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Old Jun 5, 2011, 12:21 PM   #1
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Default Problem with Canon digital SLR's? Chromographic aberration?

Hi,

I am looking for a new digital SLE - my first.
I was trying decide between the Canon t3i and Nikon 5100.

I have been a long time user of Canon P&S cameras & like them alot, but when I look at the images for all of the digital SLR's listed in Steves "best camera" section, I see what I understand to be Chromographic aberration in all of the canon pictures of the Museum Library.

I see it as a redish or bluish hue at the left border of the building and the monument in front of the building and in the shadows.

I see it in every canon image - some a little and some enough to see without even zooming into the image:

http://www.steves-digicams.com/camer...r/IMG_0273.JPG

http://www.steves-digicams.com/camer...r/IMG_0426.JPG

http://www.steves-digicams.com/camer...r/IMG_5449.JPG

http://www.steves-digicams.com/camer...r/IMG_0505.JPG

not bad in these but still there:
http://www.steves-digicams.com/2009_...s/IMG_0298.JPG

http://www.steves-digicams.com/2008_...s/IMG_0008.JPG

Again, I have been a long time fan of Canon but I am worried about putting alot of money into a Canon dSLR if they all seem to have this same issue.

Am I missing something?

I do not see this problem with any of the Nikon's in this same section. Makes me start to lean toward buying a Nikon instead.

Any input would be appreciated.

Thanks!
Juggernaut
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Old Jun 5, 2011, 1:16 PM   #2
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CA is a property of a lens not of a body so don't let that concern you. Get a camera that meets your needs and that is comfortable in your hand, also look at lenses as they have a very major effect on your photography.
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Old Jun 5, 2011, 1:58 PM   #3
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I have checked my images and I cannot see any CA and that with a 18-55 kit and 55-250 and 50 1.8.
Hope that helps
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Old Jun 8, 2011, 4:17 PM   #4
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Quote:
Originally Posted by Mark1616 View Post
CA is a property of a lens not of a body so don't let that concern you. Get a camera that meets your needs and that is comfortable in your hand, also look at lenses as they have a very major effect on your photography.
Hi,

Well, as a beginner, I thought I would get a stock lens - but it would seem like I should not if I get the Canon.

Are the stock lenses usually a problem for Canon?

Thanks,
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Old Jun 8, 2011, 9:18 PM   #5
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Quote:
Originally Posted by Juggernaut View Post
Hi,

Well, as a beginner, I thought I would get a stock lens - but it would seem like I should not if I get the Canon.

Are the stock lenses usually a problem for Canon?

Thanks,
Juggernaut
The stock Canon lenses are great. I have a Rebel XS and see no CA in my photos with both the 18-55mm kit lens and the 55-250mm IS. With cheaper lenses you might get the CA but you probably won't with the Canon Lenses.
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Old Jun 8, 2011, 10:24 PM   #6
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The kit lens for the can is not bad, either the 1 lens or 2 lens kit

T1i with 18-55 with a crop to really look at the CA
then the 55-250 with a crop as well
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Old Jun 8, 2011, 10:28 PM   #7
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This was with the 60D and the kit lens for the 7d ef 28-135. It really comes down to the lens. the 18-135 that is package in a kit with the 60D does have more CA the other kit lens. So it is all about the lens with CA.

So I would follow mark's advice, find the dslr that fits your ergo the best, and not worry to much about the CA. As all kit lenses form sony, canon, nikon olympus and pentax has some CA, but they all control it quite well. It is the poorer lens, or improperly calibrated lenses that show allot of CA that becomes an issue.
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Last edited by shoturtle; Jun 8, 2011 at 10:32 PM.
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Old Jun 9, 2011, 11:16 PM   #8
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Quote:
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This was with the 60D and the kit lens for the 7d ef 28-135. It really comes down to the lens. the 18-135 that is package in a kit with the 60D does have more CA the other kit lens. So it is all about the lens with CA.

So I would follow mark's advice, find the dslr that fits your ergo the best, and not worry to much about the CA. As all kit lenses form sony, canon, nikon olympus and pentax has some CA, but they all control it quite well. It is the poorer lens, or improperly calibrated lenses that show allot of CA that becomes an issue.
Hi,

Would you agree that there is notable CA in the images I posted above?
Those are all with kit lenses.

How do I know how good the image quality is if I don't know if it is a lens issue or a camera issue when I see problems with the images?

Why is it that the Nikon images don't have CA but the Canon's do?

Thanks!
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Old Jun 9, 2011, 11:37 PM   #9
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nikon does have it, depending on the lens also.

The shots you link with the most CA were with the 18-135 that is very prone to CA, it is not a great lens, that is a major reason, I just got the body vs the kit for the 60D.

The kit 18-55 is on par the nikon 18-55. I shot the nikon 18-55 and the CA is about the same.
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Old Jun 9, 2011, 11:39 PM   #10
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PS, nikon DSLR has an option to correct for CA. And that is normally default on.
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