Ports: The optical interface
A variety of lenses and ports is essential for great photography – above and below the surface. Not only are they the key element of photographic expression, but they’re also the photographer’s most important resource.
The interface for achieving perfect images in an underwater housing is an easily exchangeable front port. The SEACAM front port system has been the benchmark for perfect optical imaging quality for years. Only through precisely manufactured and carefully adapted ports for macro, special and wide-angle can high-quality lenses retain their highest performance, brilliance and sharpness even under water.
The SEACAM port system offers a wide range of high-quality front ports for the demanding requirements and individual needs of underwater photography. The curated selection of products is the result of the close, long-term cooperation with experienced optics manufacturers and includes ports for macro and super macro lenses, standard focal lengths, wide angle and super wide angle as well as fisheye and special optics such as the Nikonos RS Conversion lenses and ports.
To ensure a special degree of flexibility, our front ports are combined with port extensions in different lengths. This way, a wide variety of lenses can be adapted to individual requirements in just a few quick steps and you can save space when travelling as well.
IMAGE QUALITY DELUXE
Light is diffracted and reflected between air, water and glass. For a high image quality, it is therefore important that all elements of the optical system have maximum transmission and that the position of the lens in relation to the glass is calculated very meticulously. We have used optically neutral and hardened mineral lenses for our front port system for years, thus guaranteeing the consistently high image quality that characterizes our products.
The image quality is achieved through precisely measured radii and the extremely precise placement of the lens. Only when every ray of light passes through the glass unbroken, does the lens retain all of its high-quality properties such as brilliance, edge sharpness, contrast and angle of view.
The glasses used for our front ports are of the highest transparency, precisely cut and carefully polished. In order to achieve a largely reflection-free transmission of light, an innovative layer is applied to the inside of the lenses. This optical coating ensures a 3–5% higher light output with up to 70% reduced reflection and excellent contrast with every shot.
Depending on the requirements, the bases for the ports are made of synthetics or a high-strength light metal alloy. The ports come with a double O‑rings seal and are easy to change. A unique feature is the secure connection of a screw thread and bayonet into one unit. Simple, automatic and powerful, the bayonet thread pulls the O‑ring into the sealing surface with just one turn and positions the port exactly at the stop. A second O‑ring provides additional protection against dirt and fine-grained sand. In addition, all SEACAM front ports have an enlarged lens passage to enable the use of large and fast lenses. Protective caps made of plastic or soft neoprene guarantee optimal protection and can be removed quickly and easily.
The individual needs and requirements of underwater photographers are always in the foreground for us. But in the case of optics in particular, the simplest things turn out to be the most challenging. Therefore, only close cooperation and an intensive contact with photographers and experts pave the way to new and improved solutions.
Capturing unforgettable moments and the vibrancy, beauty and uniqueness of the underwater world is the goal of every underwater photographer. Only the highest quality standards and constant dialogue with our customers guarantee the perfect implementation and thus an unadulterated reproduction of these fascinating photographic moments.
With the SEACAM front port system, we stand for the finest optics – the result of decades of experience, uncompromisingly high quality standards and continuous further development.
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