New to the Forum I take my opportunity to solve my "Problem":
My rig is the nauticam-housing for the Canon 550D and the "insect eye port" C60M130 for the Canon 60mm macrolens.
Now I like to use this port with the Canon 100mm macro USM (non L, non-IS).
So the question is:
which portextension (length) do I need for this Combo and the same question when I like to use the 100mm with the kenko 1,4 teleplus 300 DGX - convertor?
The port-Charts at the nauticam-hp do not show this Combo, but I'm sure they will work - just with which port-extensions???
I hope sombody can help...
Best regards, Tom