I can spend hours or days glassing units, but I wouldn't be able to do that without great optics. This past year I invested in Vortex Diamondback HD 15x56, after using Leupold BX-1 McKenzie 10x42 for 6 years.
Why Did I Make The Change?
People's eyes change over time. I noticed my eyes straining and struggling a ton while glassing 300+ yards. To the point I would grab my dad's Vortex 12X50s to make sure I didn't miss anything or check a specific color.
Vortex Diamondback HD 15x56
I went to Sportsman's Warehouse and looked through several different binos. When I'm testing and comparing binos I like to look at the picture they have set up 80-100 yards away in the store, try to read smaller signs in the shadows within the store, look at lighted and dark areas, and go outside and look at mountain ranges.
What I love about my Vortex Diamond HD 15x56 is the super clear image with perfect lighting, the adjustable eye cups, waterproof/fog proof (HUGE FACTOR), and the durability. They also came with a Vortex Bino Case & harness, neck strap, lens cloth, tripod adapter, and eyepiece covers. I use my Vortex Case Harness ALL THE TIME! Vortex offers a lifetime warranty for their products no matter what damage is done. From house fire, the bear ate them, my 3 year old threw them, I dropped them.... BOOM... COVERED!