I have a Aquatica housing. I would like to attach Sea & Sea's 240 Large megadome.
I am planning to buy the Aquatica to Sea & Sea Port adapter. The store recommended me to use Aquatica's 39.5mm extension ring for the Canon 17-40mm on the top of the adaptor. The problem is that the 39.5mm ring is not available to order currently. I have looked around and I couldn't find it.
Is there another way to fit the Sea & Sea dome port on an Aquatica housing? Should I use Sea & Sea's extension rings?
Anybody ever faced this problem?
Thanks!