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SEA & SEA Optical Dome Port II 165
SEA & SEA Optical Dome Port II 165
SEA & SEA Optical Dome Port II 165
Mfr# 30136
Our Price: $1,099.95
Availability: In Stock
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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.


  • 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.

Difference in image quality between the Fisheye Dome Port 240 and the Optical Dome Port ll 165 under backlit conditions.

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

Function / Efficiency
Dome Size 165mm / 6.5 inch
Depth rating 100m / 330 ft.
Port Mount Sea&Sea MDX Mount
Housings Sea&Sea MDX-series Housing
Spare O-Ring Sea&Sea Spare O-Ring Set #62101
Dimensions 185 x 70 mm / 7.3 x 2.8 inches (DIA x D)
Weight Approx. 938g / 33.1 oz
Materials Corrosion-resistant aluminum alloy (with anodization and anti-reflective coating)
-Dome: BK7 crystal glass
-Shades: POM resin
Warranty 1 Year
User Manual  Download User Manual 
  1. Dome Port
  2. Dome Port Cover
  3. Port Case
  4. User manual
  5. 1 Year warranty


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