Bought these to replace a pair of Bushnell 8x32 which I beat to death over eight seasons. Always had an issue w/ low light clarity and focus. Finally just said to he** with'm. Enter the Leupold BX4 Pro Guide HD 8x32's. The clarity is on par with Zeiss at nearly half the price. Focusing is easily set and once set stays put w/the locking center diopter adjuster. These are excellent in low light. Lightweight and compact make these great for treestand hunting, spot-n-stalk or just checking things out.