Aquatica Port Extension Ring (2.5") Tiffen 49DIGEK3 and features smooth knob action

and features smooth knob action for easy and secure positioning

and other equipment Can be used with slider rails ALX SR4

For Analog & Digital Cables

GreenPower UPS bypass technology Dimensions (WxHxD) 17

This unit includes (2) keys

Aquatica Port Extension Ring (2.5") Tiffen 49DIGEK3 and features smooth knob actionEnables Use of Longer Lens Teleconverter Depth Rating: 295' Increase the length of your Aquatica underwater housing's lens port via this 2. 5" Port Extension Ring , in order to allow for the use of longer lenses or teleconverters. The ring is also designed to enable positioning of the front element of your lens as close as possible to the interior of the port, in order to minimize distortion for better image quality. See the Dimensions Chart to learn