Nimar Focus Gear for Canon EF 100 mm F/2.8 L Macro IS USM in DSLR Housings

With this Nimar Focus Gear attached, you can manually focus your Canon EF 100 mm f/2.8 L Macro IS USM lens inside an underwater DSLR camera housing. The gear is compatible with select Nimar NIM-120 lens ports. For full compatibility info, see the Port Chart.