Ikelite Port System Zoom Gear DL Retainer Macro Ports and Adapters Push buttons have been redesigned

Push buttons have been redesigned to reduce weight and salt build-up

There are significant advantages to upgrading your lens ports to the DL system

Ikelite's housings are built by hand and individually tested for fit and function

the second generation of Ikelite's 1-inch ball arm system provides improved ergonomics and versatility in a lighter

All Aquatica housings are constructed from the finest material available in the industry

Ikelite Port System Zoom Gear DL Retainer Macro Ports and Adapters Push buttons have been redesignedIkelite 75900 DL Port System Zoom Gear Retainer Product Details Threaded retainer required to secure the zoom sleeve in the DL port system. This retainer is included with housings for DSLR and mirrorless featuring the DL port system. Specifications Acetyl 18g (. 64 oz) 4" diameter x 0. 7" (18mm) In the Box Zoom gear retainer