Cheesycam filter holder set

I have been curious about his filter holder kit that is in process of being fabricated.

http://cheesycam.com/examples-with-cpl-filter-on-rx100/

One way it differs from the available Jens Faerber kit and the not yet available Lensmate kit is that the filters themselves attach to a receiver base unit via magnets, as opposed to being screwed in.

I am wondering if magnets can interact badly with the electronics within the camera (and if I am unclear on the concept, please go easy!).
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Liz