A foam ring designed to reduce reflections when used behind a dome port underwater. This ring slides around the outside of the lens before being attached to the camera. It is not adhesive.
Designed specifically for use with the Olympus FCON-T02 Fisheye Conversion Lens for Olympus TG-5, TG-6, and OM System TG-7 cameras.
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![[V6360530W000] OM System POL-058 O-Ring for PT-058, PT-059](/web/image/product.template/29780/image_256)