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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 08 Jun 2015 (Monday) 10:02
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24-70 f2.8 II Issue

 
Maze4
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9 posts
Joined Jul 2014
Location: Pittsburgh, Pa
     
Jun 08, 2015 10:02 |  #1

I just got this lens a few months age and finally had a chance to shoot with it. After reviewing the images I noticed there is a dramatic drop off in focus just on the right side of the images. Never experienced this and am trying to figure out if it's the lens or camera 5D mk iii. The set up was single row of people (12) centered in the frame shot fairly loose so they are within the confines of all af points. Shot at 28mm F5 iso 100 and 1/200 sec. Any help would be appreciated.


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Sir_Loin
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543 posts
Gallery: 4 photos
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Joined Oct 2010
Location: Leicestershire UK
     
Jun 08, 2015 12:01 |  #2

Maze4 wrote in post #17588754 (external link)
I just got this lens a few months age and finally had a chance to shoot with it. After reviewing the images I noticed there is a dramatic drop off in focus just on the right side of the images. Never experienced this and am trying to figure out if it's the lens or camera 5D mk iii. The set up was single row of people (12) centered in the frame shot fairly loose so they are within the confines of all af points. Shot at 28mm F5 iso 100 and 1/200 sec. Any help would be appreciated.

Posting a picture would greatly help people diagnose the problem, but I'll go out on a limb here and suggest it could be a de-centred element.


EOS-1D MkIV, EOS 5D MkIII, EF 24-70mm f/2.8L II, EF 70-200mm f/2.8L IS II, EF 14mm f/2.8L II, EF 24mm f/1.4L II, FD 50mm f/1.2L, EF 50mm f/1.8 STM, EF 85mm f/1.2L II, EF 100mm Macro f/2.8L IS, EF 300mm f/4.0L IS, FD 300mm f/2.8L * EOS M5, EOS M3, EF-M 11-22mm f/4.0-5.6 IS, EF-M 18-55mm f/3.5-5.6 IS, EF-M 55-200mm f/4.5-6.3 IS, EF-M 22mm f/2.0, EF-M 28mm f/3.5 Macro IS * Speedlite 580EX II, Speedlite 430EX III-RT

  
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EchoShotz
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310 posts
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Joined Feb 2014
Location: Knoxville, TN
     
Jun 08, 2015 12:02 |  #3

Decentered element sounds about right. Sounds similar to an issue I saw with a decentered rokinon 24mm


5D Mark III, 70-200 f/2.8L, 24-70 f/2.8 L, YN560 (2x)
-Kenny

  
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24-70 f2.8 II Issue
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
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