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Canon Extender EF 2x III (Tele Extender) - U.S.A.

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$429.00
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Canon 2x: Picture 1 regular $429.00

About Canon 2x

Designed to extend a lenses focal length by a factor of 2x, the redesigned CanonExtender EF 2X III delivers optical performance on par with the finest Canon super telephoto lenses.

It features a built-in microcomputer for seamless communication among camera body, lens and extender, features careful lens placement and coatings to minimize ghosting, flare and chromatic aberration, and even has a new Fluorine coating that keeps soiling, smears, fingerprints to a minimum.

Extender EF 2X III meets necessary standards in terms of rugged, dustproof and water-resistant construction, and should be in every professional's camera bag.

Lens Compatibility
EF 135mm f/2L USM - AF Possible -
EF 180mm f/3.5L Macro USM - AF Not Possible -
EF 200mm f/2.8L II USM - AF Possible -
EF 200mm f/2L IS USM - AF Possible - "With the EOS-1Ds Mark II, EOS-1Ds, EOS-1D Mark II N, EOS-1D Mark II, EOS-1D, EOS-1v, EOS 1v HS and EOS-3, AF is possible with the center focusing point only"
EF 300mm f/2.8L IS USM - AF Possible -
EF 300mm f/4L IS USM - AF Not Possible - With the EOS-1Ds Mark III, EOS-1Ds Mark II, EOS-1D Mark III, EOS-1D Mark II, EOS-1Ds, EOS-1D, EOS-1v and EOS-3, AF is possible with the center focusing point only. The Image Stabilizer does not operate with the following cameras: EOS650, 630, 620, 600, RT, 700, 750, 850, EOS-1, A2, A2E, 10s, ELAN, Rebel, Rebel S, Rebel II and Rebel SII.
EF 400mm f/2.8L IS USM - AF Possible -
EF 400mm f/4 DO IS USM - AF Not Possible - With the EOS-1Ds Mark III, EOS-1Ds Mark II, EOS-1D Mark III, EOS-1D Mark II, EOS-1Ds, EOS-1D, EOS-1v and EOS-3, AF is possible with the center focusing point only. The Image Stabilizer does not operate with the following cameras: EOS650, 630, 620, 600, RT, 700, 750, 850, EOS-1, A2, A2E, 10s, ELAN, Rebel, Rebel S, Rebel II and Rebel SII.
EF 400mm f/5.6L USM - AF Not Possible -
EF 500mm f/4L IS USM - AF Not Possible - With the EOS-1Ds Mark III, EOS-1Ds Mark II, EOS-1D Mark III, EOS-1D Mark II, EOS-1Ds, EOS-1D, EOS-1v and EOS-3, AF is possible with the center focusing point only. The Image Stabilizer does not operate with the following cameras: EOS650, 630, 620, 600, RT, 700, 750, 850, EOS-1, A2, A2E, 10s, ELAN, Rebel, Rebel S, Rebel II and Rebel SII.
EF 600mm f/4L IS USM - AF Not Possible - With the EOS-1Ds Mark III, EOS-1Ds Mark II, EOS-1D Mark III, EOS-1D Mark II, EOS-1Ds, EOS-1D, EOS-1v and EOS-3, AF is possible with the center focusing point only. The Image Stabilizer does not operate with the following cameras: EOS650, 630, 620, 600, RT, 700, 750, 850, EOS-1, A2, A2E, 10s, ELAN, Rebel, Rebel S, Rebel II and Rebel SII.
EF 800mm f/5.6L IS USM - AF Not Possible - "With the EOS-1Ds Mark II, EOS-1Ds, EOS-1D Mark II N, EOS-1D Mark II, EOS-1D, EOS-1v, EOS1v HS and EOS-3, AF is possible with the center focusing point only"
EF 1200mm f/5.6L USM - AF Not Possible -
EF 70-200mm f/2.8L IS USM - AF Possible - If the lens is attached to an EOS camera, having multiple focusing points and an Extender is attached to the lens, only the center focusing point will be useable for AF.
EF 70-200mm f/2.8L USM - AF Possible -
EF 70-200mm f/4L IS USM / USM - AF Not Possible - With the EOS-1Ds Mark III, EOS-1Ds Mark II, EOS-1D Mark III, EOS-1D Mark II, EOS-1Ds, EOS-1D, EOS-1v and EOS-3, AF is possible with the center focusing point only.
EF 100-400mm f/4.5-5.6L IS USM - AF Not Possible - The Image Stabilizer does not operate with the following cameras: EOS650, 630, 620, 600, RT, 700, 750, 850, EOS-1, A2, A2E, 10s, ELAN, Rebel, Rebel S, Rebel II and Rebel SII.


The Canon 2x is commonly used for Landscape/scenery, Macro photography, Sports/action, Wildlife photos and more.The Canon 2x is most used by customers who consider themselves to be a Photo enthusiast, Pro photographer, Semi-pro photographer among others.The Canon 2x is popular because customers like the following qualities of the Canon 2x: Consistent output, Durable, Easily interchangeable, Fast / accurate auto-focus, Lightweight, Nice bokeh, Rugged and Strong construction

Canon 2x Specifications

Focal Length & Maximum Aperture
Magnification: 2.0x
Lens Construction
9 elements in 5 groups
Max. Diameter x Length
2.8 x 2.1 in. / 72.0 x 52.7mm
Weight
11.5 oz. / 325g
Coating
Minimizes ghosting, flare and chromatic aberration, with new Fluorine coating
Other
Dustproof / Water-Resistant
Mfr #
4410B002
SKU
CA2XAF3U

Canon 2x Reviews Powered by TurnTo®

Review Snapshot®

 
4.3

(based on 52 reviews)

Ratings Distribution

  • 5 Stars

     

    (31)

  • 4 Stars

     

    (13)

  • 3 Stars

     

    (4)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (3)

Most Liked Positive Review

 

Great, works great with 70-200 2.8 IS II

Also have 1.4X I, the 2X III is definitely worth having. Sharpness is much improved over previous versions. Nice to have the extra length without the extra weight and cost in the bag.

VS

Most Liked Negative Review

 

no auto focus

i bought this extender to go with my ef 100-400mm f/4.5-5.6L is usm lens. the auto focus does not work with this lens when using the extender. i talked with canon and they confirmed that af will not work with this lens, even though their literature claims it is compatable. if you plan on any action photos, this extender is not right for you.

Reviewed by 52 customers

 
5.0

The Canon EF 2x III is great with a Canon EF 600mm f/4L

By

I just got the 2x III and attached it to my EF 600mm f/4L lens to do some test shots from my home. The lens, with the 2x, is extremely sharp and easy to focus. Also, finding the subject was also fairly easy, for a long lens with a 2x. The auto center focus is very fast, with the 2X, after using the focus ring on the lens to get in the ballpark. I plan on using the lens, with the 2x to photo ocean subjects as well as nature subjects. I live close to the pacific coast which has a number of interesting subjects off shore, in the surf, and at the wetlands.

 
5.0

Excellent addition

By

This extender when paired with a high optical quality lens can yield sharpness very close to one of the long primes. I've paired it with the 300mm F2.8L IS II lens and a 7d mark II body to get almost 1000mm at f5.6. Image sharpness is very close to what I get with a 600mm f4. AF speed is very fast. It seems slow but due to the design it doesn't have to move AF as far so the net time to acquire focus is about the same. I use this set up with the 300mm to hike with. I can take it places I cannot go with the 600mm f4. Note that it will magnify a poorly performing lens. I definately recommend this if you have a need for occasional long distance photography.

 
1.0

Failed Basic Quality Test

By

In wildlife photography, one seldom sees a distant object of interest filling the entire frame. Therefore, options to improve the picture often include: 1. cropping to the desired object size, or 2. using a longer lens, or 3. using an extender with a compatible long lens. In the comparison between 1 and 3, I used a a Cannon 5d Mark II and a EF100-400mm f/4.5-5.6 L IS USM.(Push/Pull Model) ISO 400, Aperture Pref., Daylight WB. set at f5.6 and 400 mm, and handheld for Case 1. For case 3 all the same except that an EF 2XIII extender and a heavy duty tripod was added and the f stop went to 11. In both cases, the resultant shutter speed was fast enough to eliminate any camera shake. When case 1 and case 3 photos of stationary birds at a sun lit feeder at a distance of about 25 yds were cropped to the same object size, not only was there NO IMPROVEMENt in case 3 but actually, the pictures became grainy, noisy, and and had color distortions on the edges of the objects. The Extender appeared to be well built and attached and detached easily. With the above combination, standard AF will not work because the max f is 11. However, the "workarround" of shooting in "live mode", with AF on, AF driver set as "Live" and focussing by depressing the "AF-ON" button till the rectangle turns green is easy and gives an accurate focus but slightly slower than standard AF. Since the investment cannot yield an improvement for the particular use for which I purchased it, I returned the Extender.

 
5.0

Great Product

By

I use the 70-200 F2.8 ISII which is a versatile lens. This gives me another level of versatility and coupled with the 5DMKIII, I still have plenty of light. This is a great option until I can decide on whether the EF 200-400mm f/4L IS USM with the built-in Extender or the 500mm will be my next lens.

 
1.0

Auto focus doesn't work on most Canon cameras

By

Auto focus does not work with the 2x-III extender on most Canon cameras. Nothing on the product specs or description documents this shortcoming. Auto focus works in LiveView only on my 6D/100-400 combo, but it is way too slow to be useful at all. I sent it back the same day.

(1 of 1 customers found this review helpful)

 
5.0

I love this extender

By

This is the second Canon 2x extender I've had. I use this with a full frame Canon 5D Mark III and find it remarkable for getting closeups of people in day-to-day activities, sports, and closeups of flowers and of wildlife (e.g., elk and bison in Yellowstone National Park). The two-stop loss of light has not been an issue for me in use outdoors during daylight, but does limit its use in very low light conditions.

 
5.0

fine performance

By

Excellent in combination with the 300mm f2.8 L Does slow the auto focus down a bit.

 
5.0

Great lens for wildlife photography!

By

Nature photography and the study of birds is a passion of mine. This tele extender is a great economical alternative to putting down several thousand $ for a really large high quality lens. Paired with my 70-200mm f/2.8L on the EOS 7D it works great and does not add much weight to carry in the field. I'd recommend this lens to anyone looking for an ecconomical alternative to extending the reach of their camera!

 
5.0

An excellent extender

By

An essential closeup accessory for me, used to get additional working distance or magnification with the Canon 180/3.5. For macro work, there is no appreciable loss of image quality, as there is with other uses.

 
4.0

Good to Have, easily carried .

By

Used with 300 2.8 L, very satisfied with performance. Also works well with 70-200 LIS.

Q&A

Questions & Answers Powered by TurnTo®

Questions about this item:

David T  How well does it work with a 5 d mark3?
KAREN J. H  Works great, but it also depends on the lens. If the maximum aperture with the lens-teleconverter is f/8 (as happens when you attach the 2x TE to an f/4 prime lens), only the center point is active for autofocus.
David T  Canon 100-400 f 4-5.6 for the 1.4 converter for 5 d mark3
Pravin P  I have 7D and Canon EF 100-400mm f/4.5 - 5.6L USM Auto Focus Lens. Which extender would be better for me - 1.4x or 2x? What advantages and disadvantages with both lenses? I specially use this lens for wild life shootings.
KAREN J. H  If you want to shoot using autofocus, the answer is neither. If you are using manual focus, the answer is the 1.4x tele-extender. Please see the Canon compatibility charts in the description of these tele-extenders; only the 1.4x can "work" with the 100-400 mm lens, but it only does that if you are manually focusing.
Pravin P  Thank you for your input.
Paul R  I have a Canon Zoom Lens, EF 70 - 300mm, f1:4 - 5.6, IS, USM. Will this extender work with that lens?
JAMES W  It probably will but you should check with Canon to make sure. I am sure that if it will work you will have to focus manually . Have fun.
Paul R  James, Thanks for your response. Paul
See more questions and answers

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