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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 30 Jan 2011 (Sunday) 18:02
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? with a sigma 150-500 lens

 
sbumps
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Jan 30, 2011 18:02 |  #1

Will a Canon Extender EF 1.4x II work with a Sigma 150-500mm f/5-6.3 DG APO OS and if it does work what kind of results do you think it will produce. Thanks for any help or advise.




  
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Josh13
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Jan 30, 2011 18:37 |  #2

Not 100% on this but it should. I believe canon and sigma tc's are the same and the sigma does work on the 150-500. I think the tamron and kenko tc's will will fit any EF lens cause they do not protrude in to the rear of the lens the way the canon and sigma ones do.


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tomj
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Jan 30, 2011 18:45 |  #3

My understanding is that the Canon extenders are only compatable with certain Canon prime L lenses. I have heard of people using Sigma or Kenko, however. You will lose one stop, which may cause you to lose autofocus, or at best slow it down. It may also cause a loss of sharpness. My experience with this lens (mostly birds) is that it leaves something to be desired in terms both autofocus and sharpness - I wouldn't want to use something that would cause further degrading.


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skater911
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Jan 30, 2011 19:13 as a reply to  @ tomj's post |  #4

I don't know that I would use one on this lens. I am finding that the sweet spot is around f8 or f10, adding a 1.4 will lose another stop and you need good light to begin with.


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sbumps
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Jan 30, 2011 19:30 |  #5

It was just a thought, I order a new 150-500 today. We will see what happens next week or so. Thanks




  
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GMHY
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Jan 30, 2011 19:31 |  #6

It should work with the Canon Tele Converter since it works with the Kenko TC 1.4 equivalent (and also with the 2.0) - at the cost of AF though, you will have to focus manually.
As for quality, you need to be around f/9 / f/10 for good sharpness (but anyway the Sigma should not be used wide open if looking for max sharpness).

As for quality, it's possible to get good results, provided the subject keeps quiet a little while (MF!):

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artyman
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Jan 31, 2011 04:03 |  #7

The Sigma 1.4 works pretty well on the 150-500 albeit mandraulic focusing. Heres a crop from a shot at 700mm bird probably about 1/4 mile away

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Gedanken
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Jan 31, 2011 04:20 |  #8

The Canon 1.4 won't fit the Bigmos.


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DreDaze
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Jan 31, 2011 17:56 |  #9

Josh13 wrote in post #11744840 (external link)
Not 100% on this but it should. I believe canon and sigma tc's are the same and the sigma does work on the 150-500. I think the tamron and kenko tc's will will fit any EF lens cause they do not protrude in to the rear of the lens the way the canon and sigma ones do.

i think you've got it backwards...the canon will only fit on a few lenses...while the kenko will fit on most any EF mount i think...there might be a few that don't work...

i'd guess that the canon won't fit on it...the kenko works, and with the tape trick you can retain autofocus


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Shane ­ W
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Jan 31, 2011 18:42 |  #10

OK, i have been reading up on this subject for a while because I am looking at one of those big sig zooms and have a Canon 1.4. Canon's will only work with a handful of L lenses. The consensus is that the Kenko TelePlus Pro 300 DGX is the best option in terms of fitting more brands and having pretty good IQ. Search it under the bird or wildlife discussion pages!


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sbumps
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Jan 31, 2011 18:49 |  #11

Well if this is the case I will have a 6 months old Canon 1-4 II tele converter for sale. I sold my 300 F4 L IS afew days ago and I won't be needing it.




  
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moraleda
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Feb 01, 2011 16:00 |  #12

I've got sigma 150-500 and kenco 3x :D. They work fine, whit focus manually :rolleyes:. But If I want very good photos, I've to take them in sunny days.:cool:


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moraleda
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Aug 13, 2011 09:23 |  #13

Pequenes (Sigma 150-500 and Teleconverter Kenko 1,4X) por riobiobio (external link), en Flickr

IMAGE: http://farm7.static.flickr.com/6026/6018222645_b5899903fd_z.jpg
IMAGE LINK: http://www.flickr.com/​photos/riobiobio/60182​22645/  (external link)
Churrete (Sigma 150-500 and Teleconverter Kenko 2X) (external link) por riobiobio (external link), en Flickr
IMAGE: http://farm7.static.flickr.com/6194/6026678051_802f9fb6d6_z.jpg
IMAGE LINK: http://www.flickr.com/​photos/riobiobio/60266​78051/  (external link)
[URL=http://www.flickr​.com/photos/riobiobio/​6026678051/]

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https://www.flickr.com​/photos/riobiobio/ (external link)

  
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dfbovey
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Aug 13, 2011 09:36 |  #14

I'm looking into getting a 1.4x TC for this lens as well. Kenko looks like the best option?

I'm assuming no autofocus on a 7D?


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Aug 13, 2011 10:57 |  #15

dfbovey wrote in post #12927934 (external link)
I'm looking into getting a 1.4x TC for this lens as well. Kenko looks like the best option?

I'm assuming no autofocus on a 7D?

there's a pretty substantial drop in i.q. in my opinion...didn't you just pick this lens up(saw it in the archive thread)

if so wait a bit and just use the lens on it's own, and crop if need be...if i didn't already have a kenko 1.4 TC i wouldn't buy it just for this lens


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? with a sigma 150-500 lens
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