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May 20, 2012, 01:13:19 AM


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Author Topic: 24-105mm f/4L Chromatic Aberration  (Read 319 times)

Offline ereuter

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Re: 24-105mm f/4L Chromatic Aberration
« Reply #15 on: February 13, 2012, 05:49:15 PM »
Quote from: Craig on February 13, 2012, 12:52:08 PM
Ereuter, could you suggest a simple photo I could take to try to replicate your problem. Landscape, trees, buildings?

Yes - it seems to be worst at 24mm and f/4 at the edge of the frame - like in my fist detail above.  If you could shoot something white with crisp edges at the edge in mid-day sun, that would be a good comparison. 

Thanks for doing that.
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Offline Craig

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Re: 24-105mm f/4L Chromatic Aberration
« Reply #16 on: February 15, 2012, 07:40:30 AM »
Can you see any CA here. I couldn't get a shot with blue sky. It was actually raining a little. Both shots have their 100% crop.
Shot with the 24-105mm f/4L, 24mm focal length, f/4.0.
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Offline ereuter

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Re: 24-105mm f/4L Chromatic Aberration
« Reply #17 on: February 15, 2012, 08:15:45 AM »
Not as much I seem to be getting.  Just a little under the word "pharmacy" on that last crop.  Thanks for this.  I am thinking I'll send this thing back. 
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Offline AndyCivil

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Re: 24-105mm f/4L Chromatic Aberration
« Reply #18 on: February 15, 2012, 11:16:55 AM »
I did a test; where I see the most CA is when taking trees with a bright sky behind. The test was done on the same tree, same conditions, ISO100, 1/400s, ƒ/5.6 200mm. The first picture, and crop, uses the 'kit' telephoto lens. The second uses an allegedly quality lens costing around $1,100. Like the original poster, I'm not terribly impressed with the lens I borrowed. What do you guys think?
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