Nauticam N120 Extension Ring 70 with Focus Knob

[Description]

An N120 extension ring with knob for zoom lens focus control (require optional focus gear).

This extension ring is not compatible with focus gear #19551 C1124-F and #19555 C1635III-F

[Specifications]

• Body construction: Anodized aluminium alloy
• Effective length: 70mm
• Port opening diameter: 109mm

[Spare O-ring]

• #90140 (I.D.=108mm, C.S.=3.5mm)