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Kodak EasyShare DX-7590
Review by Elizabeth Giargiari - February 2005
Image Quality Two (Chromatic Aberration)
Chromatic aberration shows up as color fringing (purple, red, or cyan) around the edges of high contrast subjects and is most severe if the subject is backlit, meaning that the light source is behind the subject. Chromatic aberrations are caused by the lens refracting (bending) light differently due to the wavelength of the light. For example, shorter wavelengths of light (blue) are refracted more than longer wavelengths (red), causing each wavelength of light to bend differently as it passes through the lens, thus not hitting the exact same focal plane, which results in the color fringing.

The Kodak EasyShare DX7590, like many consumer digital cameras, suffers from some red and cyan color fringing, most noticeable along high contrast edges. Color fringing is very hard to notice in a 4 x 6" photograph, however the effect is more noticeable as print size increases.




In the photograph above you can see in the full-size crop that the Kodak DX7590 exhibits some red and cyan fringing along the left edge of the home. The amount of chromatic abberation is in line with other long-zoom digital cameras, and while not severe, will show up in your photographs, especially when enlarged. There are software programs out that will automatically remove chromatic abberation from photographs, and if you are familiar with how to use the "Clone" tool of your software, you can easily edit the color fringing yourself. Since lighting, contrast, and subject affect chromatic abberation, it will be less noticable in some photographs and more in others.

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Introduction First Impression Specifications Image Quality
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Image Quality 2 Feature Performance Conclusion DX7590 Photo Gallery
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