Nauticam Mid-range Focus Optimizer 1

Nauticams newest Water Contact Optic: the Mid-Range Focus Optimizer (MFO-1). Main function of this lens is to cancel the focus distance limitation of macro lenses underwater and provide ample focus distance for different sizes of subjects which were previously limited by using SMC-1 or CMC lenses. The MFO-1 also greatly improves optical performance by minimizing aberration. 

Specifications:

Dimensions:    Ø 70mm x 26mm
Weight in air:    218g
Buoyancy in water:    Negative 150g
Magnification (*):    1.2x
Working distance (*):    12.5cm - 114cm
Body construction:    Hard-anodized aluminum alloy
Lens construction:    3 elements in 2 groups
Lens coatings:   Anti-reflection Coating
Mont thread diameter:    M67
Depth rating:    100m

* Tested with Nikon AF-S VR Micro-NIKKOR 105mm f/2.8G IF-ED

Included in the box

Front and rear rubber caps
Neoprene bag
M67 Spacer ring for SMC/CMC
Cleaning cloth

Compatible Lenses (More lenses to be tested)

Nikon AF-S VR Micro-NIKKOR105mm f/2.8G IF-ED
Max. Magnification: 1.2x, Working Range: 12.5cm-114cm
Nikon AF-S Micro NIKKOR 60mm f/2.8G ED
Max. Magnification: 1.1x, Working Range: 1.2cm-112cm
Olympus M. Zuiko Digital ED 60mm f2.8 Macro
Max. Magnification: 1.1x, Working Range: 5.8cm-112cm