It works "okay" but there are obvious improvements that could be made. Like instead of a screw on mount, use a bayonet mount so you can leave the adapter ring on the scope. Simple. Also, provide a lens cap for the adapter so if/when you do leave it on the scope, you can put a cap over the ocular lens. I emailed Outdoorsman's and they pretty much blew me off. Also wouldn't even tell me the thread pitch (gave me some "proprietary" bs) so I could search for a cap for the adapter. The adapter and phone case are well made, like most Outdoorsman's stuff, but also very overpriced - again, like most Outdoorsman's stuff. When I saw this product I thought it would be a lot better than the PhoneSkope system I was using. In some ways it is, but in other ways it isn't. I'd say it's a wash really. Not sure I'm glad I switched.