All new Swarovski SLC HD Binoculars High-Performance HD Optics Fluoride-containing HD lenses minimize the color fringing that is unavoidable with conventional types of glass. As a result, the new SLC 42 HD provides high contrast images in natural colors with razor-sharp outlines : exceptionally high quality crystal-clear images that brings you even closer to the true beauty and fascinating details to be found in nature. New Focusing Mechanism - From Near to Far in an Instant The new focusing wheel with its unique combination of hard and soft components guarantees stability and grip, whatever the weather. The focusing mechanism is particularly smooth, allowing it to be operated easily and precisely in all situations, even when wearing gloves. Just a single turn sets the SLC HD to all hunting distances, enabling you to quickly obtain a sharp image for reliably identifying your game. Whether in cold, twilight or during a safari under the burning desert sun - the short, precise movements of the new focusing mechanism provides crystal-clear images at any distance. The new focusing mechanism enables a correction for impaired vision of at least 6 dpt. It also offers a built-in diopter adjustment of +/- 4 dpt to compensate for different visual acuity in each eye. This enables the binoculars to be adjusted to individual levels of visual acuity when used without eyeglasses. Compact and Rugged Magnesium houseing - light and rugged. Every ounce counts, especially during long periods of observation or on arduous expeditions. An innovative magnesium housing makes a significant contribution to keeping weight as low as possible, without impacting on ruggedness oroptical qualities. The result: the new SLC 42 HD weighs only around 28 oz. - ideal for light backpack for pleasant, fatigue-free observation * New HD Optics * New Focusing mechanism * Magnesium body * Close focus to 6 feet * Light weight