Focal issues with 24-105 L lens on 7D

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02-12-2013 10:37 AM
Recently purchased a 24-105 L lens for my 7D and have found that in many photos are out of focus. Shot a group yesterday and took over 50 photos. Although the photos look o.k. when you get up close it seems nothing in the entire photo is sharp. Is anyone else having this issue and is there a fix?
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02-12-2013 01:18 PM
Mine is really very sharp on my 6D.
1.) What other lenses have you shot with that you feel are working better for you?
2.) About this group shot: How big a group, and how bright or dim was it, and especially, what aperture were the shots taken? It can be impossible to get a whole group in focus if you are shooting at f/4.
If you can shoot at f/8 or f/11 and you still have enough light to keep the shutter speed over 1/100th, it would give you more keepers.
Canon 5d mk 4, Canon 6D, EF 70-200mm L f/2.8 IS mk2; EF 16-35 f/2.8 L mk. III; Sigma 35mm f/1.4 "Art" EF 100mm f/2.8L Macro; EF 85mm f/1.8; EF 1.4x extender mk. 3; EF 24-105 f/4 L; EF-S 17-55mm f/2.8 IS; 3x Phottix Mitros+ speedlites
Why do so many people say "FER-tographer"? Do they take "fertographs"?

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02-12-2013 02:56 PM - edited 02-12-2013 11:03 PM
Thanks for the info. It was only a group of 3 and yes mostly shot at F4. I cannot find anything in the entire photo that is sharp though. Maybe the shutter speed just is not fast enough as they were all under 1/100. Thanks again for the insight, very helpful!

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02-12-2013 07:20 PM
How many in the group and what was your F stop?
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02-12-2013 10:06 PM

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02-12-2013 11:01 PM
This is all new to me, can you describe how to test?
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02-12-2013 11:15 PM

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02-13-2013 06:58 AM
Have you tried with IS off?
There have been some reports of IS causing blurring with some copies (my copy is fine). So, if you had IS on, perhaps try some test shots with it on and off and see if you can see any difference.

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02-13-2013 09:51 AM
Info on testing would be fantastic, thank you very much. Also will do some test shots with IS off to see if it helps. Thanks everyone for the help..much appreciated!
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02-16-2013 07:29 AM
