Sea & Sea 210mm A/R Universal Underwater Dome Port
Dome produced from Planext
PLANEXT is an amorphous bioplastic that helps realize carbon neutrality. In cooperation with TEIJIN LIMITED, SEA&SEA has succeeded in producing dome ports made from PLANEXT which provides properties ideally suited for underwater photography.
Optical Performance
Compared with conventional acrylic material or optical glass, PLANEX produces superior or better optical performance.
With high-precision injection molding methods, SEA&SEA has succeeded in producing a dome that has the same curvature as a concave meniscus lens*. The 210 AR dome’s optical distortion is as small as that of optical glass lenses. When used with an internal correction lens, the best image quality required for high-end cameras can be obtained. The dome is treated with a multi AR coating to prevent internal reflection from occurring (see comparison below).
Strength Performance
Because of PLANEXT’s exceptional cohesive strength (Charpy impact strength) and due to a newly designed base, the dome ports’ depth rating is now 100m/330ft.
Compatibility
Compatible with all the wide-angle conversion lenses on the system charts posted on SEA&SEA’s website.
The Underwater Dome Port 120 AR is designed with a housing bayonet mount that is easily replaceable. An additional bayonet compatible with a current popular housing manufacturer is also included for user versatility.
Dome Replacement
The Underwater Dome Port 210 AR has been designed with usability in mind. The dome can be quickly and easily replaced by the user in any environment, therefore even if due to an unfortunate incident, the domes can be replaced on the spot.
Specifications
- Dimensions (DIAxD): 250x104mm/10.0x4.2inches
- Weight: Approx. 1,310g/46.2oz
- Depth rating: 100m/330ft
- Construction: Corrosion-resistant aluminum alloy (with anodization and anti-reflective coating)
- Dome: Special optical resin
- Shades: ABS resin
