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What causes the pattern seen on the image (it is a still from a video)? This doesn't seem to be a Moiré. It seems to be largely related to the camera or the filter (the pattern is fixed and aligned with the camera). The image was taken through an optical bandpass filter.

Image

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    Can you provide some information about the image? I have no idea what it shows, at what scale etc. – this.myself Apr 18 '18 at 8:55
  • Sorry, I don't know much about photography and I don't have much information about the image either. I know it is digital, uses an Nm filter and shows shows 2 regular white clouds in a blue sky. – JPR Apr 19 '18 at 10:19
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Nm filter? Do you mean a [some number of] nanometer bandpass filter? If so, that's probably what is causing the pattern.

https://en.wikipedia.org/wiki/Metal-mesh_optical_filter

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  • Yes, I did mean a nanometer bandpass filter. I didn't have much information to go on, but your answer was still helpful! Thank you. – JPR May 16 '18 at 11:12

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