Originally i had an ND20 and bought a DP-FE2 dome. A few years ago I upgraded to an ND300S housing and my dome still fits. This implies you can mount a MK2 dome on a Mk3 housing (I assume the ND300S is Mk3?)
I am now thinking of upgrading again to a ND500 which comes either Mk3 or 4 . However I have been told that my DP-FE2 will not fit this housing which seem odd as surely it will fit on the Mk3 version. Or is there something else about the housing that means it wont fit?
I didn't find the right solution from the Internet.