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81302 Compact Macro Convertor (CMC-2) 2.8x Magnification

$ AUD495.00
(Inc. GST)
$ AUD450.00
(Ex. GST)
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1.00 KGS



The Compact Macro Converter 2 (CMC-2) is a new in-water optic designed to stand alongside the previous CMC-1, offering a less powerful lens choice for "larger" macro subjects that is also noticeably easier to use.


The CMC-1 became the benchmark other lenses are measured against with extremely high magnification and overall sharpness.

The CMC-2 is a follow-up designed to give photographers using compact systems more magnification choices without sacrificing quality.

New underwater photographers, or new system owners, will appreciate an easier-to-use lens with more accurate autofocus performance than stronger lenses can offer.

More experienced users will find that CMC-2 is an ideal companion to CMC-1, allowing the perfect lens to be selected based on the subject size.


During pre-production testing we noticed a stunning increase in overall image sharpness when comparing shots taken with CMC-2 to those behind a flat port with no accessory lens whatsoever.

It became clear that with both compact cameras at full telephoto and mirrorless interchangeable lens systems the conversion lens markedly improved overall sharpness.

This is counterintuitive, as conventional wisdom implies that any conversion lens reduces image quality.

In this case, the flat port degrades overall sharpness, and the optical correction offered by the CMC-2 restores it.

Simply put – an image taken underwater with CMC-2 is sharper than the same image taken with no accessory lens mounted. These are true water-contact corrective optics!


Prior to the development of the Nauticam accessory macro conversion lenses, achieving "super macro" underwater meant using tools that were designed for in-air use.

These tools simply do not take into account the physics of shooting in water. Thanks to Edward Lai, Managing Director of Nauticam, the CMC-2 takes a radically different approach: hundreds of engineering hours utilizing computer software to model an accessory lens that complements an entire system – camera, lens, port, air, and water – as a whole.

This accounts for the critical air-water interfaces in a conversion lens design to achieve the best image quality possible.

The improvements are stunning, measurable and a new standard in underwater macro imaging.


The CMC-2, like all Nauticam Macro Converters, is constructed from lenses precision crafted of specially formulated low dispersion optical grade glass, ground to the most demanding standards. This means greater sharpness and contrast on every shot and extraordinary resolution rivaling a macro lens used in air. Broadband anti-reflective coatings effectively reduce common optical issues such as chromatic aberrations, coma, spherical aberration, and field deformation associated with underwater macro photography using traditional magnifying lenses. This means superior light transmission, accurate color and no distortion and vignetting in the most demanding situations.

These exceptional optics are assembled in a rugged hard anodized aluminum housing, and nitrogen purged during assembly to eliminate fogging.


The CMC-2 is the less powerful of the two Nauticam Macro Converters designed for compact cameras, but magnification when compared to the capabilities of these cameras with no accessory lens is still very impressive.

As an example, the popular Sony RX100V can capture an image area 160mm (6.3 in.) wide at its full telephoto zoom position at its minimum focus distance.

With the addition of CMC-2, that image area is reduced to 55mm (2.2 in) wide. CMC-1 brings the minimum focus distance even closer, allowing a captured frame 36mm (1.4 in) wide.


By utilizing a specially developed algorithm in the lens design process, the CMC-2 renders superior image quality over the full focusing range of the camera lens.

This, combined with the high brightness and contrast of the image, allows the autofocus system of the camera to work well – often better than less powerful close focus lenses.

Just as important are the out-of-focus (Bokeh) portions of the image that exhibit the same creamy smooth quality that photographers appreciate when shooting macro in air – all without color fringing common to traditional magnifying lenses.


Due to the overall superior optical performance and precision focus of the CMC-2 it is possible to shoot larger apertures with excellent image quality.

This avoids reaching the diffraction limit of high resolution sensors, and allows selective focus effects with narrow depth of field in super macro images.


The CMC-2 ships with the common 67mm threaded lens mount. The lens has a protruding rear element, designed to place the accessory optic as close to the camera lens port as is possible, providing the best overall image quality when used with flip lens adapters. A flush mount adapter ring is used when attaching CMC-2 directly to an underwater housing, and is included with the lens. Flip and Bayonet Lens Mounts are available as accessories.


The same Nauticam bayonet system designed with the Wet Wide Lens (WWL-1) is also compatible with CMC-2. (P/N 81302).

The bayonet mounting system is the attachment method of choice for shooting both macro and wide angle on the same dive.

Nothing beats the convenience of flip adaptors, allowing the accessory lenses to be flipped in place when needed, and conveniently swung out of the way for normal lens shooting.

A flip adaptor is the best mounting system for macro only dives, or camera systems that don't support macro and wide angle lenses on the same dive (such as Canon G7X Mark II)

The new M67 Double Flip Holder for M67 Macro Ports, P/N 25108 allows both CMC-1 and CMC-2 to be used on the same dive for multiple macro framing options.


The industry standard macro lens magnification measure is a dioptric power, but we don't feel that is actually that useful.

Dioptric numbers can be misleading.

They are often multiple lenses stacked together, and the resulting stack doesn't always yield the power of its individual components.

In an attempt to make the power and utility of these lenses less confusing, we offer a simplified magnification factor. CMC-2 offers 2.8x magnification (as an average) with compact cameras currently supported by Nauticam housings.

For comparison, CMC-1 results in 4.5x average magnification.


Recommended Compact Cameras


Native Lens

with CMC

Camera Min Focus Dist. Image Width (W) Min Focus Dist. (T) Image Width (T) Magnification Working Distance Increase
Sony RX100M2 40 mm 75 mm 65 mm 27 mm 2.8 X 1.6 X
Sony RX100M3 40 mm 80 mm 56 mm 35 mm 2.3 X 1.4 X
Canon S120 16 mm 48 mm 52 mm 20 mm 2.5 X 3.3 X
Canon G16 10 mm 30 mm 59 mm 19 mm 1.6 X 5.9 X
Canon G7X 23 mm 68 mm 56 mm 23 mm 3.0 X 2.4 X
Panasonic LX7 16 mm 52 mm 52 mm 27 mm 1.9 X 3.3 X
Panasonic LX100 16 mm 74 mm 74 mm 32 mm 2.3 X 4.6 X

Recommended Interchangeable Lens Systems



with CMC

Micro Four Thirds

Format Width Image Width Working Distance Image Width Reproduction Ratio Working Distance
Olympus M.Zuiko Digital ED 12-50mm F3.5-6.3 EZ power zoom (43mm Macro Mode) 17 mm 34 mm 73 mm 20 mm 0.9 : 1 14 mm
Olympus M.Zuiko Digital ED 12-50mm F3.5-6.3 EZ power zoom (50mm) 17 mm 83 mm 286 mm 21 mm 0.8 : 1 48 mm
Olympus M.Zuiko Digital ED 14-42mm f/3.5-5.6 EZ Lens 17 mm 62 mm 197 mm 21 mm 0.8 : 1 41 mm
Olympus M.Zuiko Digital ED 14-42mm f/3.5-5.6 Ver. II R (42mm) 17 mm 70 mm 211 mm 22 mm 0.8 : 1 41 mm
Olympus M.Zuiko Digital ED 60mm f/2.8 Macro Lens 17 mm 17 mm 98 mm 9 mm 2.0 : 1 22 mm
Panasonic Leica DG Macro-Elmarit 45mm f/2.8 ASPH. MEGA O.I.S. Lens 17 mm 17 mm 71 mm 11 mm 1.6 : 1 17 mm
Panasonic Lumix G Micro 4/3 LEICA DG MACRO-ELMARIT 45mm / F2.8 ASPH. / MEGA O.I.S. Lens 17 mm 17 mm 71 mm 11 mm 1.6 : 1 17 mm
Panasonic Lumix G X Vario PZ 14-42mm f/3.5-5.6 (42mm) 17 mm 98 mm 307 mm 24 mm 0.7 : 1 49 mm

Sony E Mount

Sony E 18-55mm f/3.5-5.6 OSS E-Mount Zoom Lens 24 mm 75 mm 175 mm 27 mm 0.9 : 1 37 mm
Sony E PZ 16-50mm f/3.5-5.6 OSS E-mount Power Zoom Lens 24 mm 92 mm 256 mm 26 mm 0.9 : 1 46 mm
Sony FE 28-70mm f/3.5-5.6 OSS Full-frame E-mount Zoom Lens 36 mm >150 mm >350 mm 30 mm 1.2 : 1 54 mm
Zeiss Touit 50mm Macro 24 mm 23 mm 54 mm 16 mm 1.5 : 1 10 mm

Nikon F Mount

Nikon Micro-Nikkor AF-S 60mm f/2.8G ED 36 mm 36 mm 47 mm 24 mm 1.5 : 1 10 mm


Recommended Accessories



25101 Flip Lens Holder for M67 Macro Ports
25103 Flip Lens Holder for M77 Macro Ports
25104 Flip Lens Holder for Nauticam Flat Port 72
25105 Flip Lens Holder for Nauticam 4" Wide Angle Port
25107 Flip Lens Holder for NA-LX100 Standard Port
25511 67mm Lens Holder: For mounting a 67mm threaded accessory lens on a Nauticam strobe arm
25513 67mm Double Lens Holder: For mounting two 67mm threaded accessory lenses on a Nauticam strobe arm


Details and Specifications

•Depth Rating:  60m
•Weight: .26 kg
•Dimensions: Diameter 70mm x Length 34mm