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NAUTICAM CMC II
COMPACT MACRO CONVERTOR 2 (CMC-2, 2.8X MAGNIFICATION)
Nauticam is pleased to announce the immediate availability of a new macro imaging tool for compact and mirrorless interchangeable lens camera enthusiasts, the CMC-2. CMC-2 is a new macro lens designed to stand alongside the previous CMC-1, offering a less powerful lens choice for “larger” macro subjects that is noticeably easier to use.
A little more than 18 months ago, Nauticam released The Finest Macro Accessory Lens for Compact and Mirrorless Cameras ever made. This lens, CMC-1, became the benchmark other lenses are measured against with extremely high magnification and overall sharpness.
CMC-2 is a follow-up designed to give photographers using compact systems more magnification choices without sacrificing quality.
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.
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 at all)
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 counter intuitive, 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.
BREAKTHROUGH LENS DESIGN
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 has been established with the Macro Convertor family.
UNCOMPROMISING OPTICAL QUALITY
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 colour 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 RX100 M4 can capture an image area 160mm (6.3 in.) wide at its full telephoto zoom position and 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!
OPTIMIZED FOR AUTOFOCUS
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.
A WORD ON MAGNIFICATION…
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.
Depth Rating 100m