Vortex viper 10x50 - Vortex Optics Viper HD 10x50 Binocular

Very clear, quality glass for the price. Side by side comparison with high end binos such as Swarovski, reveals the focus is not as fine. The more expensive binos can get a bit more clarity on the focus. My eyes must be close together because I have to put the lenses as close as they can get. The 50mm definitely decreases the ability to move the lenses together compared to the 42mm