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The instructions are thorough and include descriptions of the design benefits and of the accessories included such as the removeable red filters that come attached over the eyepieces. At first I thought those were a fixed part of the binoculars but as you see in the photo, they come off and they have a purpose. I did my evaluation without them in place.
The brightness and clarity of the image is very good. I never felt any eye strain to get a better view. The range of turns of the main focus wheel is good in that I was able to get the focus of the left eye finely tuned. Then matching the focus on the right eye was done in seconds.
The included adapter to place a smartphone lens up to the eyepiece will remain a piece of curiosity for me personally. From the various tries I gave it, the resulting image and the effort to try and keep the binoculars steady just weren't worth it for me. I am heavily invested in video and photography gear so I already have many options to get full frame images from equivalent distances.
I can see myself using these binoculars on days I go out to watch powersports where the action takes place off shore and at tracks so I can scout what's happening without needing to move all of my camera gear closer unless it's something I want to record. Also I record wildlife and these will let me spot potential subjects with clarity from further away without disturbing them unnecessarily.