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<blockquote data-quote="Stoshowicz" data-source="post: 369992" data-attributes="member: 31397">I gotta say as well that combining the things you guys are saying with google searches to fill it out is rather interesting.Purple fringe is but one type of CA , If I read it correctly , purple fringe happens because of differential activation of the various components of the bayer arrays. CA also can be caused by UV, polarized specular reflection ,and infrared light , some folks seem to suggest that polarized UV filters could be of help , and others seem to say that its detrimental. -I dont get that- And one can also get some color bleed over due to the misaligned red blue and green focus distances. SO it appears that this CA thing is actually a lot more complicated than I first thought. I thought it was just a no brainer thing but its not as simple as just slapping on a filter or angling for a particular direction of light. One thing said that one should correct the issue in camera raw by doing something with the color channels before saving as a tiff or Jpeg, because once they were converted to those formats the colors were now not combinations of the bayer array components but numerical depictions of the summed up &quot;color&quot; rendering.&nbsp; OH NO Ive been doing it wrong a long long time! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" /> This is going to take some serious digging.</blockquote>

[QUOTE="Stoshowicz, post: 369992, member: 31397"] I gotta say as well that combining the things you guys are saying with google searches to fill it out is rather interesting. Purple fringe is but one type of CA , If I read it correctly , purple fringe happens because of differential activation of the various components of the bayer arrays. CA also can be caused by UV, polarized specular reflection ,and infrared light , some folks seem to suggest that polarized UV filters could be of help , and others seem to say that its detrimental. -I dont get that- And one can also get some color bleed over due to the misaligned red blue and green focus distances. SO it appears that this CA thing is actually a lot more complicated than I first thought. I thought it was just a no brainer thing but its not as simple as just slapping on a filter or angling for a particular direction of light. One thing said that one should correct the issue in camera raw by doing something with the color channels before saving as a tiff or Jpeg, because once they were converted to those formats the colors were now not combinations of the bayer array components but numerical depictions of the summed up "color" rendering. OH NO Ive been doing it wrong a long long time! :) This is going to take some serious digging. [/QUOTE]

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