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Thread started 04 Apr 2012 (Wednesday) 21:26
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60D quality issues

 
Aquaticbob
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Apr 04, 2012 21:26 |  #1

So I have started shooting a lot with my 60D and I've been having some problems with quality. I'm not sure what it is, or how to really fix it but here is an example image close up so you can see the probelm:
http://img839.imagesha​ck.us/img839/5393/what​isthisl.jpg (external link)

As you can see there is what looks to be noise, this was taken at mid day with plenty of light.
A little note about that picture:
EF-S 17-85MM
F/11
Exposure of 1/160
100 iso

It's not my lens or the filter on the lens by the way. It does this with all my lenses and filters.
I'm not sure why my images are looking like this anyone able to help?




  
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watt100
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Apr 05, 2012 04:59 |  #2

Aquaticbob wrote in post #14211515 (external link)
So I have started shooting a lot with my 60D and I've been having some problems with quality. I'm not sure what it is, or how to really fix it but here is an example image close up so you can see the probelm:
http://img839.imagesha​ck.us/img839/5393/what​isthisl.jpg (external link)

As you can see there is what looks to be noise, this was taken at mid day with plenty of light.
A little note about that picture:
EF-S 17-85MM
F/11
Exposure of 1/160
100 iso

It's not my lens or the filter on the lens by the way. It does this with all my lenses and filters.
I'm not sure why my images are looking like this anyone able to help?

all I'm seeing is a small picture of the sky and the EXIF data is not attached. Hard to tell. Try uploading a larger photo to flickr or photobucket, etc. (and use a larger aperture, say f8)




  
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sandpiper
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Apr 05, 2012 05:24 as a reply to  @ watt100's post |  #3

You can sometimes get speckling in the sky (or other near solid colours) with jpeg compression, particularly if you play around with it again later. That could be what has happened here.




  
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similae
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Apr 05, 2012 05:25 |  #4

Aquaticbob wrote in post #14211515 (external link)
So I have started shooting a lot with my 60D and I've been having some problems with quality. I'm not sure what it is, or how to really fix it but here is an example image close up so you can see the probelm:
http://img839.imagesha​ck.us/img839/5393/what​isthisl.jpg (external link)

As you can see there is what looks to be noise, this was taken at mid day with plenty of light.
A little note about that picture:
EF-S 17-85MM
F/11
Exposure of 1/160
100 iso

It's not my lens or the filter on the lens by the way. It does this with all my lenses and filters.
I'm not sure why my images are looking like this anyone able to help?

Looks like JPG compression in that sample picture, difficult to tell anything else. Do you shoot RAW?


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aximrocks
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Apr 05, 2012 06:13 as a reply to  @ similae's post |  #5

Disable the "high tone priority" feature


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mike_311
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Apr 05, 2012 06:17 |  #6

this isnt full size, how far in did you crop?


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Daship
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Apr 05, 2012 07:57 |  #7

"Happens with all lenses and filters" Well cheap filters would be my first suspect. You put a $5 piece of glass on the end of the best lens available and it is going to downgrade the image. Don't use cheap filters.

The above suggestions are good to.




  
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John ­ from ­ PA
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Apr 05, 2012 08:31 |  #8

All the advice given so far is good, based especially on what you have provided to work with in rendering help.

One thing I would do is shoot at a higher shutter speed. Watt100 suggested getting the aperture to the f/8 area, probably very near the sweet spot for the 17-85mm. One simple way to do that would be to bump up the shutter speed to about 1/400 sec. OK, why? Yes the general rule of thumb is you can hand hold a lens at a shutter speed at the reciprocal of the focal length. So even at 85mm your MINIMUM shutter speed is 1/85 sec. IS helps but a lot is still very dependent on the ability of the photographer; make sure you aren't pushing your limitations.




  
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Emergency ­ Exit
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Apr 05, 2012 08:40 |  #9

The 100% crop shows what seem to me like JPEG artifacts. Are you shooting JPEGs at lower quality by any chance? (There are two options - normal and fine quality)


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stsva
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Apr 05, 2012 08:46 |  #10

You'll find a fair number of posts about the 7D on POTN and other forums talking about its tendency to produce noise in blue skies and other featureless blue areas even at lower ISOs. I suspect the same thing may happen with the 60D, since the two cameras have similar sensors. Assuming that's the cause, and not JPEG artifacts, the easiest way to deal with it is to apply noise reduction in ACR or Lightroom as part of your post processing; another thing that helps is to do selective sharpening with the sky masked off so that the blue noise is not sharpened and hence made more visible.

See this thread http://photo.net …gital-camera-forum/00YbcZ (external link) on another forum, starting with the post by Paul De Ley, for more on this issue and some suggested solutions (including not pixel-peeping ;)).

By the way, welcome to POTN! :)


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watt100
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Apr 05, 2012 12:12 |  #11

Emergency Exit wrote in post #14213814 (external link)
The 100% crop shows what seem to me like JPEG artifacts. Are you shooting JPEGs at lower quality by any chance? (There are two options - normal and fine quality)

if it is a severe crop then that's a likely reason




  
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lankforddl
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Apr 05, 2012 12:27 as a reply to  @ watt100's post |  #12

looks totally normal to me.


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crn3371
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Apr 05, 2012 12:32 |  #13

Looks like a pretty severe crop. Looks pretty normal to me. More info would help, as would the uncropped image.




  
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Aquaticbob
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Apr 05, 2012 13:15 as a reply to  @ crn3371's post |  #14

So that is just a crop of an image that came from a raw file. That was at 100%. I opened it with photoshop and applied nothing to it, just converted to JPEG. Some other people told me it could be chromatic aberration as well. The full picture can be viewed as this (reduced to 2560x1707:
http://img12.imageshac​k.us/img12/8088/img190​6mb.jpg (external link)

I also don't use 5$ glass. I had a B+W UV filter on there




  
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stsva
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Apr 05, 2012 13:17 |  #15

Aquaticbob wrote in post #14215240 (external link)
So that is just a crop of an image that came from a raw file. That was at 100%. I opened it with photoshop and applied nothing to it, just converted to JPEG. Some other people told me it could be chromatic aberration as well. The full picture can be viewed as this (reduced to 2560x1707:
http://img12.imageshac​k.us/img12/8088/img190​6mb.jpg (external link)

I also don't use 5$ glass. I had a B+W UV filter on there

It's not chromatic aberration; that slight color fringe you can see along the tops of the trees in the background and along the left side of the sign is chromatic aberration. You did get some lens flare and color effect on the right because of the sun. Why not try another blue sky shot at a higher focal length so the sky will occupy more of the image, and post a 100% crop of that? Maybe do it with and without filter; although I don't think the filter has anything to do with what you're getting, you won't know for sure unless you try it both ways.

Also, it looks like there are several dark dots toward the right side of your image - unless those were birds you might want to check your sensor for dust.


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60D quality issues
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