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Extension ring V.10 for SeaFrogs 6' and 8' Dome Ports.
This is a 61mm length adapter extension ring.
The extension ring can be used with all SeaFrogs dome ports to get the correct distance from the lens to the focus point.
Compatible with Sea Frogs camera housings listed above.
Port Opening Diameter: 89 mm
Length (including bayonet): 78 mm
Extension length: 61 mm
- Extension ring V.10
- Spare O-ring
- 5ml Silicone oil tube