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General Photography
Macro
Internal focus or not?
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<blockquote data-quote="Fred Kingston_RIP" data-source="post: 562004" data-attributes="member: 10742"><p>The only difference between the two is if you use a polarizer on the EF lens... Once you adjust the filter, you don't want the lens to rotate... With an IF lens, you can adjust the filter , and then change the focus point (refocus the lens) without the filter having changed without you being aware of it...</p></blockquote><p></p>
[QUOTE="Fred Kingston_RIP, post: 562004, member: 10742"] The only difference between the two is if you use a polarizer on the EF lens... Once you adjust the filter, you don't want the lens to rotate... With an IF lens, you can adjust the filter , and then change the focus point (refocus the lens) without the filter having changed without you being aware of it... [/QUOTE]
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General Photography
Macro
Internal focus or not?
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