The zinc anodes at the bottom of Nauticam DSLR, Mirrorless, and Compact housings corrode so as to keep the rest of the housing from corroding. Replacements are necessary.
Which to use:
90073 Sacrificial anodes only for NA-GX1, S110, RX100, RX100V, RX100II, RX100IIV housings (1 set of two anodes)
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