Purpilication, eh? Whatever, still looks mighty fine to me.
Chuck Norcutt
Winsor Crosby wrote:
> I think there is a common confusion about chromatic aberration.
>
> There is some purple fringing at the edges of the bright light at the
> end of the building that is a sensor artifact, not a lens artifact.
> Sensors, like film, have trouble handling black and white edges
> especially when the light is bright. The difference from film is that
> when the light spills over the edge it takes on a purple bloom with a
> digital sensor. The edge looks eaten away on film and even more, I
> think, with the sensor. Much of it can be corrected though.
>
> Chromatic aberration is caused by the inability of the lens to bring
> all the colors in white light to focus at the same point. Usually you
> would see it also in bright areas, but usually characterized by a
> colored edge on one side and a different color on the opposite edge.
> That does not seem to be present in this image.
>
>
>
> Winsor
> Long Beach, California, USA
>
>
>
>
> On Jan 9, 2006, at 5:30 AM, Michael Wong wrote:
>
>
>>Dear all,
>>I have gotten a Tamron SP 17mm F3.5 & found its' chromatic
>>aberration is
>>serious.
>>http://palmboy.palmcyber.net/gallery/albums/album125/IMG877.jpg
>>
>>Is there any comment for this lens?
>
>
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