Sea Frogs Extension Adapter Ring V7 for 6" & 8" Dome Ports

SKU: ER9037
$65.00 USD
$65.00 USD
$95.00 USD
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Subaquatic Symbiosis

Sea Frogs Extension Adapter Ring V7 for 6" & 8" Dome Ports

Sea Frogs 90mm Bayonet Mount| 37mm Extension Ring

The Sea Frogs Extension Adapter Ring V7 adds a 37mm (1.46'') extension for use with Sea Frogs 6" and 8" dome ports. It features the 90mm (3.54'') bayonet mount and fits most Sea Frogs underwater housings, excluding the A6xxx and RX1xx series models. If you already own a Sea Frogs dome port, there's no need to purchase a new one to fit a different lens—simply swap the extension ring for a perfect setup.

Please note: Extension rings are not suitable for flat ports and cannot be stacked.

Specifications

Compatible Lenses:

Sony Lenses:

  • Sony E 18-135mm F3.5-5.6 OSS (autofocus only) Working only at 18mm. Zoom Gear not Available

  • Sony FE 14mm F1.8 GM (autofocus only)

  • Sony FE 28-60 F4-5.6 (autofocus, manual zoom gear available)

  • Sony FE 28mm F2 + Fisheye Converter SEL057FEC (autofocus only)

  • Sony FE 28mm F2 + Ultra Wide Converter SEL075UWC (autofocus only)

  • Sony FE PZ 16-35mm F4 G (autofocus, manual zoom gear available) Zoom gears are unavailable for the Sony FX3/FX30 and ZV‑E1/ZV‑E10 models that rely on in‑camera zoom control.

Sigma Lenses:
Canon Lenses:

  • Canon EF 8-15mm F4L Fisheye USM + EF to FE-Mount Adapter (autofocus only) Zoom Gear not Available

Samyang Lenses:

  • Samyang AF 14mm F2.8 FE E-Mount (autofocus only)

Compatible Sea Frogs Underwater Camera Housings:

for Sony Cameras:

Bayonet:

  • Fits Sea Frogs housings with:

    90mm (3.54'') bayonet

Dimensions and Weight:

  • Extension Length:

    37mm (1.46'')

  • Port Opening Diameter:

    90mm (3.54'')

  • Length (including Bayonet):

    53mm (2.09'')

  • Weight:

    ±120gr (.26lb)

Materials:

  • Polycarbonate

Package Includes:

  • Sea Frogs Extension Adapter Ring V7 for 6" & 8" Dome Ports x1

  • Spare O-ring

  • Silicone grease 5ml

Disclaimer: Every effort has been made to ensure that the descriptions and images provided are accurate and up-to-date. However, occasional errors may occur, and product features, specifications, or appearances may change without notice. We recommend verifying any details that are critical to your purchasing decision.