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FORUMS Cameras, Lenses & Accessories Canon Lenses 
Thread started 15 Jul 2010 (Thursday) 20:03
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Sigma lens locked down.

 
J.David
Member
212 posts
Joined Feb 2010
Location: Atlanta, Ga.
     
Jul 15, 2010 20:03 |  #1

The blades on my Sigma 17-35 ex lens are locked down in what seems to be f22. Any way to fix it yourself?


1DmarkIII ,5DmarkIII,7DII, 5 D, 40D,10 D , Canon 28mm 1.8, 35 f2, 50mm 1.8,1.4 85 1.8,Tamron 24-70 2.8, Canon 70-200,300F 2.8is L L 2.8
Canon 24-105L, Canon 17-40 L
550 ex, 430 1.4 ext.[URL="http://[URL]​www.flickr.com/photos/​jddsr/"][URL]http://ww​w.drybranchphoto.com

  
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phreeky
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3,515 posts
Likes: 15
Joined Oct 2007
Location: Australia
     
Jul 15, 2010 20:54 |  #2

So they stay locked down even when mounting on a turn-on camera?

Sounds brutal, but tried giving the lens a bit of a tap/knock?




  
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J.David
THREAD ­ STARTER
Member
212 posts
Joined Feb 2010
Location: Atlanta, Ga.
     
Jul 16, 2010 01:45 |  #3

phreeky wrote in post #10544899 (external link)
So they stay locked down even when mounting on a turn-on camera?

Sounds brutal, but tried giving the lens a bit of a tap/knock?

Thanks, looks like we have a authorized repair company in Atlanta if that does not work.


1DmarkIII ,5DmarkIII,7DII, 5 D, 40D,10 D , Canon 28mm 1.8, 35 f2, 50mm 1.8,1.4 85 1.8,Tamron 24-70 2.8, Canon 70-200,300F 2.8is L L 2.8
Canon 24-105L, Canon 17-40 L
550 ex, 430 1.4 ext.[URL="http://[URL]​www.flickr.com/photos/​jddsr/"][URL]http://ww​w.drybranchphoto.com

  
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Sigma lens locked down.
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