One of the most critical components of an optical system for use underwater is the device that interfaces between air and water or the port. Incorrect port choice, or choosing an incompatible lens and port combination can seriously affect image quality. Alex and Adam discuss the types of ports that are available, when to use them and how to choose the right port.

If you want to see more of these videos, please subscribe to the Wetpixel Live YouTube Channel. You will then be notified when we add additional episodes in the future. With over 160 episodes, Wetpixel Live is crammed full of hard-edged technical information and practical advice aimed at helping people create inspiring and memorable images. The first 150 episodes are also available to purchase and download.