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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 26 Feb 2016 (Friday) 14:34
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canon extender 2x III

 
Flying ­ dragon
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Feb 26, 2016 14:34 |  #1
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can you doubled stack two extender 2x III with 70-200 Is version 2?




  
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LJ3Jim
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Feb 26, 2016 14:48 |  #2

You can stack a 1.4x III and a 2x III if you put a 12mm extension tube in between them. I suspect that would work with two 2x III extenders.


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Flying ­ dragon
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Feb 26, 2016 14:52 as a reply to  @ LJ3Jim's post |  #3
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will that degrade the quality for the zoom and pic?
Thanks




  
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2loose
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Feb 26, 2016 14:59 |  #4

Flying dragon wrote in post #17914046 (external link)
will that degrade the quality for the zoom and pic?
Thanks

Massively. Single 2x tc already degrade the pic quality and af of 70-200, cant imagine if you stack them.

Imo, 2X tc is perfect fo fast prime not for zoom.


Body:Canon EOS-5D Mark IV, Fuji X-T2
Lenses: Canon EF 85mm f1.2L II, Canon 24mm TS-E f3.5L II, Canon EF 24-70mm f2.8L II, Canon EF 100-400mm f4.5-5.6L IS II, Canon TC 1.4X III, Fuji XF 23mm f1.4 R, Fuji XF 35mm f1.4 R

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Tapeman
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Feb 26, 2016 19:33 |  #5

I have used that lens and one 2X with success. I doubt you would be happy with the results of two extenders.


Canon G1X II, 1D MKIV, 5DSR, 5DIV, 5D MKII, 16-35/2.8L II, 24-70/2.8L II, 70-200/2.8L IS II, IS, 100-400/4.5-5.6 L IS II, 500/4 L IS II, 24-105/4 IS, 50/2.5 macro, 1.4x MKII, 1.4X MKIII, 2X MKIII,580EX II, 550EXs(2), ST-E2.
Gitzo 1228, 1275, 1558, Lensbaby 3G. Epson 3880, Bags that match my shoes.:)

  
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fordmondeo
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Feb 28, 2016 06:37 |  #6

I understand the question was about the 2X extender, but I'd like to say my 70-200 2.8 is just as good with or without the 1.4X.
It is a bit disappointing to hear the loss of image quality is bad with the @x though.


Vaginator9000

  
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Tapeman
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Feb 28, 2016 09:24 |  #7

fordmondeo wrote in post #17916125 (external link)
I understand the question was about the 2X extender, but I'd like to say my 70-200 2.8 is just as good with or without the 1.4X.
It is a bit disappointing to hear the loss of image quality is bad with the @x though.

Image quality is NOT bad with the 2X MKIII on a 70-200L f2.8 IS II , just requires good light, better technique, and a tad more time to autofocus.
Before I bought my 100-400 it was my go to way to get to 400mm. (BTW there is a huge difference between Canon's MKII and MKIII 2X extenders.)

So the big question is "Am I going to be at that focal length often enough to justify the cost?"


Canon G1X II, 1D MKIV, 5DSR, 5DIV, 5D MKII, 16-35/2.8L II, 24-70/2.8L II, 70-200/2.8L IS II, IS, 100-400/4.5-5.6 L IS II, 500/4 L IS II, 24-105/4 IS, 50/2.5 macro, 1.4x MKII, 1.4X MKIII, 2X MKIII,580EX II, 550EXs(2), ST-E2.
Gitzo 1228, 1275, 1558, Lensbaby 3G. Epson 3880, Bags that match my shoes.:)

  
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Flying ­ dragon
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Feb 29, 2016 13:28 as a reply to  @ Tapeman's post |  #8
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i have two canon extender 2x III now thought I could stacked them but it doesn't fit.
now selling the extra one for 325.00




  
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Choderboy
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Mar 02, 2016 00:47 |  #9

Flying dragon wrote in post #17917900 (external link)
i have two canon extender 2x III now thought I could stacked them but it doesn't fit.
now selling the extra one for 325.00

Did you read post #2?


Dave
Image editing OK

  
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Flying ­ dragon
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Mar 02, 2016 08:29 as a reply to  @ Choderboy's post |  #10
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still trying to research it more with the extension tube and the (2) 2x Extender III but havent found any sample pics or review on it.




  
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PhotosGuy
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Mar 02, 2016 08:51 |  #11

2loose wrote in post #17914052 (external link)
Massively. Single 2x tc already degrade the pic quality and af of 70-200, cant imagine if you stack them.

Imo, 2X tc is perfect fo fast prime not for zoom.

I've used one with the 70-200 f/2.8 & it's not bad: F4U-5 Corsair

My not very effective test here makes me think it's not terrible at an effective f/11: 70-200 f/2.8 & 2X TC combination "Test"


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fordmondeo
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Mar 02, 2016 09:47 |  #12

I got the 100-400 today and with the 1.4X extender the quality loss is sadly noticeable.


Vaginator9000

  
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panicatnabisco
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Mar 02, 2016 10:16 |  #13

Flying dragon wrote in post #17920412 (external link)
still trying to research it more with the extension tube and the (2) 2x Extender III but havent found any sample pics or review on it.

No one wants heavily degraded IQ, so you would be hard-pressed to find anything like that


Canon 1DX | 6D | 16-35/2.8II | 24-70/2.8II | 50/1.8 | 70-200/2.8 IS II | 85/1.4 | 100/2.8 IS macro | 200mm f/2 | 400/2.8 IS II | 2xIII
Leica M8.2 | Noctilux 50 f/1 | Elmarit 90/2.8
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skid00skid00
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Mar 02, 2016 11:31 |  #14

fordmondeo wrote in post #17920479 (external link)
I got the 100-400 today and with the 1.4X extender the quality loss is sadly noticeable.

With my 100-400 version TWO and the 1.4x TC, my images are still fantastic. Are you talking about the older 100-400? Or an off-brand TC?




  
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Tapeman
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Mar 02, 2016 11:49 |  #15

I am happy with the 100-400L II and the Canon 1.4X MKIII extender.
I'll travel with it and leave my 500 at home unless I am specifically traveling to take photos.


Canon G1X II, 1D MKIV, 5DSR, 5DIV, 5D MKII, 16-35/2.8L II, 24-70/2.8L II, 70-200/2.8L IS II, IS, 100-400/4.5-5.6 L IS II, 500/4 L IS II, 24-105/4 IS, 50/2.5 macro, 1.4x MKII, 1.4X MKIII, 2X MKIII,580EX II, 550EXs(2), ST-E2.
Gitzo 1228, 1275, 1558, Lensbaby 3G. Epson 3880, Bags that match my shoes.:)

  
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canon extender 2x III
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