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Nauticam MFO-3 Mid-range Focus Optimizer 3
$550
Introducing our newest Water Contact Optic, the Mid-range focus optimizer or MFO-1. The MFO-1 is designed to elevate your macro shooting experience by eliminating any noticeable focus hunting while ensuring crisper, sharper and more vibrant images.
Description
Nauticam Mid-range Focus Optimizer 3 (MFO-3)
Nauticam once again demonstrates its commitment to underwater photographers with the introduction of the Mid-range Focus Optimizer 3 (MFO-3). As full-frame mirrorless cameras become the go-to choice for serious underwater imaging, a key limitation has emerged: the lack of close-focusing, wide-angle macro lens options—especially for blackwater photography. The MFO-3 is designed to solve that problem without requiring new camera lenses or ports.
Optimized for use with longer focal length full-frame macro lenses (such as 90mm, 100mm, and 105mm), the MFO-3 transforms these lenses into an approximate 60mm equivalent. It also delivers significantly enhanced “focus-to-the-glass” performance while still offering ample working distance when needed. Whether you’re capturing thumbnail-sized nudibranchs or grapefruit-sized frogfish, this water-contact optic delivers outstanding image quality—without the need to swap out your camera lens or port.
While it’s an outstanding tool for blackwater, the MFO-3 is just as capable in a wide range of macro environments. And despite its larger physical size, it actually boasts a lower in-water weight than the SMC-3, making it easier to handle and balance in the water.
| Mid-range Focus Optimizer 1 (MFO-1) Specifications | |
|---|---|
| Dimensions | OD 84mm x H 114.2mm |
| Weight in air | 602g |
| Buoyancy in water | Negative 120g |
| Magnification (*1) | 0.9x |
| 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 |
| Mont thread diameter | M67 |
| Depth rating | 100m |
*1 Tested with Nikon AF-S VR Micro-NIKKOR 105mm f/2.8G IF-ED |
|
Click for Compatible Lens Chart
| Comparison with MFO-1 and SMC-3 | |||
|---|---|---|---|
| Lens | MFO-3 | MFO-1 | SMC-3 |
| Dimensions | Ø 84mm x H 114.2mm | Ø 70 x 26mm | Ø 70 x 32mm |
| Weight in air | 602g | 218g | 307g |
| Buoyancy in water | Negative 120g | Negative 150g | Negative 215g |
| FOV/Converted FOV | 23° / 38° | ||
| Magnification (*1) | 0.9x | 1.2x | 2.3x |
| Working distance (*1) | 0-1500mm | 108-1005mm | 46-98mm |
| Lens construction | 4 elements in 3 groups | 3 elements in 2 groups | 3 elements in 2 groups |
| Lens coatings | Anti-reflection Coating | Anti-reflection Coating | Anti-reflection Coating |
| Mont thread diameter | M67 | M67 | M67 |
| Depth rating | 100m | 100m | 100m |
*1 Tested with Nikon AF-S VR Micro-NIKKOR 105mm f/2.8G IF-ED |
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Additional information
| Weight | 0.8 kg |
|---|
