This is a handy adapter especially when using 2" focal reducers which are quite common. My main gripe would be the thumb screws for securing the camera or eyepiece. I expect eyepieces would not pose a problem but if using a camera with say a filter wheel and attempting to butt it us against the adapter to ensure squareness, there is little room for fingers to get purchase on the screws. I cut a slot in each screw so that I could use a screwdriver to tighten them securely as they would be the only thing holding the camera assembly. It would be preferable if they were supplied in that fashion.