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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!

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    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 ...

    MSRP: $200.00
    Was: $200.00
    Now: $199.95
  • 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...

    MSRP: $179.00
    Was: $179.00
    Now: $152.15
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    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...

    MSRP: $169.00
    Was: $169.00
    Now: $143.65
  • Sale
    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...

    MSRP: $179.00
    Was: $179.00
    Now: $152.15
  • 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
  • Nauticam N120 70mm Extension Ring with Zoom and Focus Gear Support

    Nauticam N120 70mm Extension Ring with Zoom and Focus Gear Support

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

    SKU: NAU-21270

    Nauticam N120 70mm Extension Ring with Zoom and Focus Gear Support Part #: Nau-21270 Product Overview: Works with the focus gear Nauticam 19542 C1635II-F for Canon 16-35mm F2.8 II lens Works with the Canon 16-35mm II zoom gear Works with...

    $704.00
  • 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 Part #: Nau-21120 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 We dive with our products all the...

    $441.00
  • Nauticam N120 10mm Extension Ring Nau-21110

    Nauticam N120 10mm Extension Ring (Nau-21110)

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

    SKU: NAU-21110

    Nauticam N120 10mm Extension Ring Part #: Nau-21110 Product Overview: Extension ring is recommended to be used with the following lenses. Sigma 15mm fisheye lens and 4 inch acylic dome port Canon 15mm fisheye and 8 inch port Canon 15mm...

    $186.00
  • 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
  • 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
  • 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
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    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...

    MSRP: $310.00
    Was: $310.00
    Now: $263.50
  • Sale
    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...

    MSRP: $310.00
    Was: $310.00
    Now: $263.50
  • Sale
    Aquatica Extension Ring 16.5mm #48456

    Aquatica Extension Ring 16.5mm #48456

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

    SKU: AQ-48456

    Aquatica Extension Ring 16.5mm Part #: AQ-48456 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...

    MSRP: $249.00
    Was: $249.00
    Now: $211.65
  • Sale
    Aquatica Extension Ring 28.5mm with Lock

    Aquatica Extension Ring 28.5mm with Lock

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

    SKU: AQ-48453--2

    Aquatica Extension Ring 28.5mm with Lock Part #: AQ-48453 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...

    MSRP: $249.00
    Was: $249.00
    Now: $211.65
  • Nauticam N85 Mini Extension Ring 30 Nau-36630

    Nauticam N85 Mini Extension Ring 30 (Nau-36630)

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

    SKU: NAU-36630

    Nauticam N85 Mini Extension Ring 30 Part #: Nau-36630 Product Overview: This extension ring allows you to use you Olympus Zuiko 60mm macro lens with your current Nauticam Macro Port 35. Compatible with N85 port system   Please see Nauticam Port Chart...

    $310.00
  • Nauticam Mini Extension Ring 20

    Nauticam Mini Extension Ring 20

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

    SKU: NAU-36620

    Nauticam Mini Extension Ring 20 Part #: Nau-36620 Product Overview: This extension ring allows you to use you Olympus Zuiko 60mm macro lens with your current Nauticam Macro Port 45.      Please see Nauticam Port Chart We dive with our products all...

    $280.00
  • Ikelite Port Body 5510.16

    Ikelite Port Body 5510.16

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

    SKU: IKE-5510.16

    Ikelite Port Body Part #: Ike-5510.16 Product Overview: The Ikelite Port Body 5510.16 is the standard zoom port body and will accomodate lenses up to 3.4 inches long (with a flat port) or 3.5 inches long (with a dome port). An appropriate Port Body...

    $225.00
  • Ikelite Port Body 5510.28

    Ikelite Port Body 5510.28

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

    SKU: IKE-5510.28

    Ikelite Port Body Part #: Ike-5510.28 Product Overview: The Ikelite Port Body 5510.28 will accomodate the Nikon 18-135mm lens, as well as lenses up to 5 inches long (with a flat port) or 5.1 inches long (with a dome port). An appropriate Port Body is...

    $275.00
  • Nauticam N120 50mm Extension Ring

    Nauticam N120 50mm Extension Ring

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

    SKU: NAU-21150

    Nauticam N120 50mm Extension Ring  Part #: Nau-21150 Product Overview: This is the Nauticam 50mm extension ring for the N120 port system   Please see Nauticam Port Chart We dive with our products all the time. Please call the Bluewater Photo team at...

    $478.00
  • Nauticam N120 70mm Extension Ring Nau-21170

    Nauticam N120 70mm Extension Ring Nau-21170

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

    SKU: NAU-21170

    Nauticam N120 70mm Extension Ring Part #: Nau-21170 Product Overview: This is the Nauticam 70mm extension ring for the N120 port system.   Used for these lenses (among others) Sigma 17-70mm Nikon 12-24mm Nikon 14-24mm Nikon 16-35mm ...

    $507.00
  • Nauticam N120 60mm Extension Ring Nau-21160

    Nauticam N120 60mm Extension Ring Nau-21160

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

    SKU: NAU-21160

    Nauticam N120 60mm Extension Ring  Part #: Nau-21160 Product Overview: This is the Nauticam 60mm extension ring for the N120 port system   Please see Nauticam Port Chart We dive with our products all the time. Please call the Bluewater Photo team at...

    $497.00
  • Precision Sea and Sea to Ikelite Port Adapter

    Precision Sea & Sea to Ikelite Port Adapter

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

    SKU: PRE-SS-I-PA

    Precision Sea & Sea to Ikelite Port Adapter The Precision Sea & Sea Port Adapter allows you to mount your Ikelite style Precision dome to your Sea & Sea DSLR housing.   Have any questions?  Call us at 310-633-5052 or email us...

    $229.00

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