The Leica Trinovid 10x42 HDs are a rugged pair of binoculars that balance high-end optical performance with impressive portability. They feature P40 phase-correction prism coatings to enhance light transmission, the ever-reliable HighLux system to limit internal light diffraction, and Leica's effective HDC coating to ensure high-contrast clarity and colour fidelity throughout. You are given a truly immersive observational experience when you raise these binoculars to your eyes, with a clear, crisp, and wide 61° apparent angle of view. They also cater well to both those with or without eyewear, with twist-up four-position click-stop rubber eyecups, 15mm eye relief, and ±4 right-eye dioptric correction. For subjects that stand, sit, or fly a little closer to the lens - these Trinovid's are equipped with an immensely short 1.6m minimum focal distance. This is great for observing small birds, butterflies, bugs, and other insects.