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643 EUR
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price without VAT: 523 EUR
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The Oberwerk 25×100 ED Ultra (SKU: 25x100ED-ULTRA) is the largest and most powerful binocular in the Ultra Series, offering the highest image quality available before moving into the XL binocular telescope line. Its ED FK-61 low-dispersion objectives greatly reduce chromatic aberration, delivering crisp, bright and high-contrast images even at high 25× magnification.
The wide 2.63° true field of view (66° AFOV) remains sharp across the entire field, making this binocular ideal for deep-sky observing, rich star fields, nebulae, open clusters and dramatic wide-angle lunar views. Optically, it rivals the performance of the BT-100XL-ED with 22 mm eyepieces (25×) at roughly one-third of the cost.
The construction is fully rubber-armored metal, waterproof, and built with floating prism mounts and reinforced hinged objective housings. Individual focus (IF) on each eyepiece ensures precise adjustment. All air-to-glass surfaces, including the prisms, are fully broadband multi-coated for maximum light transmission.
Due to its effective eye relief of 10–17 mm, this model is not recommended for eyeglass wearers; however, individual focusing compensates well for common vision differences.
• powerful 25×100 ED binocular with FK-61 objectives
• wide true field of 2.63° (66° AFOV)
• fully broadband multi-coated optics, including prisms
• rugged rubber-armored metal construction
• waterproof and shock-resistant
• individual focus (IF) eyepieces
• floating prism assembly for increased durability
• integrated tripod mounting bar
• heavy-duty aluminium carry case included
• magnification: 25×
• objective diameter: 100 mm
• true field of view: 2.63°
• apparent field of view: 66°
• exit pupil: 4 mm
• eye relief: 10–17 mm
• minimum focus distance: 45–75 m
• interpupillary distance: 57–75 mm
• weight: 4.5 kg
• dimensions: 46 × 21 × 10 cm
• Oberwerk 25×100 ED Ultra binocular
• objective and eyepiece covers
• heavy-duty aluminium case
• integrated tripod mounting bar
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