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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 08 Apr 2013 (Monday) 20:53
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Chromatic Aberration & Fringing

 
mclaren777
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Apr 10, 2013 15:06 |  #16

mike_311 wrote in post #15812521 (external link)
its very easy to remove in post...

It's somewhat easy on one image, but when you need to correct a large number of them, it gets old really quickly.

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mike_311
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Apr 10, 2013 15:29 |  #17

with ligthroom you can apply a lens profile during an import.


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Copidosoma
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Apr 10, 2013 18:26 as a reply to  @ mike_311's post |  #18

Using the lens corrections in DPP usually works well.

If not, this: http://www.youtube.com​/watch?v=dixMfNcVu-E (external link) also works.


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sapearl
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Apr 10, 2013 19:10 |  #19

mclaren777 wrote in post #15812741 (external link)
It's somewhat easy on one image, but when you need to correct a large number of them, it gets old really quickly.

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Also, if you're shooting RAW in ACR you can apply the change globally across a series of images saving a tremendous amount of time. That is quite a harsh example.....if I may ask what lens were you using and does it do that quite often mclaren?


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Apr 10, 2013 19:10 |  #20

airfrogusmc wrote in post #15811431 (external link)
You haven't seen the images from the 200 2L then. The bokeh is as good as it gets (better than my 85L) and virtually no C/A. THe 300 2.8 and the 400 2.8 are also almost C/A free.

I am no optics expert, but think about it. The longer focal lengths has two advantage I can think of.
Longer lens compresses the image so once the outside the DOF focus range, the "out of focus" blur appears to deteriorate to oblivion very quickly. So you get nice creamy blur with less effort than shorter lens. Also CA is easy to control because the narrow view angle means less acute light bending, therefore the light spectrum meeting at the nodal point is more precise. There is less need for the lens designer to create more CA to get the OOF to deteriote faster since he has the compression of image on his side.


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snake0ape
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Apr 10, 2013 19:26 |  #21

mclaren777 wrote in post #15812741 (external link)
It's somewhat easy on one image, but when you need to correct a large number of them, it gets old really quickly.

For all the work we do on post processing, moving an eye dropper to the purple line is relatively painless.
If you shoot JPEG, I believe the newer cameras removes CA and fringes automatically. But don't mark my words since I dont JPEG too much nor let the camera do this kind of work.


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Chromatic Aberration & Fringing
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