Conversion lenses

What “wet lenses” mean in underwater photography

These used underwater lenses are designed to get wet and operate underwater on the front of a housing. Many can be fitted or removed during a dive, depending on the mount style.

Mounting can be via screw thread or a bayonet-style fitting, and some setups use adapters. Compatibility depends on the housing port and the lens interface shown in the listing.

Condition notes, single units, and warranty

Each second-hand item has its own description covering optical condition and cosmetic marks, such as scratches or coating wear. Photos and notes indicate what is included and how the lens looks.

Availability changes because there is typically one unit per used lens or dome. Once sold, the same item is no longer available.

Choosing a used conversion lens or dome port

Wide-angle wet lenses and dome optics are used to increase field of view, while close-up wet lenses support macro work at shorter focus distances. The best match depends on your camera, port, and shooting distance.

Check the mount type, front diameter, and any required adapter before use.

Changing stock of used wet lenses

The range of used conversion lenses and domes changes frequently. As these are second-hand items, there is typically only one unit available per listing.

This category may occasionally be empty when no used wet lenses are in stock. The page remains active because new pre-owned lenses and dome options are added whenever available.

If you are looking for a specific used underwater lens for your housing setup, it is recommended to check this category again at a later time.

Looking for new conversion lenses?

If you cannot find a suitable used wet lens in this category, you can view the current range of new models in our conversion lenses category.

The new selection includes wide-angle, macro, and dome options compatible with various underwater housing systems and port configurations.