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Thread started 25 May 2011 (Wednesday) 00:13
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Purple Fringing with 24-105

 
GregoryF
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May 25, 2011 00:13 |  #1

I have noticed that my 24-105 L exhibits some pretty severe purple fringing with high contrast situations especially at the long and short ends unless it is stepped down to 6.3 or higher. I am using it on a 50D and it is much more pronounced than any of my other lenses. Is this a common problem with this lens or do you think I need to send it in? I will try to post some examples tommorrow, but it is very evident.


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GregoryF
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May 25, 2011 08:40 |  #2

Anyone??????


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tricky500
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May 25, 2011 08:42 |  #3

This is pretty common..


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gjl711
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May 25, 2011 08:42 |  #4

How bad is bad. All lenses will fringe to some extent but I have never noticed that the 24-105 is any worse than other lenses.


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GregoryF
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May 25, 2011 08:55 |  #5

It is bad. You do not have to look at a crop to notice it as it catches your eye immediately.


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gjl711
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May 25, 2011 09:02 |  #6

Post a sample.


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GregoryF
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May 25, 2011 09:48 |  #7

Here is an example: Shot @ 105mm f4. Raw converted in lightroom. The lens correction in lightroom 3.4 does not remove it.


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Invertalon
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May 25, 2011 10:36 |  #8

To be honest, I don't think I ever notice any purple fringing with my 24-105... Just CA towards the corners in various conditions.


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Snydremark
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May 25, 2011 10:45 |  #9

Ugh. I don't see that kind of fringing with my 24-105...but I don't normally shoot really high contrast things like that very often, either. LR's always been able to fix the fringing I *do* get with the profile correction.

Do you get this in shots where you've got a properly exposed subject, in situations that you normally shoot in? Or are you only seeing it in test shots like this one, where you're really stressing the system?


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GregoryF
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May 25, 2011 10:56 |  #10

Get with any high contras shot's; white clotheing, flowers, etc. This has been run through lightroom profile correction.


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GregoryF
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May 25, 2011 11:09 |  #11

Here is another example.


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shedberg
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May 25, 2011 11:19 |  #12

I've never seen that with my 24-105... I'd get it checked out by Canon.

I used to get it on my old 75-300 quite a bit.


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May 25, 2011 11:19 as a reply to  @ GregoryF's post |  #13

I was doing some shots yesterday of a Corvette with chrome rims and my 24-105 didn't show anywhere near that much purple fringing, even wide open. The chrome wheel against a black tire is about as much contrast as you can get shooting in bright sunlight too.


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May 25, 2011 11:27 |  #14

I'd have to agree with the other posters. I went back and looked at some of my pics taken with the 24-105 and though there is some purple fringing in high contrast pics, it doesn't look as noticeable as the samples you posted. I can see the fringing when pixel peeping but it's not noticeable when looking at the full image.

I'm wondering, do you have a UV filter on the lens? Just grasping, but I have seen filters cause IQ degradation.


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May 25, 2011 11:27 |  #15

i'm not saying the isn't any with mine but i will say i've never noticed it before even when i've viewed at 100% << that's general viewing for sharpening or whatnot though not actually looking for it specifically.


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Purple Fringing with 24-105
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