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DX Macro Port 15
Product No. 30139

[Compatible Lens]
Canon EF-S 35mm Macro IS STM

* Although the port has an M67 screw mount, no close-up lens can be used due to the lens's very short close focusing distance.


Port mounted on housing and the lens's close focusing distance.

Sample Images

Specifications
[Dimensions (DIAxD)] 132x48mm / 5.2x1.9inches
[Weight] Approx. 308g / 10.9 oz
[Depth rating] 100m / 330ft
[Construction] Corrosion-resistant aluminum alloy (anodized, anti-reflection coating on the inner surface) + Tempered glass
[Distance] Between the port mount and inner glass surface : 14.5mm

Manual Download



DX Macro Port 87
Product No. 30119

[Compatible Lens]
Canon EF100mm F2.8L Macro IS USM
Canon RF100mm F2.8L Macro IS USM
Nikon AF-S VR Micro Nikkor ED105mm F2.8G (IF)
Nikon AF-S DX Micro Nikkor 85mm F3.5G ED VR

* This port accommodates listed lenses without additional port-base or extension ring. Port has M67 screw mount.


Specifications
[Dimensions (DIAxD)] 128x120.5mm / 5.0x4.7inches
[Weight] Approx. 505g / 17.8 oz
[Depth rating] 100m / 330ft
[Construction] Corrosion-resistant aluminum alloy (anodized, anti-reflection coating on the inner surface) + Tempered glass
[Distance] Between the port mount and inner glass surface : 87mm / 3.4 inches

Manual Download



Extension Ring 30L
Product No. 30124


Specifications
[Dimensions (DIAxD)] 129 x 45.5mm / 5.1 x 1.8 inches
[Weight] Approx. 194g / 6.8 oz
[Depth rating] 100m / 330ft
[Construction] Corrosion-resistant aluminum alloy (alumite coating)
[Distance] Between the mount and the front end: 30mm / 1.2 inches (with port lock)

Manual Download



Extension Ring 40L
Product No. 30125


Specifications
[Dimensions (DIAxD)] 129 x 55.5mm / 5.1 x 2.2 inches
[Weight] Approx. 234g / 8.3 oz
[Depth rating] 100m / 330ft
[Construction] Corrosion-resistant aluminum alloy (alumite coating)
[Distance] Between the mount and the front end: 40mm / 1.6 inches (with port lock)

Manual Download



Universal Dome Port 210 ARⅡ
Product No. 30204

By designing a dedicated mold, Sea&Sea has been able to incorporate a meniscus lens design in the UDP dome construction, which reduces the spherical aberration and beam waste.
Therefore, the refractive power changes gradually from the center of the port to the peripheral area, allowing the different radii of curvature to create a clearer focus at the peripheral areas compared to that of conventional ports.

By using the highest optical grade PMMA material, the UDP 210 ARII has a refractive index close to glass allowing high degree of light transmission. In addition, Sea&Sea has achieved a 7-layer Anti Reflective (AR) coating to reduce internal reflection and the effects of decreased contrast.

Comparison of lens reflection 1
Comparison of lens reflection 2

The port has also been designed with usability in mind, as the dome can be replaced quickly and easily on the spot in any environment. In addition, the dome is also supplied with an additional bayonet mount, that can be simply attached with the six existing screws to provide compatibility with all 3rd party Nauticam housings.

*Compatible with all lenses listed on the port system chart when the port combination follows the UDP 210 AR.

Specifications
Size: Maximum diameter 250 mm x depth 104 mm. Dome Diameter 210mm
Weight: 1,310g (2.88 lbs)
Depth Rating: 100 M (328 ft)
Body Material: Corrosion-resistant aluminum alloy (anodized, internal anti-reflection coating)
Hood: ABS resin
Dome Material: Special optical PMMA


Universal Dome Port 210
Product No. 30205

By designing a dedicated mold, Sea&Sea has been able to incorporate a meniscus lens design in the dome construction, which reduces the spherical aberration and beam.
Therefore, the refractive power changes gradually from the center of the port to the peripheral area, allowing the different radii of curvature to create a clearer focus at the peripheral areas compared to that of conventional ports. The new UDP 210 will no replace the discontinued Fisheye dome 240 #30116
By using the highest optical grade PMMA material, the UDP 210 has a refractive index close to glass allowing high degree of light transmission.

The port has also been designed with usability in mind, as the dome can be replaced quickly and easily on the spot in any environment. In addition, the dome is also supplied with an additional bayonet mount, that can be simply attached with the six existing screws to provide compatibility with all 3rd party Nauticam housings.

*Compatible with all lenses listed on the port system chart, when the port combination conforms to the Fisheye Dome 240.

Specifications
Size: Maximum diameter 250 mm x depth 104 mm. Dome Diameter 210mm
Weight: 1,310g (2.88 lbs)
Depth Rating: 100 M (328 ft)
Body Material: Corrosion-resistant aluminum alloy (anodized, internal anti-reflection coating)
Hood: ABS resin
Dome Material: Special optical PMMA


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

Manual Download



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


Universal Dome Port 210 / AR
Product No. 30201

Dome produced from Planext ® 
PLANEXTⓇ is amorphous bioplastic which 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.
*PLANEXT Ⓡ is a Teijin Limited registered trade name.

Optical Performance
Compared with conventional acrylic material or optical glass, PLANEXⓇ produces superior or better optical performance.
(See chart)
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).

* Lens having convex curvature on one side and concave curvature on the other side.

Comparison of lens reflection 1
Comparison of lens reflection 2


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 UDP 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 UDP 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 domes can be replaced on the spot.

Specifications
[Dimensions (DIAxD)] 250x104mm/10.0x4.2inches
[Weight] Approx. 1,310g/46.2oz
[Depth rating] 100m/328ft
[Construction] Corrosion-resistant aluminum alloy (with anodization and anti-reflective coating)
-Dome: Special optical resin
-Shades: ABS resin



Port and Ring gear set
for Canon EF 11-24mm F4L USM

Product No. 30131

The set consists of: Fisheye Dome Port 240 for EF 11-24mm F4L USM, Conversion Ring 25 for EF 11-24mm F4L USM, NX Dome Port Cover, Zoom Gear for EF 11- 24mm F4L USM and Rear Port Cover (L). 

Specifications
Fisheye Dome Port 240 for EF 11-24mm F4L USM
Spare O-ring(#62134)
[Dimensions (DIAxD)] 250 x 104 mm / 9.8 x 4.1 inches
[Weight] Approx. 1,225g / 43.2oz
[Depth rating] 80m / 260ft
[Construction] corrosion-resistant aluminum alloy (anodized), acrylic (dome) and ABS (shade)

Conversion Ring 25 for EF 11-24mm F4L USM
Spare O-ring (#62101)
[Dimensions (DIAxD)] 133 x 40.5mm / 5.2 x 1.6 inches
[Weight] Approx. 215g / 7.6 oz
[Depth rating] 100m / 330ft
[Construction] Corrosion-resistant aluminum alloy (alumite coating)
[Distance] Between the mount and the front end: 25mm / 1 inches (with port lock)

Notice
* Extension Ring 40L is also required in order to use the port and zoom gear set.
* The port and lens set is only compatible with housings equipped with a lens release button on the front case. When a lens is mounted on a camera in a housing without a lens lease button, the lens cannot be removed.
* Auto focus only (manual focus not possible).


Manual Download



Optical Dome Port
Product No. 30104

This AR multi-coated glass dome port is ideal for wide-angle photography with a digital SLR camera. It comes with a port case and a dome port cover.

- Greatly reduces peripheral aberration (distortion) so images are clear from corner to corner.
- Efficient light transmission sharpens images.
- Made of glass so it sheds water droplets, excellent for clear over/under shots (half above water, half below).

Specifications
[Dimensions (DIAxD)] 181x78mm / 7.2x3.1inch
[Weight] Approx. 950g / 33.2oz
[Depth rating] 60m / 200ft
[Construction] Corrosion-resistant aluminum alloy
(anodized, anti-reflection coating on the inner surface)
- Dome: Optical glass BK7 (AR multi-coated)
- Shade: ABS resin
*Consult a SEA&SEA authorized service for more compatibility information.



ML Dome Port
Product No. 30121

Acrylic dome port for mirrorless interchangeable camera housings.

Specifications
[Dimensions (DIAxD)] 154 x 72 mm / 6.1 x 2.8 inches
[Weight] Approx. 280g / 9.9oz
[Depth rating] 80m / 260ft
[Construction] corrosion-resistant aluminum alloy (anodized), acrylic (dome) and ABS (shade)


Manual Download



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.

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



NX Fisheye Dome Port
Product No. 56401

Specifications
[Dimensions (DIAxD)] 242x104mm / 9.7x4.2inch
[Weight] Approx. 1,000g / 35oz
[Depth rating] 60m / 200ft
[Construction] Corrosion-resistant aluminum alloy (alumite coating, antireflection coating)
- Dome: Acrylic
- Shade: ABS resin

Compact Macro Port 52
Product No. 56241


Specifications
[Dimensions (DIAxD)] 102.5x68mm / 4.1x2.7inch
[Weight] Approx. 259g / 9.1oz
[Depth rating] 100m / 330ft
[Construction] Corrosion-resistant aluminum alloy (alumite coating) + Tempered glass
[Distance] Between the mount and the inner glass surface: 38.5mm / 1.5 inches


RDX Port Base S
Product No. 30108

Specifications
[Dimensions (DIAxD)] 102x15mm / 4.1x0.6inch
[Weight] Approx. 90g / 3.2oz [Depth rating] 100m / 330ft
[Construction] Corrosion-resistant aluminum alloy (anodized)
[Distance] Between the mount and the front end: 11.2mm / 0.4 inch

Manual Download



RDX Port Base L
Product No. 30109


Specifications
[Dimensions (DIAxD)] 132x55mm / 5.3x2.2inch
[Weight] Approx. 300g / 10.5oz
[Depth rating] 100m / 330ft
[Construction] Corrosion-resistant aluminum alloy (anodized)
[Distance] Between the mount and the front end: 31.2mm / 1.2 inches

Manual Download



Front Port Cover (L)
Product No. 51240

NX Zoom Port.

Front Port Cover (M)
Product No. 51230

NX Custom Flat Port. 
NX Standard Flat Port.

RDX Rear Port Cover
Product No. 46113

RDX-series housings.

ML Housing Body Cap
Product No. 46120

Mirrorless interchangeable lens camera housings.

ML Dome Port Cover
Product No. 46119

ML Dome Port.

Left Grip Extension
Product No. 46117

With this product, the left housing grip can be positioned forward to provide easy access to the focus knob on the Extension Ring 46 with Focus Knob with Focus Gear. 

Specifications
[Dimensions (WxHxD)] 10 x 25 x 54mm / 0.4 x 1.0 x 2.1 inches
[Weight(including accessories)] Approx. 55g / 1.9oz
[Depth rating] 100m / 330ft
[Construction] Corrosion-resistant aluminum alloy (alumite coating)

*System sample


Wide Port Cover
Product No. 46101

Compact Wide Port L. 
RDX Standard Port.

Front Port Cover (S)
Product No. 51220

Compact Macro Ports.


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