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    Lens Ports | SEA&SEA

    Housings Ports

    Optical Dome Port II 100 (x3 Versions)

    Product No.30133 / 30134 / 30135
    System Sample(100M)

    Sample Photos (taken by Takuya Nakamura)

    100mm in diameter. The most compact and lightweight optical dome port SEA&SEA offers. Designed exclusively for fisheye lenses.


    Optical Dome Port ll 100 S? (#30133) (made-to-order item)
    Designed exclusively for Nikon AF DX Fisheye Nikkor ED 10.5mm F2.8G?

    Optical Dome Port ll 100 M? (#30134)
    Designed exclusively for Tokina AT-X 107 DX Fisheye 10-17mm F3.5-4.5, for Nikon and Canon cameras.

    Optical Dome Port ll 100 L? (#30135)
    Designed exclusively for Canon EF 8-15mm F4L USM* and Nikon AF-S Fisheye Nikkor 8-15mm F3.5-4.5 E ED
    *When using with a camera equipped with an APS - C sensor such as MDX - 80D, vignetting may occur in the four corners when using at the wide end (10 mm) and the shooting distance is short. In that case, use the tele (10.5 mm) or longer focal length.

    ?
    【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)] 130 x 64.5(S) / 81(M) / 91(L) mm / 5.1 x 2.5(S) / 3.2(M) / 3.6(L) inches
    [Weight] Approx. 372g / 13.1oz(S) 423g / 14.9oz(M) 450g / 15.9oz(L)
    [Depth rating] 100m / 330ft
    [Construction] POM resin ,BK7 crystal glass,(dome) and corrosion-resistant aluminum alloy(shade)
    [Accessories] Instruction Manual,Port Cover,Port Case
    ?
    Housings Ports

    Optical Dome Port II 165

    Product No.30136
    System Sample

    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.

    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
    ?

    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
    ?
    Housings Ports

    Optical Dome Port II 230

    Product No.30137
    System Sample

    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.


    【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.

    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

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

    NX Compact Dome Port

    Product No.56601
    Specifications
    [Dimensions (DIAxD)] 174x79.5mm / 7x3.2inch
    [Weight] Approx. 410g / 14.4oz
    [Depth rating] 60m / 200ft
    [Construction] Corrosion-resistant aluminum alloy (alumite coating, antireflection coating)
    - Dome: Acrylic
    - Shade: ABS resin
    Housings Ports

    Fisheye Dome Port 240

    Product No.30116
    This high quality dome port is very versatile and suitable for various wide-angle full frame lenses.
    * Image aberration is rarely apparent.

    *Enlarged image
    *System sample
    Specifications
    [Dimensions (DIAxD)] 250x104mm/10.0x4.2inches
    [Weight] Approx. 1,270g/44.5oz
    [Depth rating] 80m/262ft
    [Construction] Corrosion-resistant aluminum alloy (with anodization and anti-reflective coating)
    -Dome: Acrylic
    -Shades: ABS resin
    Housings Ports

    CX Compact Dome Port

    Product No.46100
    Specifications
    [Dimensions (DIAxD)] 174x87mm / 7x3.5inch
    [Weight] Approx. 360g / 12.6oz
    [Depth rating] 60m / 200ft
    [Construction] Corrosion-resistant aluminum alloy (alumite coating, antireflection coating)
    - Dome: Acrylic
    - Shade: ABS resin
    Zoom in with double tapping.
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