Nauticam SMC-2 4x 微距/近攝鏡 (M67螺牙)
新的 SMC-2 鏡頭建立在成功的 SMC-1 的基礎上，放大倍率幾乎提升了一倍。儘管如此，它仍保持著極高的圖像品質，遵循 SMC-1 設定的示例。
在 SMC 之前，在水下實現“超級微距”意味著使用專為空中使用而設計的工具。這些工具根本沒有考慮到水中射擊的物理特性。 SMC 採用了一種截然不同的方法：將系統-->相機、鏡頭、端口、空氣和水-->作為一個整體來對待，並在轉換鏡頭設計中考慮空氣-水界面，以盡可能獲得最佳圖像質量。這種改進是驚人的、可衡量的，並且已經建立了水下宏觀成像的新標準。
Two key advantages to this internationally patent pending new optical design:
- Higher Magnification Than Other Popular Super Macro Tools with Increased Working Distance
- Better Edge to Edge Image Quality, Higher Contrast, and Lower Color Fringing
Edward Lai, Managing Director of Nauticam, has utilized a revolutionary approach in developing the SMC-2. This is a completely new lens design, developed through hundreds of engineering hours utilizing computer software to model the optical properties of the complete underwater imaging system. Incorporating these factors into the design yields amazing sharpness, contrast, and clarity that isn't available from a simple magnifying lens for use in air sealed in a waterproof enclosure.
UNCOMPROMISED OPTICAL QUALITY
The Super Macro Converter -2 is constructed from lenses are precision crafted of specially formulated low dispersion optical grade glass, ground to the most demanding standards. These exceptional measures, enhanced by broadband anti-refective 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. These optics are assembled in a rugged hard anodized aluminum housing, and nitrogen purged during assembly to eliminate fogging.
When combined with a full frame camera and a 100mm or 105mm macro lens, the device converts the optical system to provide a maximum of 4X magnification factor.
IMPROVED SHARPNESS AND CONTRAST
As the Super Macro Converter 2 is optimized explicitly for using together with a macro lens underwater, images captured exhibit exceptional sharpness compared with conventional magnification lenses. Thanks to the broadband multi-layer anti-reflection coating on each surface of the lenses, images also exhibit higher contrast.
SUPERB LIGHT TRANSMISSION
All the lens elements installed inside the SMC-2 are optically optimized to appropriate diameters so as to provide maximum light transmission. The SMC-2 doesn't suffer from vignette issues under even the most extreme conditions. The broad band multi-layer anti-reflection coating on all surfaces also greatly improves light transmission.
OPTIMIZED FOR AUTOFOCUS
By utilizing a specially developed algorithm in the optimization process, the SMC-2 renders superior image quality over the full focusing range of the camera lens (which becomes ~20 to ~40 mm in front of the SMC). Also benefitting from the high brightness and contrast of the image, the autofocus system of the camera usually works acceptably well within this range.
High resolution was a primary design goal of the SMC-2 project. This has been achieved using computer aided optimization and high grade optical glasses with unique refractive and dispersion properties. Images taken with this new system exhibit very high resolution and quality. Results have exceeded expectations, and these images rival the quality of the macro lens in air.
The Converter retains the optical properties of the macro lens for the whole system underwater, resulting in a blurred (out of focus) background that has a pleasing smoothness and creamy look, without the normal purple and green fringing.
Due to the overall superior optical performance of the SMC-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.
重 量: 540g