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Universal Dome Port 210 AR

Universal Dome Port 210 AR

Product SKU : SS-30201

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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.


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.



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.



[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

Shipping & Payment

Delivery Options

  • SF Express (Shipping Fee Paid on Delivery)
  • S.F. Express - EF Locker Pickup
  • Office Pick-up
  • S.F. Express - Store Pickup
  • S.F. Express - Circle K Store Pickup
  • S.F. Express - 7-11 Store Pickup
  • S.F. Express - Office / Home Delivery
  • International Delivery (EMS Speedpost)

Payment Options

  • Alipay (HK)_SHOPLINE Payments
  • Credit Card
  • Paypal (+ 5% Service Charge)
  • Bank Transfer / FPS
  • WeChat Pay
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