Sea Frogs 90mm Bayonet Mount| 37mm Extension Ring
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The Sea Frogs Extension Adapter Ring V.7 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.
Adapter EF to FE-Mount CONVERTER + EF 8-15mm F4L Fisheye USM (autofocus only)
Samyang AF 14mm F2.8 FE E-Mount (autofocus only)
Sigma 18-50mm F2.8 DC DN E-Mount (autofocus, manual zoom gear available)
Sony E 18-135mm F3.5-5.6 OSS (autofocus only)
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)
Fits Sea Frogs housings with:
90mm (3.54'') bayonet
Extension Length:
37mm (1.46'')
Port Opening Diameter:
90mm (3.54'')
Length (including Bayonet):
53mm (2.09'')
Weight:
±120gr (.26lb)
Polycarbonate
Sea Frogs Extension Adapter Ring V.7 for 6" & 8" Dome Ports x1
Spare O-ring
Silicone grease 5ml
For all orders exceeding a value of 100USD shipping is offered for free.
Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.
Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.