quite so effective in the low light situations listed above. I used the converter to view game more so than shoot it.

                I ultimately took most pictures without the adapter and waited until I got close enough to the animals to fill the frame with the 100-400 lens.

                • Was this a gift?:
                • No

                Comment on this review

                 
                4.0

                Light weight, durable.

                By Igor

                from Moscow, Russian Federation

                About Me Photo Enthusiast

                Verified Buyer

                Pros

                • Durable
                • Lightweight

                Cons

                  Best Uses

                  • Wildlife Photos

                  Comments about Canon 1.4x EF Extender II (Teleconverter):

                  I use it with 100-400 Canon lens, wanted to buy when realized that for some distant objects 400 is not enough. Good tripod recommended with this combination.
                  No autofocus, but for wildlife photos (when you shoot still objects) autofocus sometimes does not help too much, so lack of this function is neither "+" or "-". Also do not think autofocus will help much with moving objects (birds) on such focal length.
                  Just returned from Alaska trip when I started to use this extender.

                  • Was this a gift?:
                  • No

                  Comment on this review

                  (0 of 1 customers found this review helpful)

                   
                  1.0

                  Of little value

                  By Bubba

                  from Westford MA

                  About Me Photo Enthusiast

                  Verified Buyer

                  Pros

                  • Durable
                  • Easily Interchangeable

                  Cons

                  • No advantage
                  • No autofocus

                  Best Uses

                    Comments about Canon 1.4x EF Extender II (Teleconverter):

                    After extensive testing on my 400 mm telephoto lens, I've decided that the 1.4x expander (II) is no better than cropping the image without the extender. I did these tests under varied conditions with an AF bar chart. A big downside is that the AF doesn't any longer work with the 400 mm lens. Possibly the newer III extender is better, but I chose not to spend the [$] additional. Perhaps I should have.

                    • Was this a gift?:
                    • No

                    Comment on this review

                     
                    4.0

                    More Reach.

                    By adlalas

                    from Wisconsin rapids, WI

                    About Me Photo Enthusiast

                    Verified Buyer

                    Pros

                    • Easily Interchangeable
                    • Lightweight

                    Cons

                    • NONE

                    Best Uses

                    • Outside
                    • Sports/Action

                    Comments about Canon 1.4x EF Extender II (Teleconverter):

                    Use it with my 70-200 mm lens and the 400 mm lens.
                    It gives you more reach but you loose a stop.
                    Manageable if you are shooting indoors, fine outdoors.

                    • Was this a gift?:
                    • No

                    Comment on this review

                     
                    5.0

                    Works as described. Would buy again.

                    By Birdman 208

                    from Rexburg, Idaho

                    About Me Photo Enthusiast

                    Verified Buyer

                    Pros

                    • Consistent Output
                    • Durable
                    • Easily Interchangeable
                    • Fast / accurate auto-focus
                    • Lightweight
                    • Strong Construction

                    Cons

                      Best Uses

                      • Macro Photography
                      • Wildlife Photos

                      Comments about Canon 1.4x EF Extender II (Teleconverter):

                      I was amazed that it did not degrade the image quality on my 500 mm f/4 lens. It is very helpful for the bird photography that I do. Can't say anything bad about this teleconverter.

                      • Was this a gift?:
                      • No

                      Comment on this review

                       
                      4.0

                      Enjoying using the teleconverter!

                      By regjac

                      from Ontario, Canada

                      About Me Casual Photographer

                      Verified Buyer

                      Pros

                      • Easily Interchangeable
                      • Lightweight

                      Cons

                        Best Uses

                        • Landscape/Scenery

                        Comments about Canon 1.4x EF Extender II (Teleconverter):

                        Don't need it that often but it is nice to have available.

                        • Was this a gift?:
                        • No

                        Comment on this review

                         
                        5.0

                        Saving weight and money

                        By Gerry Dawes

                        from Patterson, New York

                        About Me Semi-pro Photographer

                        Verified Buyer

                        Pros

                        • Durable
                        • Easily Interchangeable
                        • Lightweight

                        Cons

                          Best Uses

                            Comments about Canon 1.4x EF Extender II (Teleconverter):

                            I am glad I purchased this Canon Extender. I was contemplanting buying a very expensive telefoto zoom, which would have seldom found its way into my bag. I travel extensively in places like Spain and I had to lighten my load and be practical. This extender pairs with my Canon 70-200mm L f/4 and gives me the extra reach without the extra weight and expense. I should have bought this extender years ago.

                            • Was this a gift?:
                            • No

                            Comment on this review

                            (1 of 1 customers found this review helpful)

                             
                            5.0

                            Great product

                            By Frankie-B

                            from Harrisburg Pa.

                            About Me Photo Enthusiast

                            Verified Buyer

                            Pros

                            • Consistent Output
                            • Durable
                            • Easily Interchangeable
                            • Fast / accurate auto-focus
                            • Lightweight
                            • Nice Bokeh
                            • Rugged
                            • Strong Construction

                            Cons

                            • NONE

                            Best Uses

                            • Macro Photography
                            • Sports/Action
                            • Video
                            • Wildlife Photos

                            Comments about Canon 1.4x EF Extender II (Teleconverter):

                            I mostly use this on a canon 500mm for wildlife.
                            makes a huge differency in reach for not alot of money. Quality is great, hard to see the difference in quality with or without the extender. I was so impressed with the product that I sent it back and got version III.
                            Version III offers a bit more overall sharpness,
                            but I'm a pixil peeper. If your not then go with version II and save some bucks.

                            • Was this a gift?:
                            • No

                            Comment on this review

                             
                            4.0

                            Good value for money

                            By Lot

                            from Melbourne AUS

                            About Me Semi-pro Photographer

                            Verified Buyer

                            Pros

                            • Lightweight
                            • Value for money

                            Cons

                            • Poor in Low Light

                            Best Uses

                            • Sports/Action
                            • Wildlife Photos

                            Comments about Canon 1.4x EF Extender II (Teleconverter):

                            I have a 70-200 F2.8L IS lens, but at some moments I miss a bit extra length. It is rare though and that is why I dont think the investment for a 300mm lens is not the way to go. The 1.4 extender with the L lens is working great, only be sensitive to the fact that it closes down a stop of light.

                            • Was this a gift?:
                            • No

                            Comment on this review

                            (1 of 9 customers found this review helpful)

                             
                            3.0

                            1.4x EF Extender II (Teleconverter) by C

                            By Ron

                            from Santa Fe, NM

                            About Me Photo Enthusiast

                            Verified Buyer

                            Pros

                            • Strong Construction

                            Cons

                              Best Uses

                                Comments about Canon 1.4x EF Extender II (Teleconverter):

                                I was unable to use this Teleconverter with any of my Canon zoom lenses, in particular my EF 70-300 mm f/4.5 - 5.6 IS USM or my EF 24-105 mm F/4L USM, EF 50 mm. The 1.4x Canon Teleconverter has a black O-ring that fits around the the inner lens that makes it too big to fit into the hole of the zoom lens. As a result, I would have to buy new lenses that fit.[...]

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                                Cases & Straps

                                LensCoat -  Lens Cover for the Canon Extender Set EF II (Black)
                                • Price: $19.95
                                 

                                Care & Cleaning

                                LensCoat -  Micro Fiber Cleaning Cloth
                                • Price: $6.95
                                 

                                What's in the Box

                                Canon 1.4x EF Extender II (Teleconverter)
                                 
                                 
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