21270 N120 Extension Ring 70 with Focus Knob

N120 Extension Ring 35 with Focus Knob

N120 Extension Ring 30 with focus knob

N120 Extension Ring 40 with Focus Knob

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

N120 Extension Ring 70 with focus knob for Canon EF 11-24mm f/4L USM The Nauticam Extension Ring 70 with Focus Knob is part of the N120 Port System and can be used to add 70mm effective length to an...