All in all, these are decent binoculars. The picture is bright and clear. Even at night it looks roughly what you see with the naked eye. It doesn't lose that much light. The focus wheel is smooth-running and has sufficient stability when turning. It is neither too loose nor too difficult to adjust. However, diopters don't work that well. If you turn it all the way to + or all the way to -, it won't adjust as much. It's not like my cameras, which it's safe to say look a lot sharper or blurry after adjustment. In addition, when you turn the dial, you can hear sounds and feel something when you turn it. It's not as smooth as the focus wheel. Another problem is that if you move your eyes closer to the back of the binoculars, the image from the left and right lenses will not match exactly. I tried rotating the rear element of the lens to the far position and even then it wasn't enough. You have to remove your eyes from the binoculars and only then the picture will be perfectly synchronized. I have Pentax binoculars and they work great without having to move my eyes further away from the binoculars to see the image properly. I think they need to redesign it to make the back elements stretch further. The problem with not being able to focus your eyes directly on the eyecups of binoculars is that with light coming from behind you can see flare on the rear lens elements. It comes with a lanyard and a slim pouch for the binoculars. It also comes with an adapter to connect your smartphone to the rear element to use it as a zoom lens. However, the mobile phone holder cannot be opened very far. I couldn't try it with my phone as it didn't fit. So if you have a big phone, it definitely won't fit. The grip of the phone is also a bit plastic. So I'm not sure how long it will last if you have to constantly tug on it to get it to the size of your phone. All in all, these are good binoculars, but they do have some drawbacks.
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