Athena Extension Ring 60 with Focus Knob (Sea&Sea DX/NX Mount) @m46thread No need to worry to

No need to worry to attach or remove the filter

The tray is machined specially to prevent rotation when attached to an Action housing

07 or Aluminum Top Handle # 4080

The housing

Our custom rechargeable cells power high frame rate firing from the first shot to the last

Athena Extension Ring 60 with Focus Knob (Sea&Sea DX/NX Mount) @m46thread No need to worry toAthena 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