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Some CA visible on the DA 18-135 mm ED WR @ 18 mm Focal Length
Lens: DA 18-135 mm f/3.5-5.6 Camera: Pentax K3 Photo Location: Quebec, CANADA ISO: 100 Shutter Speed: 1/13s Aperture: F16 
Posted By: RICHARD L., 05-25-2021, 02:00 AM

I magnified the upper righthand corner of the image 4X to show some "color fringing" visible around the tree branches shot against a whitish overcast sky. A little weakness that should not impact normal day-to-day photography but a weakness that it is better to know to help us avoid these situations. The picture remains quite sharp and contrasty overall despite this little glitch.




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05-25-2021, 07:58 AM   #2
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I'd think one click in Lightroom would eliminate this. Not bad performance at all, especially at the price point.
05-25-2021, 11:57 AM   #3
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Up to now, this lens has produced remarquably good images, nice uniform sharpness, beautiful color rendering, deep contrast and absence of veiling flare. CA seems more prevalent in the wide-angle range. Now I know what to "avoid" ... lol !

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