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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!

120 of 140 Items
  • AOI Extension Ring 24mm for Olympus PEN Housings - EXT-24

    AOI Extension Ring 24mm for Olympus PEN Housings - EXT-24

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

    SKU: AOI-EXT-24

    AOI Extension Ring 24mm for Olympus PEN Housings - EXT-24 Currently Unavailable For Olympus 8mm f1.4 Pro Lens  Part #: AOI-EXT-24 Product Overview: The AOI port system for the Olympus PEN underwater housings allow the photographer to expand their...

    $165.00
  • Nauticam N120 80mm Extension Ring (Type 1)

    Nauticam N120 80mm Extension Ring (Type 1)

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

    SKU: NAU-21180

    Nauticam N120 Extension Ring 80 (Type 1)   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 16-35mm ...

    $510.00
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  • Zen Adapter for Sea and Sea Ports on Nauticam Mirrorless Housings

    Zen Adapter for Sea & Sea Ports on Nauticam Mirrorless Housings

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

    SKU: ZEN-PA-N85-SS-60

    Zen Adapter for Sea & Sea Ports on Nauticam's Mirrorless Housings This adapter lets you use Sea & Sea ports with Nauticam's series of mirrorless housings, as well as adding 60mm to the length of the port. If you have any questions about this...

    $199.00
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  • Aquatica Extension Ring 21.5mm

    Aquatica Extension Ring 21.5mm

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

    SKU: AQ-48463

    Aquatica Extension Ring 21.5mm part# AQ-18463 Product Overiew: This extension ring is compatible with Aquatica DSLR underwater housing line.   Please click here for Aquatica Port Chart. Please call the Bluewater Photo team at 310-633-5052 with any...

    $269.00
    Add to Cart
  • Ikelite 1.25 Inch Port Extension 5510.54

    Ikelite 1.25 Inch Port Extension 5510.54

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

    SKU: IKE-5510.54

    Ikelite Port Extension  Part # Ike-5510.54 Product Overview: This Ikelite Port Extension extends the dome port by 1.25 inches, to accomodate larger size zoom lenses in the underwater housing.   Please see Ikelite Port Chart We dive with our products...

    $225.00
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  • Sea and Sea Extension Ring 46 with Focus Knob

    Sea & Sea Extension Ring 46 with Focus Knob

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

    SKU: SS-30117

    Sea & Sea Extension Ring 46 with Focus Knob :Part #" SS-30117 Product Overview: Extension ring 46 with focus knob allows you to manual focus with Sea&Sea MDX housings when also using the correct focus gear on your lens. This new extension...

    $579.95
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  • Sea and Sea Locking Extension Ring 40L

    Sea & Sea Locking Extension Ring 40L

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

    SKU: SS-30125

    Sea & Sea Locking Extension Ring 40L Product Overview: Sea & Sea's new Locking Extension Rings provide additional security to your underwater camera rig. Dimensions (DIAxD) 129 x 55.5mm / 5.1 x 2.2 inches Weight Approx. 234g / 8.3 oz ...

    $299.95
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  • Sea and Sea Locking Extension Ring 30L

    Sea & Sea Locking Extension Ring 30L

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

    SKU: SS-30124

    Sea & Sea Locking Extension Ring 30L Product Overview: Sea & Sea's new Locking Extension Rings provide additional security to your underwater camera rig. Dimensions (DIAxD) 129 x 45.5mm / 5.1 x 1.8 inches Weight Approx. 194g / 6.8 oz ...

    $284.95
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  • Sea and Sea Locking Extension Ring 20L

    Sea & Sea Locking Extension Ring 20L

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

    SKU: SS-30123

    Sea & Sea Locking Extension Ring 20L Product Overview: Sea & Sea's new Locking Extension Rings provide additional security to your underwater camera rig. Dimensions (DIAxD) 129 x 35.5mm / 5.1 x 1.4 inches Weight Approx. 154g / 5.4...

    $279.95
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  • Nauticam N85 Mini Extension Ring 17

    Nauticam N85 Mini Extension Ring 17

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

    SKU: NAU-36617

    Nauticam N85 Mini Extension Ring 17 Part #: Nau-36617 Product Overview: Mini Extension ring for Nauticam Mirrorless Housings.    Please see Nauticam Port Chart We dive with our products all the time. Please call the Bluewater Photo team at...

    $237.00
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  • Nauticam N120 55mm Extension Ring Nau-21155

    Nauticam N120 55mm Extension Ring (Type 1)

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

    SKU: NAU-21155

    Nauticam N120 55mm Extension Ring (Type 1)   Product Overview: This is the Nauticam 55mm extension ring with lock for dSLR underwtaer housings & ports with N120 port mount If you have any questions about the compatibility of this extension...

    $457.00
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  • Aquatica Extension Ring 39.5mm #18462

    Aquatica Extension Ring 39.5mm #18462

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

    SKU: AQ-48462

    Aquatica Extension Ring 39.5mm Part #: AQ-18462 Product Overview: For use with Aquatica ports in order you utilize your favorite lens.     Please click here for Aquatica Port Chart. Please call the Bluewater Photo team at 310-633-5052 with any...

    $269.00
    Add to Cart
  • Ikelite Mirrorless Lens Extension - 1.2 Inch 5516.65

    Ikelite Mirrorless Lens Extension - 1.2 Inch 5516.65

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

    SKU: IKE-5516.65

    Ikelite Mirrorless Lens Extension - 1.2 Inch Part # 5516.65 Extends a Mirrorless Lens Port by 1.2 inches (30mm) for use with longer lenses.Lens compatibie with Olympus M.Zuiko 12-40mm What's Included: Lens extension Spare securing screws ...

    $200.00
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  • Ikelite DLM 2.2 Inch Port Extension Ikelite DLM 2.2 Inch Port Extension Ikelite DLM 2.2 Inch Port Extension

    Ikelite DLM 2.2 Inch Port Extension

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

    SKU: IKE-5516.70

    Ikelite DLM 2.2 Inch Port Extension   The Ikelite DLM 2.2 Inch Port Extension extends the port by 2.2 inches for longer lenses. Also compatible with Ikelite Canon SL1 Housing and Canon 100mm USM Macro Lens for autofocus use only. It is talso very...

    $219.95
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  • Aquatica 52mm Extension Ring for Mirrorless Housings 30604

    Aquatica 52mm Extension Ring for Mirrorless Housings 30604

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

    SKU: AQ-30604

    Aquatica 52mm Extension Ring Part #: AQ-30604 Product Overview: For use with Aquatica mirrorless underwater housings The ring is required for lenses including: Olympus 12-50mm micro-four thirds lens   Please click here for Aquatica Port Chart...

    $199.00
    Add to Cart
  • Aquatica 32mm extension ring 30601

    Aquatica 32mm extension ring 30601

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

    SKU: AQ-30601

    Aquatica 32mm Extension Ring Part #: AQ-30601 Product Overview: For Panasonic 7-14mm F4 lens and Aquatica mirrorless underwater housings 32mm in length   Please click here for Aquatica Port Chart. Please call the Bluewater Photo team at...

    $189.00
    Add to Cart
  • Aquatica 58mm Extension Ring for 9-18mm and 12-40mm

    Aquatica 58mm Extension Ring for 9-18mm and 12-40mm

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

    SKU: AQ-30602

    Aquatica 58mm Extension Ring for 9-18mm and 12-40mm part # AQ-30602 The 58mm Port Extension Ring for Select Olympus Micro Four Thirds Lenses from Aquatica, extends the length of the lens port, providing the extra space needed to accommodate the lens...

    $199.00
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  • Zen Extension Ring for Olympus PEN Housings

    Zen Extension Ring for Olympus PEN Housings

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

    SKU: ZEN-ER-EP-25

    Zen Extension Ring for Olympus PEN Housings Product Overview: Use the Zen Extension Ring to extend the Zen FP-100 Flat Port for use with the Olympus 60mm Macro lens. Perfect for housings like the PT-EP03L, PT-EP06 and PT-EP12 that do not fit the...

    $199.99
    Add to Cart
  • Nauticam Extension Ring 20mm with Lock

    Nauticam Extension Ring 20mm with Lock

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

    SKU: NAU-21120

    Nauticam 20mm Extension Ring with Lock (Type I)   Product Overview: Used with lenses like the Tokina 10-17mm fisheye lens, to place the dome in the proper position optically   Please see Nauticam Port Chart    

    $413.00
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  • XIT 404 XIT404 Aquatica Focus Knob

    XIT404 Aquatica Focus Knob

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

    SKU: XIT-KF0001AQ

    XIT404 Aquatica Focus Knob Part #: KF0001AQ Product Overview: An Aquatica Focus Knob gives you the perfect control you need when performing that critical focus. It also makes it easier to zoom with a wide angle lens. The Focus Knob presses onto your...

    $45.00
    Add to Cart
  • XIT 404 XIT404 Ikelite Aperature Knob

    XIT404 Ikelite Aperature Knob

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

    SKU: XIT-KAIKK

    XIT404 Ikelite Aperature Knob Part #: KAIKK Product Overview: An Ikelite Aperture Knob gives you the perfect control you need it. The Aperture Knob presses onto your existing knob, vinyl tape is included to ensure a snug fit. The focus knob is...

    $35.00
    Add to Cart
  • XIT 404 XIT404 Ikelite F-Stop knob

    XIT404 Ikelite F-Stop knob

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

    SKU: XIT-KFSIKK

    XIT404 Ikelite F-Stop knob Part# KFSIKK Product Overview: An Ikelite F-Stop Knob gives you the perfect control you need it. The F-Stop Knob presses onto your existing knob, vinyl tape is included to ensure a snug fit. The focus knob is constructed of...

    $35.00
    Add to Cart
  • Aquatica Extension Ring 63.5mm #48458

    Aquatica Extension Ring 63.5mm #48458

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

    SKU: AQ-48458

    Aquatica Extension Ring Part #48458 Product Overview: For use with Aquatica ports in order you utilize your favorite lens.  Constructed from anodized aluminum.      Please click here for Aquatica Port Chart. Please call the Bluewater Photo team at...

    $329.00
    Add to Cart
  • Aquatica Extension Ring 54.5mm with Lock

    Aquatica Extension Ring 54.5mm with Lock

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

    SKU: AQ-48457

    Aquatica Extension Ring 54.5mm with Lock Part #: AQ-48457 Product Overview: For use with Aquatica ports in order you utilize your favorite lens. This updated version includes a lock to prevent ports from accidentally coming unscrewed.   Please...

    $329.00
    Add to Cart
120 of 140 Items

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