complete and durable waterproof housing for Nikon D750 DSLR cameras. Suitable for diving, snorkeling, surfing, swimming pool and any application in or around water. This popular model has been redesigned from the ground up to include all of our latest improvements. Lens Ports The biggest feature is our long-awaited new Dry Lock (DL) port system. This exciting new system is even more robust and even easier to assemble than our time-tested Four Lock (FL) system. The new ports are lighter and more adaptable and can accommodate extremely large diameter lenses with ease. If you are considering shooting pro-grade lenses like the Nikon 14-24mm or Sigma 10-20mm HSM, then the DL system is essential. Most popular zoom lenses and select lens focus rings can be activated using a simple but effective gear system that puts adjustment at your fingertips. A large, soft-touch lobed knob on the side of the housing makes tight adjustments a breeze. The zoom and focus gears differ depending on the lens you are using. They are all lightweight and affordable. Using the Legacy FL (Four Lock) Lens Ports Due to differences in mounting diameter and zoom engagement, the DL and FL system ports cannot be used interchangeably. The DL port bracket can be removed and replaced with older style port locks for the FL port system (set of 4) #5509.04 for legacy users with standard or modular ports from our Four Lock system. This modification will prevent