Sea&Sea Optical Dome Port II 230 #30137

[Description]

230mm in diameter. Versatile optical dome port, compatible with various fisheye and wide-angle lenses. Boasts the best image quality, including peripheral image quality. Suitable for half-underwater-half-topside images. Peripheral image quality will be even better when used with an Internal Correction Lens.

• Uses high quality BK7 crystal glass.
• Two different anti-reflective coatings are employed to optimize image quality, one for the exterior and the other for the interior of the Optical Domes. A multi-layer coating is used on the dome exteriors and the interior of the domes are coated with silicon-dioxide to effectively suppress flare and ghosting. As a result, the refractive index of each port is reduced to less than 0.01% and the domes produce extremely high-contrast images.

[Specifications]

[Dimensions (DIAxD)] 250 x 120 mm / 9.8 x 4.7 inches
[Weight] Approx. 2100g / 74.1oz
[Depth rating] 100m / 330ft
[Construction] POM resin ,BK7 crystal glass,(dome) and corrosion-resistant aluminum alloy(shade)
[Accessories] Instruction Manual,Port Cover,Port Case

[Manual]

• Download
• Verified System Chart
• System Chart with internal correction lens