To see product details, add this item to your cart. You can always remove it later.
Added to

Sorry, there was a problem.

There was an error retrieving your Wish Lists. Please try again.

Sorry, there was a problem.

List unavailable.
Other Sellers on Amazon
Added
Sold by: Amazon.com
Sold by: Amazon.com
Shipping rates and Return policy
Added
Sold by: Adorama
Sold by: Adorama
(578436 ratings)
92% positive over last 12 months
Shipping rates and Return policy
Added
Sold by: Dodd Camera
Sold by: Dodd Camera
(3895 ratings)
100% positive over last 12 months
Shipping rates and Return policy

Canon EF 2.0X III Telephoto Extender for Canon Super Telephoto Lenses

4.3 4.3 out of 5 stars 542 ratings

To see product details, add this item to your cart. You can always remove it later.
Available at a lower price from other sellers that may not offer free Prime shipping.

Purchase options and add-ons

Brand Canon
Focal Length Description 2
Lens Type Telephoto
Compatible Mountings Canon EF
Camera Lens Description 135 month

About this item

  • Compatible with Select EF Mount Lenses. Note: This lens is only compatible with fixed focal length L-series lenses 135mm and over, as well as the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L
  • 2.0x magnification factor
  • 9 elements in 5 groups lens construction
  • Spectra coating reduces ghosting/flare
  • Dust and water resistant
Bites for your bracket
Get ready for March Madness Find a Fresh store

Frequently bought together

$429.00
Get it as soon as Tuesday, Apr 2
Only 5 left in stock (more on the way).
Ships from and sold by Amazon.com.
+
$429.00
Get it as soon as Tuesday, Apr 2
In Stock
Ships from and sold by Amazon.com.
+
$2,399.00
Get it as soon as Tuesday, Apr 2
In Stock
Ships from and sold by Amazon.com.
Total price:
To see our price, add these items to your cart.
Details
Added to Cart
Some of these items ship sooner than the others.
Choose items to buy together.

Important information

Legal Disclaimer

FULL 14 DAY SATISFACTION GUARANTEE AND A 90 DAY PARTS AND LABOR WARRANTY. SERIAL #8100003479

Compare with similar items

This Item
Canon EF 2.0X III Telephoto Extender for Canon Super Telephoto Lenses
Canon EF 2.0X III Telephoto Extender for Canon Super Telephoto Lenses
Recommendations
Canon EF 400mm f/5.6L USM Super Telephoto Lens for Canon SLR Cameras (Renewed)
dummy
VILTROX Auto Focus 2X Teleconverter Extender Converter for Canon EF Mount Super Telephoto Lens 135mm f/2L,200mm,300mm,400mm,600mm,70-200mm,100-400mm and DSLR Camera 5DII 80D 760D 7D,Black
dummy
Canon RF100-400mm F5.6-8 is USM Black
dummy
Canon EF 400mm f/2.8L is III USM Lens, Black (3045C002)
dummy
Canon EF 1.4X III Telephoto Extender for Canon Super Telephoto Lenses
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Price$429.00$839.00$115.00$649.00$11,999.00$429.00
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Tomorrow, Mar 29
Get it as soon as Thursday, Apr 4
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Customer Ratings
Picture quality
4.2
5.0
4.0
4.5
4.6
Auto focus
3.6
4.3
3.5
4.5
4.6
Value for money
4.2
4.6
4.6
Sold By
Amazon.com
Minty Gadgets (we track serial numbers)
Weeylite Direct
Amazon.com
Amazon.com
Amazon.com
lens type
Telephoto
Telephoto
Telephoto
Telephoto
Telephoto
compatible mountings
Canon EF
Canon EF
Canon EF
Canon RF
Canon EF
Canon EF
lens design
Prime
Prime
Zoom
Zoom
Prime
Prime
focus type
Auto Focus
Manual Focus
Manual Focus, Auto Focus
Auto Focus
Auto Focus
Auto Focus
minimum focal length
400 millimeters
70 millimeters
100 millimeters
fixed focal length
2 millimeters
400 millimeters
400 millimeters
400 millimeters
30 millimeters
model name
extender ef
2526A004
CNRF100400F5
3045C002
4409B002
max aperture
2 f stop
5.6 f stop
2 f stop
400 millimeters
2.8 millimeters
5.6 f stop

From the manufacturer

-

Canon EF 2.0X III Telephoto Extender for Canon Super Telephoto Lenses

Description:

Designed to extend a lenses focal length by a factor of 2x, the Canon Extender EF 2X III delivers optical performance on par with the finest Canon super telephoto lenses. It delivers seamless communication among camera body, lens and extender, and features coatings to minimize ghosting, flare and chromatic aberration. The Fluorine coating resists soiling, smears and fingerprints. Extender EF 2X III meets all necessary standards in terms of rugged, dustproof and water-resistant construction, and should be in every professional's camera bag.

Looking for specific info?

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here

Feedback

Canon

Canon EF 2.0X III Telephoto Extender for Canon Super Telephoto Lenses


Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive.

Where did you see a lower price?

/
/
/
/
Please sign in to provide feedback.

Product Description

Product Description

The Canon Extender EF 2x III is designed to extend a lenses focal length by a factor of 2x, the redesigned Canon Extender 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.

From the Manufacturer

Designed to extend a lenses focal length by a factor of 2x, the redesigned Canon Extender 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.

Technical Specifications

  • Focal Length & Maximum Aperture Magnification: 2.0x
  • Lens Construction 9 elements in 5 groups
  • Max. Diameter x Length, Weight 2.8 x 2.1 in, 11.5 oz / 72.0 x 52.7mm, 325g

Product guides and documents

Customer reviews

4.3 out of 5 stars
4.3 out of 5
542 global ratings

Customers say

Customers like the performance, quality and value of the lens extender. For example, they mention that it works fantastic, is built like a tank and that it doubles distance for a fraction of the price. They are also happy with the zoom range, appearance, and sharpness. That said, some complain about the autofocus and image quality.

AI-generated from the text of customer reviews

87 customers mention69 positive18 negative

Customers like the performance of the lens extender. They say it works well with new camera bodies and lenses, and provides excellent results. Some mention that it works in bright light with hardly any loss of functionality. Overall, most are satisfied with the performance and recommend it to others.

"...quality lens, like the 70-200/2.8 IS II, there is hardly any loss of functionality at all...." Read more

"...I use this primarily for bird photography. The 2X works really well with this combination...." Read more

"...AF works flawlessly so long as you had a sufficiently large aperture on the lens you're starting with..." Read more

"...It performed well; however, this extender only works with the "white" lens line which is a bummer...." Read more

52 customers mention47 positive5 negative

Customers are satisfied with the quality of the lens. They mention that it is built like a tank, and feels solid when they first touch it. Some say that it does not focus well in the corners, but is still decent in the center. Overall, most are happy with their purchase and recommend it to others.

"...I'm extremely happy with it, and have to say that on a high quality lens, like the 70-200/2.8 IS II, there is hardly any loss of functionality at all..." Read more

"...IQ takes a hard hit on the corners but is still decent in the center...." Read more

"I mean it's Canon, what else to add? Top quality stuff" Read more

"Great addition for the everyday photographer but has its limitations." Read more

30 customers mention21 positive9 negative

Customers like the value of the camera lens. They say it's an excellent tool to turn your $3, a very workable substitute for costly, heavy long reach lenses, and doubles distance for a fraction of the price. Customers also say it is quality at a price.

"...Overall, I am happy with the results I get and feel it is worth the price for the combination that I use for birding...." Read more

"...are prepared to manually focus on your subjects, this is a very cost effective way to get the long reach for wildlife shots, etc...." Read more

"...I just don't like the extra weight it adds on to the unit.it's a bit pricey too." Read more

"...Like most canon products, it is quality at a price." Read more

15 customers mention12 positive3 negative

Customers like the zoom range of the camera lenses. They say it's nice to double the zoom with their existing lenses, and it'll increase the focal length. Some say the images are super sharp and the extender is the best of all extenders. The lens and the expander are clean and no smudges are present.

"...The lens and the extender are clean and no smudges are present.To avoid vibrations, use a sturdy tripod." Read more

"...than just the 1D. Image quality is very good though and it's nice to double the zoom with my existing lenses." Read more

"This is the best of all extenders, in my opinion the images are super sharp and I'm using a 400mm f5.6L lens on a 7D, it gave me the Total focal..." Read more

"...arrived and the box of the extender is open and the extender is outside its own box, the packaging does not have plastic bubbles to prevent and..." Read more

13 customers mention13 positive0 negative

Customers are satisfied with the appearance of the lens. They mention that it is very well designed and built. Customers are also pleased with the quality of the pictures, saying that it produces very clean and crisp images with lovely clarity and color. They also mention that the teleconverter couples well with their 70-200 lens and that they are pleased with its clarity and detail.

"The photos were beautiful and gave me the range I needed for my bird photography, but I did ultimately return it...." Read more

"...mm IS II 2.8 and, even wide open at 400mm/5.6 I still get very clean and crisp images...." Read more

"...Canon makes very good glass and this is no exception." Read more

"...Excellent compatibility and the lovely clarity and color you expect from your Canon lenses...." Read more

13 customers mention13 positive0 negative

Customers are satisfied with the sharpness of the lens. For example, they mention that the shots are very sharp, and the clarity is good. Some say that the lens has a 2X extender mounted, but the glass is so sharp that it still works great. That said, most are happy with the quality and performance of the product.

"...If you have good light it will produce very good photos. The sharpness is very good considering there is a 2X extender mounted...." Read more

"...of new coating on the glass, this rugged and now very sharp tele didn't disappoint...." Read more

"...It made a significant difference in sharpness. If you have this feature on your camera you should do this for every lens." Read more

"The extender does extremely well and is sharp for shots on a tripod. Where I ran into issues were on action shots and low light shots...." Read more

64 customers mention19 positive45 negative

Customers are dissatisfied with the autofocus of the lens. They mention that it's nearly impossible to use, and the auto focus is a bit slower. Some say that the autofocusing does not work when looking through the viewfinder. They also mention that the lens is not fast enough and that the lack of autofocus makes it difficult to capture photos quickly enough.

"...the autofocus is nearly downright impossible and you may just be better off using full time manual..." Read more

"...One caution, naturally the autofocus is much slower with the 2X attached...." Read more

"...but this will attach to a 180L macro, and it does not effect the minimum focusing distance. I had a 360mm f/7.1 with a 15 inch focus distance...." Read more

"...Another con of this extender is that focusing is made much slower. Again, I knew this before buying the extender, but still find it frustrating...." Read more

51 customers mention32 positive19 negative

Customers have mixed opinions about the image quality of the lens. Some mention that it delivers great image quality with minimal reduction in focus speed, and produces really nice pictures. They also say that the pictures are sharp without any noticeable distortion. However, others say that it suffers too much from image degradation, and creates grainy, noisy, and softer images.

"...If you have good light it will produce very good photos. The sharpness is very good considering there is a 2X extender mounted...." Read more

"...There is some SLIGHT image degradation, to be expected, but it is not noticeable at all unless you are seriously pixel peeping...." Read more

"...In fact, it works surprisingly well and the picture quality is very good...." Read more

"...drags a bit, focus is better, when the image is acquired, closer shots are much better than a distant shots...." Read more

Excellent Teleconverter
5 Stars
Excellent Teleconverter
I contemplated on this one for over a year. I am a photographer and photography teacher so I am always taking photos. My students beg for sports pictures and sometimes I can’t get close enough to the action, well now I can. These photos were taken from the sideline of a football game and they were more than halfway across the width of the field. Sometimes the focus malfunctions but not that often. I’m using a 70-200 zoom from canon as well. It is heavy but manageable without a tripod. I definitely recommend buying this if you don’t want to spend the over $2,000 next level canon Zoom.
Thank you for your feedback
Sorry, there was an error
Sorry we couldn't load the review

Top reviews from the United States

Reviewed in the United States on February 2, 2013
105 people found this helpful
Report
Reviewed in the United States on October 31, 2013
3 people found this helpful
Report
Reviewed in the United States on September 4, 2012
One person found this helpful
Report
Reviewed in the United States on November 20, 2023
One person found this helpful
Report

Top reviews from other countries

Translate all reviews to English
Nestor Hernandez
5.0 out of 5 stars Great accessory for Canon EF sigma lens
Reviewed in Canada on October 16, 2023
Customer image
Nestor Hernandez
5.0 out of 5 stars Great accessory for Canon EF sigma lens
Reviewed in Canada on October 16, 2023
I've gotten beautiful photos with this extender. Didn't want to spend the amount but if it works without any defects guess it's worth it.

I use this with an Ef adapter with my Canon M50 and using the sigma 150mm - 600mm. Works well enough.
Images in this review
Customer image
Customer image
Saibal Mukherjee Calcutta
5.0 out of 5 stars Easy to use
Reviewed in India on October 13, 2019
One person found this helpful
Report
Gerhard Andessner
5.0 out of 5 stars x
Reviewed in Germany on December 27, 2018
James Anderson
5.0 out of 5 stars Glad I got it
Reviewed in the United Kingdom on November 6, 2018
Customer image
James Anderson
5.0 out of 5 stars Glad I got it
Reviewed in the United Kingdom on November 6, 2018
It arrived 4 days early - great excitement. But wasn't abler to use it until 2 days after arrival. Tried it with my 70-200 L series zoom on a Canon 7D2.
1. Very easy to fit onto the lens and camera, Felt solid and as if it belonged there.
2. shooting at f5.6 as lost 2 stops (expected) and at various settings.
The quality was, to me, entirely acceptable.
A ood purchase, to be recommended.
Images in this review
Customer image Customer image Customer image
Customer imageCustomer imageCustomer image
One person found this helpful
Report
Kilish
5.0 out of 5 stars Well worth the investment...
Reviewed in Canada on July 10, 2023
3 people found this helpful
Report