I'm thinking of buying a Sea&Sea DX-5D housing and I've seen the ports that I need in the Sea&Sea web:
- for the Sigma 15 mm and the Canon 17-40L the port is the NX Fisheye Dome Port (56401)
- for the Canon 100mm f2.8 macro USM, there are two options: NX Custom Flat Port or DX Macro Port 50 with DX Macro Port Base
I don't like those ports for the 100mm because are very big and no possibility to use wet close lense like woody's diopter.
Somebody have tried the following option?:
NX Compact Macro Port Base ( 56201)" and "Compact Macro Port 52 (56241)"
Are there another flat ports for de 100mm in DX-5D housing?