165mm in diameter. Versatile optical dome port, compatible with various fisheye and wide-angle lenses. Peripheral image quality will better when used with an Internal Correction Lens.

Features

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.

Equipment used: Canon 5D Mark lll and EF 16-35mm F2.8L ll. Depth: 5m

[ Specifications ]

[Dimensions (DIAxD)] 185 x 70 mm / 7.3 x 2.8 inches

[Weight] Approx. 938g / 33.1oz

[Depth rating] 100m / 330ft

[Construction] corrosion-resistant aluminum alloy (anodized),BK7 crystal glass,(dome) and POM resin (shade)

[Accessories] Instruction Manual,Port Cover,Port Case