Lens Ports | SEA&SEA

Housings Ports

Optical Dome Port II 100 (x3 Versions)

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

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

 
【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

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

Product No.30131
*Enlarged image

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).
Housings Ports

ML Dome Port

Product No.30121
*Enlarged image

Acrylic dome port for mirrorless interchangeable camera housings.
[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)
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.