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canon 2x III owners, are you satisfied?
  
 
therealthings
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p.1 #1 · p.1 #1 · canon 2x III owners, are you satisfied?


I'm looking into getting a 2x converter III for my 600 II. But i'm not sure if it's a good buy. I have seen a few images from Ari and he seems to be ok with it but rather not use it. However, i would like to read more opinions. Please share your thoughts.

Regards,

Marcus



Sep 16, 2017 at 03:35 PM
dgdg
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p.1 #2 · p.1 #2 · canon 2x III owners, are you satisfied?


If you need 1200mm, it rocks.
Might need a little MFA to make it tack sharp. Some have said it is slower, but better than no shot at all.



Sep 16, 2017 at 03:38 PM
therealthings
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p.1 #3 · p.1 #3 · canon 2x III owners, are you satisfied?




dgdg wrote:
If you need 1200mm, it rocks.
Might need a little MFA to make it tack sharp. Some have said it is slower, but better than no shot at all.


I am quite satisfied with the 1.4x III at 840mm but some very skittish birds would be better photographed at 1200mm, though i am not sure if the IQ is still good.



Sep 16, 2017 at 03:42 PM
dgdg
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p.1 #4 · p.1 #4 · canon 2x III owners, are you satisfied?


It's real good.
Of course you have more atmosphere btx you and your subject which can affect iq, but the 2x is great.



Sep 16, 2017 at 04:12 PM
hotdog12
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p.1 #5 · p.1 #5 · canon 2x III owners, are you satisfied?


I found out the hard way the 2X III does not work so well with the old 300 f/2.8 non-IS. The old 2X works a bit better.

But if you have a modern big white, I would definitely buy the 2X III if you need it. I get far more use with a 1.4X, however.



Sep 16, 2017 at 04:36 PM
pshyvers
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p.1 #6 · p.1 #6 · canon 2x III owners, are you satisfied?


I was not happy with mine paired with a 100-400 II, at f/11 it is very hard to focus.

On my 400 DO II I like it, and it focuses fine with the center f/8 point.

I was going to say that 1200mm is really long and might just be a frustrating experience even if optics are good (finding subject in frame, steadiness, atmospherics), but then I remembered that's around my effective FL on my cropper, and it's manageable.



Sep 16, 2017 at 04:44 PM
RobAmy
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p.1 #7 · p.1 #7 · canon 2x III owners, are you satisfied?


It works great with all the big whites I own

600mm v II

Bald Eagle @ 1200mm by A & R Photography, on Flickr

Red Bellied Woodpecker @ 1200mm by A & R Photography, on Flickr

Crested Caracara pair by A & R Photography, on Flickr

Northern Pintail by A & R Photography, on Flickr

Works great on the 400 DO II like already said

Sandhill Crane by A & R Photography, on Flickr

On the 800mm

Bluebird @ 1600mm by A & R Photography, on Flickr

On the 200-400 with the 1.4x engaged also

Northern Cardinal with 200-400mm with 2x by A & R Photography, on Flickr






Sep 16, 2017 at 05:11 PM
Abbott Schindl
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p.1 #8 · p.1 #8 · canon 2x III owners, are you satisfied?


I've used the 2X III with a 100-400L (II) and 500 f//4L (II) on 5DSr and 7DII cameras.

The image degrades slightly with the 500, but is still very good and very usable. Not as sharp as the bare lens or lens + 1.4 (III), but useful if you need the FL. I don't hesitate to use it if I need 1000mm, but frankly, I'm usually positioned well enough that 700mm (500 + 1.4) is plenty. AF with the lens and either extender is only marginally slower than the bare lens.

Different story with the 100-400, but I think that's really a function of the small max aperture, which at max zoom is f/11. That's pretty dark for the focusing sensors to do their job very well. Also, it's extremely hard to hold the camera still with the lens's collar. You have to manually focus and the slightest movement makes focusing impossible (for me). The only way I can use this combo is with remote focusing and release (both with CamRanger). With that setup, I've been very happy with the results, but f/11 is so constraining that I rarely use the combo.



Sep 16, 2017 at 05:19 PM
therealthings
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p.1 #9 · p.1 #9 · canon 2x III owners, are you satisfied?


Thanks guys, seems like a good buy then.


Sep 16, 2017 at 05:29 PM
evertdoorn
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p.1 #10 · p.1 #10 · canon 2x III owners, are you satisfied?


Does great with the 300 II. I will upgrade this lens to a 500 (wish I bought yours ) and def plan to keep it


Sep 16, 2017 at 05:53 PM
 

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Tapeman
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p.1 #11 · p.1 #11 · canon 2x III owners, are you satisfied?


I have been happy with mine mounted on the 500II and 5DsR. A tripod is the way to go for me, as 1000mm is tough to keep steady.


Sep 16, 2017 at 06:05 PM
thedutt
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p.1 #12 · p.1 #12 · canon 2x III owners, are you satisfied?


yes - with my 500 II on 5DIII and more or less on 7DII



Sep 16, 2017 at 06:12 PM
Mikehit
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p.1 #13 · p.1 #13 · canon 2x III owners, are you satisfied?


Mkii big whites were designed to be used with the mkiii extenders. I have no problems with my 400DO and the 2x on the 1Dx2. You also need to consider that the 2x extender takes the lenses to f8 and the best bodies for that seem to be the 5D4 and 1Dx2.

I am not sure about your comment regards Ari - I would hate to put words in his mouth but my impression is that if he can use the bare lens he will because that will always be superior, but given a choice of cropping vs 2x extender he sees no problem using the extender.



Sep 16, 2017 at 07:34 PM
Liquidstone
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p.1 #14 · p.1 #14 · canon 2x III owners, are you satisfied?


I've used 4 doublers so far (2x III, 2x II, Sigma 2x and cheapo Tamron 2x, arranged in order of IQ), and I'm satisfied with any of these as long as I use a sharp base lens. When focal length limited, on a big white, even the Tamron 2x gathers more detail than cropping.


Sep 16, 2017 at 11:26 PM
Kathy White
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p.1 #15 · p.1 #15 · canon 2x III owners, are you satisfied?



The only lens I use it with is my 400 DOII and I like it fine on it and use it often. Its gives me a way to get to 800mm that I can handle.



Sep 16, 2017 at 11:35 PM
arbitrage
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p.1 #16 · p.1 #16 · canon 2x III owners, are you satisfied?


I believe it is a worthwhile investment for reach limited subjects or just being able to put all the pixels on a small bird that isn't too far away.

The big issue I think is that people "overreach" with 1000mm and 1200mm and try for shots that they are still too far away from and you end up with a lot of atmosphere in between you and your subject. But if you use it to fill the frame or come closer to filling the frame it is a better option than cropping a 1.4TC shot if technique is good.

I will say I found it better on lower MP FF bodies like 5 series and 1 series. I got some good shots on high density sensors like 7D2 and 5DSR but it took a lot more effort.




  Canon EOS-1D X Mark II    EF600mm f/4L IS II USM +2x III lens    1200mm    f/8.0    1/2500s    1250 ISO    0.0 EV  






  Canon EOS-1D X Mark II    EF600mm f/4L IS II USM +2x III lens    1200mm    f/8.0    1/60s    2000 ISO    0.0 EV  






  Canon EOS 7D Mark II    EF600mm f/4L IS II USM +2x III lens    1200mm    f/8.0    1/800s    1000 ISO    0.0 EV  






  Canon EOS 7D Mark II    EF600mm f/4L IS II USM +2x III lens    1200mm    f/11.0    1/1600s    640 ISO    0.0 EV  






  Canon EOS 80D    EF600mm f/4L IS II USM +2x III lens    1200mm    f/8.0    1/500s    640 ISO    0.0 EV  



Edited on Sep 23, 2017 at 03:05 AM · View previous versions



Sep 17, 2017 at 01:52 AM
dgdg
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p.1 #17 · p.1 #17 · canon 2x III owners, are you satisfied?


I have a meager sampling of 2x joy for 1200mm focal length

Hand held 600mm II + 2x

























Sep 17, 2017 at 04:19 AM
therealthings
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p.1 #18 · p.1 #18 · canon 2x III owners, are you satisfied?


The resized pics look good but would love to see some crops as well if possible.
DxO shows a lot of image degradation on the chart with the 2xIII on a 600 II when used on a high density mp sensor of the 5dsr. Even at the center. But that's a chart, not sure what it does to e.g. fine feather detail.



Sep 17, 2017 at 08:44 AM
Mikehit
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p.1 #19 · p.1 #19 · canon 2x III owners, are you satisfied?


I think you are barking up the wrong tree. You use the 2x when it is a choice between using an extender or cropping the image - you then have loss of detail due to extender imperfections and loss of detail due to the lower number of pixels. I would always choose the extender. but as arbitrage so accurately observed there comes a point that neither method will give you more than record shots.


Sep 17, 2017 at 10:57 AM
therealthings
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p.1 #20 · p.1 #20 · canon 2x III owners, are you satisfied?


I fully understand that, just wondering how much of IQ loss there is judging by a crop.


Sep 17, 2017 at 02:05 PM
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