Focus on this

[Astroglide65]

Hello everybody,
This afternoon sometime I'll be receiving my new SW Evostar 72 ED, my first refractor. It's shown with a 2" Star Diagonal in the pictures, if not no big deal really. But that will leave a big gap in the light path. I'll be using my Sony a6000 and my ZWOASI224MC camera's and have also ordered this:

I'm planning on adding a Field Flattener in the near future. I'm using a 2" snout on the T-adapter also the ZWO. I keep seeing the 55mm distance in the light path and I'm worried that may not work out because the Adapter short length is 79 mm ( see the pictures ). Anybody know of an article with pictures that explains this?

Thanks,
Dano

[helicon]

Good luck with the new scope. Looking forward to the photos.