This focus knob attaches to the N120 Extension Ring 30 II (22130) and Extension Ring 40 II (22140), giving direct external control of the lens focus ring through the extension. It lets you adjust focus precisely from outside the housing.
Nauticam
Focus Knob for 22170 This focus knob attaches to the N120 Extension Ring 70 II (22170), giving direct external control of the lens focus ring through the extension. It lets you adjust focus precisely...
Nauticam
Focus Knob for 22135 / 22150 This focus knob attaches to the N120 Extension Ring 35 II (22135) and Extension Ring 50 II (22150), giving direct external control of the lens focus ring through the...
Nauticam
N120 Extension Ring 30 with Lock The Nauticam Extension Ring 30 with Lock is part of the N120 Port System and can be used to add 30mm effective length to an N120 Port setup. At a Glance Depth...
Nauticam
Nauticam - 6'' Wide Angle Port With Focus Knob
Nauticam
N120 Extension Ring 50 with Focus Knob This 50mm N120 Extension Ring features an integrated Focus Knob. Use of the focus gear requires a supported lens and the appropriate foc
