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Delta Optical Extreme 15x70 binocular is one of the biggest on the market. 15x magnification is perfect for long-distance observations and 70 mm lenses draws in plenty of light even during nighttime. This model is thus suitable for hunting, military, law enforcement personnel and also for astronomy observations of not only stars and planets but other celestial phenomenon such as comets and clusters. These binoculars are built with extremely durable materials and modern optical innovations such as FMC anti-reflective coatings that eliminates major distortions and together with incredible brightness and colors, gives you great resolution. With this model, your eyes are open to an amazing scenery with incredible details. They have individual focusing mechanism, not only to make them more impervious, but also because you can only make proper adjustments once and afterwards the binoculars focus for themselves. Eyecups have one position but large exit pupil distance and soft tethered rubber helps to make a proper eye-relief even for eye glass wearers and helps you to cut the light coming from the sides. Due to its heavy construction and power you can mount them to a tripod adaptable screw.
The Delta Optical Extreme series offers the biggest and one of the most powerful binoculars with Porro prism system on the market. Large variety of binoculars in this series are suitable for marine use, hunting, military, navy, law enforcement and astronomy applications. Even though these binoculars use Porro prism system, they are upgraded with modern optical innovations. The construction is wrapped in rubber armor to protect them against different impacts and rugged surface provides you with a non-slip grip although it’s recommended mounting them to a tripod, since they are much heavier. Optically the Extreme series offers incredibly high light transmission rate with the help of FCM multi-coated system on ED glass surfaces with razor sharp images free of major distortions from edge to edge. These binoculars are also waterproof and fog-proof due to nitrogen gas purging and tight seals and will not get damaged even when used during harsh weather conditions and can operate in temperature range from -40 to 70 °C. To make proper focus adjustments, the Extreme series is equipped with individual focusing mechanism, that also helps to make them more impervious. Eyepieces have only one position but longer exit pupil distance helps to give a proper eye-relief even for eye glass wearers.
