Extension Rings

Extension rings are used to fine-tune the distance between a port and an underwater housing to fit lenses of different sizes. To find the right extension rings for your lens, contact us at Bluewater Photo!

Nauticam N120 to N100 Port Adaptor (29.3mm port adaptor)

MSRP:

Was:

Now: $325.00

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Nauticam N120 Extension Ring 90 II

MSRP:

Was:

Now: $457.00

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Nauticam N120 Extension Ring 80 II

MSRP:

Was:

Now: $422.00

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Nauticam N120 70mm Extension Ring II

MSRP:

Was:

Now: $413.00

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Nauticam N120 Extension Ring 60 II

MSRP:

Was:

Now: $404.00

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Nauticam N120 Extension Ring 55 II

MSRP:

Was:

Now: $404.00

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Nauticam N120 Extension Ring 50 II

MSRP:

Was:

Now: $395.00

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Nauticam N120 Extension Ring 40 II

MSRP:

Was:

Now: $395.00

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Nauticam N120 Extension Ring 35 II

MSRP:

Was:

Now: $387.00

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Nauticam N120 Extension Ring 30 II

MSRP:

Was:

Now: $378.00

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Nauticam N120 Extension Ring 25 II

MSRP:

Was:

Now: $369.00

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Nauticam N120 Extension Ring 20 II

MSRP:

Was:

Now: $360.00

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Nauticam N120 Extension Ring 10 II

MSRP:

Was:

Now: $158.00

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Nauticam N85 to N120 34.7MM Port Adaptor

MSRP:

Was:

Now: $544.00

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Nauticam 90mm Extension Ring Nau-21190

MSRP:

Was:

Now: $582.00
Nauticam E16 Pancake Port with 67mm Thread

MSRP:

Was:

Now: $394.00

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Nauticam N85 to N120 Port Adapter 60mm for Sony E-Mount

MSRP:

Was:

Now: $518.00

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Nauticam N100 Extension Ring 30

MSRP:

Was:

Now: $351.00

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Nauticam N100 Extension Ring 40

MSRP:

Was:

Now: $351.00

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Nauticam N100 Extension Ring 50

MSRP:

Was:

Now: $388.00

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Nauticam N85 to N120 55mm Port Adapter with Lens Control Knob

MSRP:

Was:

Now: $685.00

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Nauticam N200 Extension Ring 30

MSRP:

Was:

Now: $949.00

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Nauticam N200 Extension Ring 40

MSRP:

Was:

Now: $1,089.00

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Nauticam N200 Extension Ring 50

MSRP:

Was:

Now: $1,221.00

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Nauticam N120 to N100 Port Adaptor (29.3mm port adaptor)

Free Shipping on Orders Over $200 to the US and Canada

SKU: NA-21329

Nauticam N120 to N100 Port Adaptor (29.3mm port adaptor) Product Overview: A step-down port adaptor to be able to mount N100 ports to the N120 Housings. Please see Nauticam Port Chart

MSRP:

Was:

Now: $325.00

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Nauticam N120 Extension Ring 90 II

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-22190

Nauticam N120 Extension Ring 90 II Product Overview: The Nauticam N120 Extension Ring 90 II has been designed to extend the port by 90mm (effective length) Please see Nauticam Port Chart We offer lifetime support with all...

MSRP:

Was:

Now: $457.00

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Nauticam N120 Extension Ring 80 II

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-22180

Nauticam N120 Extension Ring 80 II Product Overview: The Nauticam N120 Extension Ring 80 II has been designed to extend the port by 80mm (effective length) and popularly used with these lenses. Nikon 14-24mm Nikon 16-35mm Canon...

MSRP:

Was:

Now: $422.00

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Nauticam N120 70mm Extension Ring II

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-22170

Nauticam N120 70mm Extension Ring II Product Overview: The Nauticam N120 Extension Ring 70 II has been designed to extend the port by 70mm (effective length) and popularly used with these lenses. Sigma 17-70mm Nikon 12-24mm Nikon 14-24mm Nikon...

MSRP:

Was:

Now: $413.00

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Nauticam N120 Extension Ring 60 II

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-22160

Nauticam N120 Extension Ring 60 II The Nauticam N120 Extension Ring 60 II is made from aluminum anodized alloy and has an effective length of 60mm with a N120 port system. Please see Nauticam Port Chart We offer lifetime support with...

MSRP:

Was:

Now: $404.00

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Nauticam N120 Extension Ring 55 II

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-22155

Nauticam N120 Extension Ring 55 II Product Overview: The Nauticam N120 Extension Ring 55 II has been designed to extend the port by 55mm. Please see Nauticam Port Chart We offer lifetime support with all purchases.Please...

MSRP:

Was:

Now: $404.00

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Nauticam N120 Extension Ring 50 II

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-22150

Nauticam N120 Extension Ring 50 II Product Overview: The Nauticam N120 Extension Ring 50 II has been designed to extend the port by 50mm Please see Nauticam Port Chart We offer lifetime support with all purchases.Please call...

MSRP:

Was:

Now: $395.00

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Nauticam N120 Extension Ring 40 II

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-22140

Nauticam N120 Extension Ring 40 II Product Overview: The Nauticam N120 Extension Ring 40 II has been designed to extend the port by 40mm and is popularly used with the following lenses and Nauticam 8 inch Dome Port: Sigma 8-16mm Tokina 10-17mm...

MSRP:

Was:

Now: $395.00

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Nauticam N120 Extension Ring 35 II

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-22135

Nauticam N120 Extension Ring 35 II Product Overview: Nauticam N120 Extension Ring 35 with Lock is made from aluminum alloy and is designed to extend the port by 35mm. Please see Nauticam Port Chart We offer lifetime support with...

MSRP:

Was:

Now: $387.00

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Nauticam N120 Extension Ring 30 II

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-22130

Nauticam N120 Extension Ring 30 II Product Overview: The Nauticam N120 Extension Ring 30 II has been designed to extend the ports by 30mm. Please see Nauticam Port Chart We offer lifetime support with all purchases.Please call or...

MSRP:

Was:

Now: $378.00

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Nauticam N120 Extension Ring 25 II

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-22125

Nauticam N120 Extension Ring 25 II Product Overview: The Nauticam N120 Extension Ring 25 II has been designed to extend the ports by 25mm Check out Nauticam Port Chart We offer lifetime support with all purchases.Please call or...

MSRP:

Was:

Now: $369.00

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Nauticam N120 Extension Ring 20 II

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-22120

Nauticam N120 Extension Ring 20 II Product Overview: The Nauticam N120 Extension Ring 20 II has been designed to extend the ports by 20mm and popularly used with lenses such as Tokina 10-17mm FE Lens to place the dome in the proper optical...

MSRP:

Was:

Now: $360.00

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Nauticam N120 Extension Ring 10 II

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-22110

Nauticam N120 Extension Ring 10 II Product Overview: The Nauticam N120 Extension Ring 10 II has been designed to extend the ports by 10mm and popularly used with these lenses to place the dome in the proper position optically. Sigma 15mm fisheye...

MSRP:

Was:

Now: $158.00

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Nauticam N85 to N120 34.7MM Port Adaptor

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-36064

Nauticam N85 to N120 34.7MM Port Adaptor For Metabones EF-MFT Mount T Speed Booster Ultra 0.71x Part #: Nau-36064 Product Overview: The adaptor is designed to convert N85 port opening to N120 with the used of Metabones EF-MFT Mount T Speed Booster...

MSRP:

Was:

Now: $544.00

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Nauticam 90mm Extension Ring Nau-21190

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-21190

Nauticam 90mm Extension Ring DISCONTINUED Product Overview: This is the Nauticam 90mm extension ring. * For instructions on installation please click here Please see Nauticam Port Chart We dive with our products all the time. Please...

MSRP:

Was:

Now: $582.00
Nauticam E16 Pancake Port with 67mm Thread

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-36126

Nauticam E16 Pancake Port With 67mm Thread Manufactured On-Demand: Non-Cancellable, Non-Refundable and hmight require 3-5 Weeks Lead Time Product Overview: Nauticam E16 Pancake Port with 67mm Thread is part of the N85 port system and features an...

MSRP:

Was:

Now: $394.00

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Nauticam N85 to N120 Port Adapter 60mm for Sony E-Mount

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-36204

Nauticam N85 to N120 60mm Port Adapter For Sony E-Mount Part #: Nau-36204 Product Overview: Nauticam N85 to N120 Port Adapter has been designed to convert from an N85 port opening to N120 port opening to use with N85 Sony housings with Metabones EF...

MSRP:

Was:

Now: $518.00

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Nauticam N100 Extension Ring 30

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-37401

Nauticam N100 Extension Ring 30 Part #: Nau-37401 Product Overview: Nauticam Extension Ring 30 is designed to be used with N100 port system and has an effective length of 30mm Please see Nauticam Port Chart We dive with our products all the time...

MSRP:

Was:

Now: $351.00

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Nauticam N100 Extension Ring 40

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-37402

Nauticam N100 Extension Ring 40 Part #: Nau-37402 Product Overview: Nauticam Extension Ring 40 is designed to be used with N100 port system and has an effective length of 40mm Please see Nauticam Port Chart We dive with our products all the time...

MSRP:

Was:

Now: $351.00

Add to Cart
Nauticam N100 Extension Ring 50

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-37403

Nauticam N100 Extension Ring 50 Part #: Nau-37403 Product Overview: Nauticam Extension Ring 50 is designed to be used with N100 port system and has an effective length of 50mm Please see Nauticam Port Chart We dive with our products all the time...

MSRP:

Was:

Now: $388.00

Add to Cart
Nauticam N85 to N120 55mm Port Adapter with Lens Control Knob

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-36401

Nauticam N85 to N120 55mm Port Adapter with Lens Control Knob Part #: Nau-36401 Product Overview: The Nauticam port adapter converts your N85 port opening to accomodate N120 ports. It also has an integrated lens control knob Please see Nauticam...

MSRP:

Was:

Now: $685.00

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Nauticam N200 Extension Ring 30

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-16402

Nauticam N200 Extension Ring 30 Part #: NAU-16402 Product Overview: Nauticam N200 Extension Ring 30 is designed to provide a 30mm effective length to an N200 Port setup. Please see Nauticam Port Chart We dive with our products all the time. Please...

MSRP:

Was:

Now: $949.00

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Nauticam N200 Extension Ring 40

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-16403

Nauticam N200 Extension Ring 40 Part #: NAU-16403 Product Overview: Nauticam N200 Extension Ring 40 is designed to provide a 40mm effective length to an N200 Port setup. Please see Nauticam Port Chart We dive with our products all the time. Please...

MSRP:

Was:

Now: $1,089.00

Add to Cart
Nauticam N200 Extension Ring 50

Free Shipping on Orders Over $200 to the US and Canada

SKU: NAU-16404

Nauticam N200 Extension Ring 50 Part #: NAU-16404 Product Overview: Nauticam N200 Extension Ring 50 is designed to provide a 50mm effective length to an N200 Port setup. Please see Nauticam Port Chart We dive with our products all the time. Please...

MSRP:

Was:

Now: $1,221.00

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