Nauticam port extensions to adapt various lenses to fit one port. These lock in place with port and housing. Comes in N120 (DSLR), N100 (mirrorless) and N85 (micro 4/3rds) mount sizes. Includes cover, extra oring and silicone grease.
The latest offering from Kraken Sports is the Kraken WeeFine Ring Light for macro illumination. This innovative light attaches to any threaded port. It features a constant-on 1000 lumen light and is small, lightweight and self-contained.