Nauticam N120 Extension Ring 70 with Focus Knob for Canon EF 11-24mm f/4L USM

[Description]

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

[Specifications]

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

[Compatiable lens]

• Canon EF 11-24mm f/4L USM
• Canon EF 16-35mm f/2.8L III USM
• Canon EF 16-35mm f/2.8L II USM (require exchanging the internal cog)

[Spare O-ring]

• #90140 (I.D.=108mm, C.S.=3.5mm)