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Extension rings & Port adapters

An extension ring will extend your port and make it longer. We recommend you to follow the manufacturers recommended combinations of ports and extension rings for best possible image quality.

A port adapter will change your housings port opening to allow you to use a wider port or extension ring. We recommend you to follow the manufacturers recommended combinations of ports and extension rings for best possible image quality.

We can help you find the best port options for your lens. Let us know: 1) Underwater housing brand? 2) Which camera? 3) Which lens?
You can identify which extension ring and port fit your lens through our dedicated port chart page

Why Exposure Underwater? 

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