cbzywxrstquzzybqtrqvcb

REVIEW SNAPSHOT®

by PowerReviews
CanonExtender EF 2X III
 
4.4

(based on 448 reviews)

Ratings Distribution

  • 5 Stars

     

    (283)

  • 4 Stars

     

    (116)

  • 3 Stars

     

    (24)

  • 2 Stars

     

    (15)

  • 1 Stars

     

    (10)

93%

of respondents would recommend this to a friend.

Pros

  • Strong construction (201)
  • Easily interchangeable (184)
  • Durable (148)
  • Rugged (120)
  • Consistent output (117)

Cons

  • Poor in low light (75)
  • Slow focus (49)
  • Heavy (29)
  • Blurry focus (14)
  • No increase in performance (3)

Best Uses

  • Wildlife photos (221)
  • Sports/action (130)
  • Landscape/scenery (110)
  • Shooting outdoors (67)
  • Weddings (26)
    • Reviewer Profile:
    • Photo enthusiast (120), Semi-pro photographer (105), Pro photographer (43), Tech savvy (29), Casual photographer (17)
    • Was this a gift?:
    • No (345), Yes (14)

Most Liked Positive Review

 

Nice addition.

I am very surprised with this extender. I am using this on a 5D Mark III with the 70-200 f/2.8 IS II. I read several reviews saying the image wasn't very sharp...Read complete review

I am very surprised with this extender. I am using this on a 5D Mark III with the 70-200 f/2.8 IS II. I read several reviews saying the image wasn't very sharp but I am getting some great results with it (even hand held.) Just remember to double the shutter speed compared to your zoom to get the best results. So if you are shooting at 200mm with the 2x extender you will be at 400mm so your shutter speed will need to be at least 1/800 to get the best results. If you are on a tripod you can get away with a slower shutter but I try to keep it at least equivalent to the lens. I will attach a quick photo I shot from 20ft away at 400mm total and then the cropped version to see all the detail.

The compatibility chart says, "If the EF 70-200mm f/2.8L USM 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 usable for AF". But, to my surprise, ALL of my focus points are working with this lens and the 2x extender. I had to go back and re-read it to make sure I wasn't misunderstanding, but EVERY focus point is working even though it says only the center focus point would be useable. The only drawback I can see so far is the focus is much slower to find it's mark in low light but seems to be great with well lit subjects. So maybe the message is for older cameras?

One other thing I have noticed but haven't had time to do a real test is the depth of field. The loss of light is as it should be by doubling the 2.8 to 5.6 but the depth of field doesn't seem to follow what I expected. Normally if I am shooting a subject at f5.6, I would have a deeper focus area. With the extender, I seem to be getting a really shallow depth of field as if I were still shooting at 2.8. So to get some more usable focus depth I have to stop it down to 7.1 or higher (as you can see in photos below shot at f9). I actually like the really shallow depth I am getting since I mostly shoot artistic shots and modeling but I could see how this would be a problem with sports and such and may be the reason some people are getting some softer results. And again, I haven't had time to completely test this theory.

So, to sum it up. I have had very sharp results with the 2x Extender as long as I keep the shutter at the proper speed. It is a great way to double your compatible lenses (will not work with incompatible lenses because of the way part of it slides into the lens.) And, on my 5D Mark III with the 70-200 2.8 IS II, ALL the focus points are working. I love having a small way to basically have the zoom of a 400 without carrying the extra bulk and the cost. If I were shooting sports or such for a living, I would buy the proper lens. It does lose focus speed relative to the amount of light available and in lower light may not focus at all unless you can find a hard edge to catch.

VS

Most Liked Negative Review

 

Disappointed

I had never tried a 2X before, thinking it might be too good to be true. But with the new series III, I thought it might be OK on a high-quality prime lens. ...Read complete review

I had never tried a 2X before, thinking it might be too good to be true. But with the new series III, I thought it might be OK on a high-quality prime lens. I went out for the day with my 7D and the 2x extender attached to a 500mm f4 IS lens. During the shooting (birds at considerable distance), I revelled in the closer view I was getting. However, back at the computer, I wasn't so happy. I am used to getting crisp feather detail on bird images, having learned good technique over about 5 years of serious practice with wildlife, shooting with Canon gear, most shots using the above 500mm lens with a 1.4X Extender. There was no crisp detail in any of the shots with the 2x. Even with ambitious post-processing from RAW, they were throwaway shots. The best single descriptor I had for the shots was "mush".

To be sure it wasn't just a bad day, I set up a controlled situation indoors. Mounted to a sturdy Gitzo tripod, with mirror locked up, etc., I took photos with just the 500mm lens mounted, then the 1.4X, then the 2.0X, all of the same subjects. Later I compared them on the computer, with the same results I got in the field; the 500mm results were sharp, the 1.4X a little less so but still very good, and the 2.0x result were garbage. Here was the decisive test: I resized the test photos from the 500mm alone by a factor of 2.0 in Photoshop, something no sane photographer would do to achieve a better result. However, the resulting images were sharper than those taken with the 2.0X extender. In short, the 2.0x not only did not provide and benefit, it was actually detrimental. I concluded I would get better results by shooting with the 500mm alone and cropping to fill the frame with the bird. Fortunately, I bought this from B&H rather than from someone on an on-line auction site or a lesser retail company. They took it back in a completely pleasant and business-like manner. Thank you, B&H.

This results still confuses me. The people at Canon are no dummies, so why would they make something that provides no benefit? I have no answer to that. It is just possible that I had a defective unit, so before you use this review alone to make your decision, search for others.

Reviewed by 448 customers

Displaying reviews 1-20

Back to top

Previous | Next »

 
5.0

Love it

By Kevin

from undisclosed

Verified Buyer

Comments about Canon Extender EF 2X III:

Gives me the extra teach I need for sporting events

 
5.0

Yes

By Eugene

from undisclosed

Verified Buyer

Comments about Canon Extender EF 2X III:

Works well

 
5.0

Well worth the money

By Dylan

from undisclosed

Verified Buyer

Comments about Canon Extender EF 2X III:

I am big on wildlife photography and was looking at the Canon Extenders for more reach. While the smaller loss of light from the EF 1.4x was more attractive, it wouldn't even give me the focal lengths I needed. Even though you lose more light with this baby, it is well worth the investment. With this on my Canon 70-200mm f/2.8 IS II USM Lens, it works just as intended, if not better. If you are looking at the Canon 100-400mm, get this Extender and the 70-200mm instead. This way, you have a constant max aperture. Oh, and I only buy Canon.

 
4.0

Nice addition to the bag..

By Don

from undisclosed

Verified Buyer

Comments about Canon Extender EF 2X III:

I t works.. AF works fine.. great accessory to have, next purchase will be the 1.4...

 
5.0

Excellent Teleconverter

By Rick

from Pasadena, Ca

Verified Buyer

Comments about Canon Extender EF 2X III:

Excellent

(0 of 1 customers found this review helpful)

 
5.0

Fast delivery

By Triin

from undisclosed

Verified Buyer

Comments about Canon Extender EF 2X III:

Very good and fast delivery.

 
5.0

Great purchase

By Anthony

from undisclosed

Verified Buyer

Comments about Canon Extender EF 2X III:

Works exceptionally well with Canon 70-200 F2.8 II

(0 of 1 customers found this review helpful)

 
5.0

great extender, no issue with AF

By Janelle

from undisclosed

Verified Buyer

Comments about Canon Extender EF 2X III:

Excellent addition to my telefoto lenses!

 
5.0

Two in my bag

By Rob

from Maine

Verified Buyer

Comments about Canon Extender EF 2X III:

I carry 2 each of the 2x and 1.4x which I use mostly on a 300mm which gets me to 420 and 600
and
500 which gets me to 700 and 1000
Will not work on autofocus with lenses over f 4.0
Images are still sharp with minor loss

 
5.0

Works as it Should

By Bernard

from Linden, NJ

Verified Buyer

Comments about Canon Extender EF 2X III:

This product is easy to use and of excellent build. Images appear to be sharp.

 
5.0

Works As it Should

By Bernard

from undisclosed

Verified Buyer

Comments about Canon Extender EF 2X III:

This product is easy to use and it works as it should. It's of excellent build. Images appear to be sharp.

 
5.0

The best

By Julian

from undisclosed

Verified Buyer

Comments about Canon Extender EF 2X III:

Exelent product i use with my 200mm 2.8L ii and i very happy wiht the results

(2 of 2 customers found this review helpful)

 
5.0

A must for all photographers

By Mrs Ellis

from Undisclosed

Comments about Canon Extender EF 2X III:

Great addition when you can't yet purchase the larger lenses. Beautiful quality and clarity!

 
4.0

Would not work with all my existing lenses

By Magic Marker

from Hobe Sound, FL

Verified Buyer

Comments about Canon Extender EF 2X III:

Unfortunately, I didn't know that the Canon 2x III extender would not work with my greater than f/4 lenses. Had to send it back. The old 1.4x does work well! If Canon makes it and B&H sells it it's bound to be good.

(2 of 2 customers found this review helpful)

 
1.0

Poor quality image--not as expected.

By Glenn

from undisclosed

Verified Buyer

Comments about Canon Extender EF 2X III:

I purchased this 2X Extender with much anticipation and excitement. When I used it, the images were, indeed, twice as large. The problem occurred when I put the image on the computer and critiqued it. When used with my Canon 500mm lens, the image quality was considerable less than with the lens only. When I cropped and enlarge the image with the 500mm lens without the 2X Extender, I could see much more detail than in an image with the extender--even though the extender image was 2 X as large. Fortunately, I purchased the Extender from B&H and was able to return it. I really did want this extender to work, but just too good to be true when closely examining it on the computer.

 
2.0

Quality Control Issue ?

By Steve

from undisclosed

Verified Buyer

Comments about Canon Extender EF 2X III:

Not sure about this one. I have had two copies, and neither were perfect. The second one did not work on my Canon 6D. On my 7DMK2 IQ was great, but, AF worked strangely. It would do all modes at times at first, then later would not do zones, or expanded. Again, IQ was very good, but, if you cannot focus, does that really mater ? I hope it is a quality control issue, and I will try one more time. Sadly, or happily for me, my third party Tamron Extender works like a champ on both camera bodies and all L lenses. Come on Canon !

 
5.0

Fantastic Extender EF 2X III.

By Regis

from undisclosed

Verified Buyer

Comments about Canon Extender EF 2X III:

I just got a new Canon do f4 400mm II lens. Both the Canon 1.4x III and the 2.0x III work well with this new lens. Also, my Canon 100-400 II lens will work with the 2.0x III if you use the live action part of my Canon 5Dsr camera.

(0 of 7 customers found this review helpful)

 
4.0

too much to fill in

By Sam

from Vancouver

Comments about Canon Extender EF 2X III:

hobo

 
5.0

Would recommend this product

By David

from undisclosed

Verified Buyer

Comments about Canon Extender EF 2X III:

I was worried about buying this extender because of all the bad reviews with regards to image quality with the use of extenders. However linked with my Canon 7D Mark II and the Canon 70 200 Mark II lens this extender gives great image quality. Had a chance to use the combination for photographing a friends childs soccer game. Images were fantastic.

 
2.0

Not as expectd.

By Glenn

from Undisclosed

See all my reviews

Site Member

Comments about Canon Extender EF 2X III:

I have tried this product with my Canon 500 mm and my Canon 70-200 mm lenses. While it does give a 2 X larger image that at first seems impressive, it loses considerable quality when put on the computer and carefully evaluated. I actually found considerable better quality with an image taken with the lens without the 2 X extender that had been cropped and enlarged than the image taken with the extender. I tested the extender with the 2 above mentioned lenses on a considerable number of wildlife photos, the moon, and with other objects used solely or the purpose of comparison. Anyone who states that it is "great" simply are not detailed enough in their evaluations.

I really did want this tele-extender to work, but it was just to good to be true. I wish it had.

Displaying reviews 1-20

Back to top

Previous | Next »