The new Oberwerk 25x100mm Deluxe is ideal for serious binocular astronomy or long-range terrestrial viewing on a budget. Available in your choice of (CF (center-focus) or IF (individual focus). The CF model is the largest and most-powerful binocular on the market that has center-focus, which is a big advantage when viewing a moving target. New prism mounting system uses precision floating plates (as found on our Ultra Series), which do a better job of maintaining alignment than common prism-tilt systems. Features fully broadband multi-coated optics (all air-to-glass surfaces, including prisms), rubber-armored all-metal waterproof construction (nitrogen filled), braced and hinged objective tubes, and built-in mount. This binocular has a 2.4° field of view, with very good sharpness across the entire field. The CF eyepieces have twist-up eyecups, the IF has fold-down eyecups- both work well with glasses (eye relief is a comfortable 18mm). Includes objective covers, ocular caps, and our exclusive Heavy-Duty aluminum-frame case!