60 mm macro with extensiontube + wetlense. Will it work?

Hello everybody

I am running a Canond 7dM2 and have a 60 mm macro for it and a Nauticam SMC.

The question is if it will work if i buy a 20 mm or 25mm extension tube, will i still be able to use the SMC on the setup, or will it stop working optimal when the extension is on?? or will it work better with a extender?

Looking foreward to some replies

Maybe you can use a cardboard tube as a mock up of the extension tube, hand hold it or tape it, and try it in a dark room. If it works, you might borrow an SMC or similar macro lens, test it in the same way. Let us know what happens. Good luck!