I really can't evaluate this product as it was too large to tighten on my objective lens, which was no fault on anyone buy my own. I contact Outdoorsman and they helped me swapit out with a small that works perfectly. If there was one thing I would change, it would be the tension in the ajustment ring. I wish it was more of a friction slip, so once it was adjsuted it would grip the scope or bino objective lens better and hold on better. When moving your binos or gun, you need to remove the phone and adapter or it will come loose and fall off. With jsut a little more tension, it would hold in place. Mine was loose enough, I had to hold the phone with my left hand to hit the record button or I would move the phone. I can't take pictures without hold ign the phone as the contact of my finger on the phone screen moves the assembly.