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Photography Q&A
Autofocus mechanism
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<blockquote data-quote="J-see" data-source="post: 369965" data-attributes="member: 31330"><p>Those yellow and purple distortions are CA indeed. When I was first using the 70-300mm a good part of the macros I did with it showed those distortions. I didn't understand what caused them until I took off the UV filter. The CA disappeared too. Yellow and purple is CA for sure. In my case the UV filter caused them but only when there was plenty of contrast.</p></blockquote><p></p>
[QUOTE="J-see, post: 369965, member: 31330"] Those yellow and purple distortions are CA indeed. When I was first using the 70-300mm a good part of the macros I did with it showed those distortions. I didn't understand what caused them until I took off the UV filter. The CA disappeared too. Yellow and purple is CA for sure. In my case the UV filter caused them but only when there was plenty of contrast. [/QUOTE]
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Autofocus mechanism
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