Ikelite W-20 46mm .56x Wide-Angle Lens
The Ikelite W-20 is a 0.56x conversion wide angle lens. It is referred to as a "wet lens" because it is independently sealed and can be removed and replaced while underwater.
Available with 67mm thread mounts.
The 46mm threaded lens attaches directly to the front of most ULTRAcompact housing ports.