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Photography Q&A
calculating "darkness factor" of IR filter
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<blockquote data-quote="hark" data-source="post: 763349" data-attributes="member: 13196"><p>Do you mean the green dot that indicates if something is in focus? I believe with the 10-stop ND filter I have, I had to focus without the filter, switch to manual focus, then screw on the filter before firing the shutter. Otherwise, it simulates being in such a low light condition that the camera isn't able to achieve focus. If it is only a 3-stop filter, then it *should* still be able to focus with the filter in place - but again it will be dependent on how much available light is there.</p></blockquote><p></p>
[QUOTE="hark, post: 763349, member: 13196"] Do you mean the green dot that indicates if something is in focus? I believe with the 10-stop ND filter I have, I had to focus without the filter, switch to manual focus, then screw on the filter before firing the shutter. Otherwise, it simulates being in such a low light condition that the camera isn't able to achieve focus. If it is only a 3-stop filter, then it *should* still be able to focus with the filter in place - but again it will be dependent on how much available light is there. [/QUOTE]
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Photography Q&A
calculating "darkness factor" of IR filter
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