Athena Extension Ring 60 with Focus Knob (Sea&Sea DX/NX Mount) @m46thread Full length: 97mm (3

Full length: 97mm (3

The package includes two stackable rings which reduce the angle of light for "Macro" and "Super Macro" images

No need to worry to attach or remove the filter

increments

Athena Extension Ring 60 with Focus Knob (Sea&Sea DX/NX Mount) @m46thread Full length: 97mm (3Athena Extension Ring 60 with Focus Knob, provides manual focus for compatible zoom lenses. Compatible Housings: MDX series housings. Compatible Lenses: Canon EF 16 35mm F2. 8L ll USM (Optional Athena FG 16 35c A focus gear required) Canon EF17 40mm F4L USM (Optional Athena FG 17 40c A focus gear required) Nikon AF S Zoom Nikkor 14 24mm f 2. 8G ED (Optional Athena FG 14 24n A focus gear required) * Compatible focus gear required for manual focusing