Hawke tackle 30 scope and eagle vision cam adapter?

Well I just got my Eagle vision adapter and when I put it on the scope I'm having issues with focusing to the cross hairs. I have to unscrew the ocular focus on the back of the scope In order to focus on cross hairs when the camera is zoomed in. The problem I'm having is there's a wiggle between the focus and the scope. Does anyone else have this problem it seems to me that there's nothing to do about this. I feel like this could effect accuracy quite a bit. I don't have a gun right now Ernest has one of my guns and the impact hasn't come in yet. But I can put the camera on the scope and you can wiggle the camera and the cross hairs will move. Now it's not like a really bad wiggle but it's there.