Nauticam Mid-Range Focus Optimiser 3 (MFO-3)

Brand: Nauticam
SKU: 81503

Available Mid-August 2025 in Limited Quantity

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Wet Lens Nauticam

Please check with us on availability if this item is urgently required.

Dimensions	OD 84mm x H 114.2mm
Weight in air	602g
Buoyancy in water	Negative 120g
Max Magnification (*1)	0.9x
Lens FOV/Converted FOV	23° / 38°
Working distance (*1)	0-1500mm
Body construction	Hard-anodized aluminum alloy
Lens construction	4 elements in 3 groups
Lens coatings	Anti-reflection Coating
Mount thread diameter	M67
Depth rating	100m

*1 Tested with Nikon Nikkor Z MC 105mm f/2.8 VR S Macro Lens

Specification	MFO-3 (81503)	MFO-1 (81501)	SMC-3 (81203)
Dimensions (OD x H)	Ø 84 x 114.2 mm	Ø 70 x 26 mm	Ø 70 x 32 mm
Weight in Air	602 g	218 g	307 g
Buoyancy in Water	Negative 120 g	Negative 150 g	Negative 215 g
Lens FOV / Converted FOV*1	23° / 38°	–	–
Max. Magnification*1	0.9×	1.2×	2.3×
Working Distance*1	0–1500 mm	108–1005 mm	46–98 mm
Lens Construction	4 elements in 3 groups	3 elements in 2 groups	3 elements in 2 groups
Lens Coatings	Anti-reflection	Anti-reflection	Anti-reflection
Mount Thread	M67	M67	M67
Depth Rating	100 m	100 m	100 m

Lens	Sensor format	Lens FOV.	Max. Magnification	Working distance	Converted FOV.
Canon RF 100mm f/2.8 L Macro IS USM (with Modified Aperture)	FF	24°	0.9X	0-1490mm	40º
Canon EF 100mm f/2.8L Macro IS USM	FF	24°	0.9X	0-1490mm	40º
Nikon NIKKOR Z MC 105mm f/2.8 VR S Macro	FF	23°	0.9X	0-1500mm	38°
Nikon AF-S VR Micro-NIKKOR 105mm f/2.8G IF-ED	FF	23°	0.8X	5-1490mm	38°
Nikon AF-S Micro NIKKOR 60mm f/2.8G ED	DX	26.5°	0.5X	0-1500mm	45º
Sony FE 90mm f/2.8 Macro G OSS	FF	27°	0.8X	0-1500mm	45º
Fujifilm GF 120mm f/4 Macro R LM OIS WR	Medium Format	25.7°	0.9X	15-1500mm	43º
Olympus M. Zuiko Digital ED 60mm f2.8 Macro	M43	20°	0.5X	0-1500mm	33º
OM System M.Zuiko Digital ED 90mm f/3.5 Macro IS PRO(Normal macro mode)	M43	14°	0.7X	0-1480mm	23º
Canon EF-S 60mm f2.8 Macro USM	APS-C	24.5°
Panasonic Lumix S 100mm f2.8 Macro	FF	24°

Included in the box