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Extension Rings

150 of 150 Items
  • Isotta Extension Ring 40 mm -B120

    Isotta Extension Ring 40 mm -B120

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

    SKU: ISO-200

    Isotta Extension Ring 40 mm -B120   The Isotta Extension Ring ISO-200 features a 120mm bayonet and extends the port by 40mm. The extension ring is built from black anodized anticorodal aluminum which makes it durable and robust. In addition, it also...

    $202.40
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  • Isotta Extension Ring 60 mm -B120

    Isotta Extension Ring 60 mm -B120

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

    SKU: ISO-218

    Isotta Extension Ring 60 mm -B120   The Isotta Extension Ring ISO-218 features a 120mm bayonet and extends the port by 60mm. The extension ring is built from black anodized anticorodal aluminum which makes it durable and robust. In addition, it also...

    $227.70
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  • 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 (Type I) * This item is non-returnable, non-refundable, non-cancellable, and may be subject to extended lead times as it is manufactured on demand. We always do our best to meet trip deadlines so please advise us if you...

    $186.00
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  • Sale
    Ikelite USED: Ikelite Mirrorless Lens Extension - 1.2 Inch 5516.65

    USED: Ikelite Mirrorless Lens Extension - 1.2 Inch 5516.65

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

    SKU: IKE-5516.65-USED-2

    USED: Ikelite Mirrorless Lens Extension - 1.2 Inch 5516.65   SOLD Part # IKE-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       ...

    $140.00
    $200.00
  • Ikelite Focus Extension for Modular Port 5510.75

    Ikelite Focus Extension for Modular Port 5510.75

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

    SKU: IKE-5510.75

    Ikelite Focus Extension for Modular Port Discontinued Part # 5510.75 Product Overview: Special extension to be used with Nikon 105mm VR Macro and Canon 100mm USM Macro lenses.  Manual focus is easily adjusted with a knob on the side of the...

    $174.95
  • Ikelite Port Body 5510.22

    Ikelite Port Body 5510.22

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

    SKU: IKE-5510.22

    Ikelite Port Body 5510.22 Part #: Ike-5510.22 Product Overview: This Ikelite Port Body is used with the Ikelite 8" dome port (5510.45) for Ikelite DSLR housings. This mount is for select wide angle lenses, including the Tokina 11-16mm, Canon 10-22mm,...

    $250.00
150 of 150 Items

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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