The DLS binoculars are an inspiring introduction to the new Stokes Birding Binocular Series, an exciting line of premium, truly high end, quality binoculars that have all the features birders want. Conceived, designed, and endorsed by and for birders, the Stokes DLS binoculars DLS-1042 feature unparalleled optical performance thanks to the exclusive and extraordinary Total Optical Performance System. The TOP System combines advanced and sophisticated mechanical and optical components that deliver images of superior and stunning visual quality and clarity. Some of the incredible features that you will acquire when purchasing Vortex Stokes DLS 8x42mm Binoculars DLS-0842 are: compact frame and light weight (26.4 oz.); close focus (4.5 feet); excellent eye relief (18mm); superb depth of field; exceptional edge-to-edge image resolution brightness and contrast; optimum near-to-far focus travel (1.25 revolution); click stop diopter and a beautiful ergonomically designed and contoured textured body with deluxe comfort strap for comfortable day-long observing. The optical system of Vortex DLS 8 x 42 mm Binoculars DLS0842 incorporates the latest advances in technical innovation and engineering delivering the highest image contrast and resolution. Technical features of Vortex Stokes DLS 8x42 Binoculars DLS 842 include high reflectance ratio, 64-layer mirror-coated Bak4 deviation prisms coated with the latest generation of phase-corrected prism coatings. Optimal low light performance is achieved with twilight optimized multi-layered lens element coatings. The exclusive XHR (eXtremely High Resolution) fully multi-layered coatings of Vortex DLS 8x42 Binoculars deliver superior resolution and color fidelity. High-density prism glass and lens elements deliver exceptional image brightness and sharpness. These highly polished and precision shaped lens elements and prisms provide the observer with true "flat field" performance with the absolute minimum in spherical distortion. The precisely engineered and enhanced optical tube design eliminates annoying glare and image ghosting. All glass elements are manufactured with environmental friendly arsenic-free and lead-free optical glass elements. Rugged and solidly built prism and lens housings are able to withstand the most demanding conditions. Waterproof and fogproof construction of Vortex DLS Stokes is nitrogen purged and sealed to endure the harshest environments. All these extraordinary and desirable features are packed in a compact and lightweight frame of just 26.4 ounces and protected with a rubber exterior which offers a sure grip even with gloves and feel of high-grade leather. The carrying strap attachments is for maximum comfort when at rest or in use. The precisely designed optical system offers particularly clear and precise focusing from extremely close range to infinity. The ultra smooth focuser will finely tune the image from as near as 4.5 feet to infinity in just a little over one revolution of the focus wheel. Personal adjustments are made with an accurate, click stop diopter control, conveniently located adjacent to the right eyepiece. The accurately machined eyecups have multi-step positions for personal adjustments and offer comfortable full-field viewing with or without eyeglasses. The soft, contoured eyecups can be locked in place when fully extended or twisted down thru multiple settings to deliver up to 18mm of eye relief for wide, unobstructed vistas, even when wearing eyeglasses. Vortex DLS Binocular product was built to last for your absolute satisfaction, and is unconditionally guaranteed, backed by the remarkable Vortex VIP warranty. The Vortex VIP warranty assures users that, should the DLS ever need service no matter what the cause, the binoculars will be repaired or replaced absolutely free of charge. This worry-free and hassle-free warranty requires no cards to fill out and is completely transferable. The unlimited lifetime VIP warranty stands for the Very Important Promise to you, a Very Important Person.