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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 18 Nov 2010 (Thursday) 17:13
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Anyone use a Canon 100-400 w/ 2X converter?

 
StellaBlue71
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Nov 18, 2010 17:13 |  #1

Maybe a shot or two if you have used it. Thanks for any input..


T2i w/ Grip :18-55mm IS, 28mm f/1.8, 85mm f/1.8, 70-200 f/4L, 100-400mmf/4.5-5.6L IS, 430ex II

  
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Wallace ­ River
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Nov 18, 2010 17:16 |  #2

I've tried it unsuccessfully. I wear glasses and the manual focus is a deal-breaker for me. I did try the taping the contacts thing to no avail (I may have done it wrong, got an error code). Whenever I did try, it was a bright day, so seeing the viewfinder to try to focus properly, I couldn't see it well enough to get a good focus. Good luck though! ;)


IAN - Living life on the shores of the Wallace River in northern Nova Scotia, Canada :
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crn3371
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Nov 18, 2010 17:20 |  #3

The 100-400 generally doesn't play with with tcon's. A 1.4 maybe, but not a 2x. No AF with either, and with the 2x you're starting at f11 so you better have plenty of light.




  
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yowzer
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Nov 18, 2010 17:22 as a reply to  @ Wallace River's post |  #4

While not the best shot, just a quick grab at 400mm w/2x TC it should give an idea what the combo can do.

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5Dmkii - Gripped - Kirk 'L' Bracket, 100mm L IS, 24-70mm L, 70-200mm L IS, 100-400mm L IS, Sigma 12-24mm, Canon 2x TC, 580EX II, 60D - Gripped - Kirk 'L' Bracket, 18-135mm IS, Gitzo 3541LS, Kirk BH-1
http://www.flickr.com/​photos/d_swanson (external link)

  
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b-rice
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Nov 18, 2010 17:22 as a reply to  @ crn3371's post |  #5

Well unless you have a 1D series it won't autofocus. I've taken some with my 300D and my 1.4x, deleted them though. I'll go out and take some tomorrow with them haha.




  
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richardfox
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Nov 18, 2010 17:30 |  #6

The 100-400 does work well with both the 1.4x and 2x TC's IF you manual focus. It's not that easy, especially with moving targets like birds and animals. Been there and done that. However, I can't complain too much about IQ. I don't see a huge difference in IQ with either TC on. I've also stacked both TC's onto the 100-400 for some shots of the moon, and this worked out quite well...

That's also why I invested in a 300 2.8. It's autofocus with either TC. If I don't need the zoom, I go with the 300 2.8. If I need the zoom (or extreme range), it's the 100-400.

Resize lost quality, but this shot of the moon was with the 100-400 stacked with 2x TC and 1.4x TC. The RAW file is wild sharp!


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Canon 50D gripped, EF 50/1.8, EF-S 10-22, 17-40L, 24-105L, 70-200 f/2.8L, 100/2.8 macro, 100-400L, 300 2.8L, Canon 500 f8 mirror with chipped EF mount, 580EX, 1.4x and 2x Canon teleconverters, Canon EF Life-Size converter.

  
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JeffreyG
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Nov 18, 2010 17:35 |  #7

There are limited applications of 800mm f/11 MF lenses I suppose. I've only used the 100-400 with the 1.4X and it's OK.


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I use a Canon 5DIII and a Sony A7rIII

  
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StellaBlue71
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Nov 18, 2010 17:38 |  #8

Thanks for all the good input...


T2i w/ Grip :18-55mm IS, 28mm f/1.8, 85mm f/1.8, 70-200 f/4L, 100-400mmf/4.5-5.6L IS, 430ex II

  
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h14nha
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Nov 18, 2010 18:29 |  #9

Have you anything specific in mind to use it for ? I would think your going to need really good light to get a great shot. The 100-400 likes a lot of light when its bare so losing the extra stops will be something you would need to take into account.
Like others I have only used it with a 1.4x so cant help you with a 2x picture sorry. You will lose auto focus on your T2i with either a 1.4x or a 2x though, if your target is static then thats not so much an issue.


Ian
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Anyone use a Canon 100-400 w/ 2X converter?
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