Vixen BT-81S-A Astronomy Binoculars

With a new optical design and extremely high resolution, the Vixen BT126SS binoculars provide a considerably more detailed view for astronomical observations. The BT126SS binoculars are characterized by two 126 mm achromatic object lenses and provide 300% more light than the naked eye. 45° angled eyepiece holders offer comfortable, fatigue-free observation. Each eyepiece holder has capacity for 1.25’’ eyepieces. The exchangeable eyepieces allow you to change magnification quickly for the various objects of observation. FEATURES Objective lenses: 126 mm 2-lens achromat Focal length: 625 mm Resolution and limiting magnitude: 0.93 arc seconds, 12.3 light-gathering power 324x Dimensions and weight: 630 x 360 x 200 mm; 10.5 kg Adapter and connections: 31.7 mm clamp WHAT’S INCLUDED Binoculars Carry handle Viewfinder base

Giant binoculars for observing the starry sky, nature and landscape. Observe the beauty of the starry sky at night and distant objects in nature during the day. Globular star clusters, glowing gas nebulae, the moon with its craters and even planets can be observed wonderfully on a clear night. But also all other distant things in nature and landscape, even ships and airplanes can be seen in detail. With the all-round binoculars of the EXPLORE SCIENTIFIC BT series, you can get up very close. Thanks to the large, light-gathering lenses and the professional coatings on all lens surfaces, these binoculars produce bright and brilliant images even at night and at twilight, providing a special viewing pleasure. The comfortable 45 degree viewing angle allows fatigue-free use even when the binoculars are tilted strongly.  Large binoculars can also be called a double refractor telescope One complete lens telescope with the full light gathering power is available per eye. Experience a whole new dimension of observing. Objects are reproduced almost vividly in these binoculars and observing with both eyes is basically very relaxed. Last but not least, this comfortable way of observation increases the recognition of the finest details and effectively prevents rapid eye fatigue. Extremely robust binoculars with magnesium housing, sealed and filled with nitrogen  The BT series binoculars are designed for tough outdoor use. The IPX6 sealed and nitrogen-filled design effectively prevents fogging of the internal optics even under difficult weather conditions. The very light magnesium housing saves weight and makes it easy to handle. Two EXPLORE SCIENTIFIC 20mm eyepieces of the 62 degree LER series already included. EXPLORE SCIENTIFIC is an established manufacturer of extremely high-quality eyepieces in the astronomy scene. An optical system is only as good as its weakest component. Therefore we have decided to deliver these giant binoculars with a pair of quality eyepieces of the 62 degree LER series. With an apparent field of view of 62 degrees and a focal length of 20mm, the BT-100 binoculars produce a 28x magnification. Thus these wide angle eyepieces offer a very good overview (field of view 2,3 degree) at moderate magnification. The large interpupillary distance of these LER (long eye relief) eyepieces of 15mm and soft silicone eyecups, which can be turned inside out, also guarantee a comfortable and relaxed view. For astronomy, a flat and sharp image field is advantageous and offers a particularly impressive viewing experience even during the day. Due to the waterproof design and the argon filling, these eyepieces are absolutely durable and easy to clean. Interchangeable eyepieces with 1.25 inch / 31.7mm plug-in diameter Adjust the magnification and field of view to your individual needs and choose from a wide range of available eyepieces. All eyepiece types with a plug-in diameter of 1.25 inch / 31.7mm can be used with the binoculars of the BT series. Especially recommended are EXPLORE SCIENTIFIC eyepieces of the 62 and 82 degree series with focal lengths from 8 to 26mm (see item No. 02188xx and 02196xx). The magnification can be varied from 21x to 70x (focal length binoculars : focal length eyepiece = magnification). The eyepieces are held in the binoculars by a precise brass compression ring clamp and guarantee a tilt free position.  Use of color and nebula filters for astronomical observations Increase the contrast and visibility of objects and details by screwing the corresponding filters directly into the thread of the eyepiece sleeves. The use of color and nebula filters must of course always be done in pairs. Suitable are all EXPLORE SCIENTIFIC screw filters with 1.25inch / 31.7mm diameter (see item No. 03102xx)  Comfortable 45 degree view and helical single focus The 45-degree viewing angle allows a relaxed observation position even when the binoculars are tilted strongly. Also the individual interpupillary distance can be adjusted in a range from 54 to 76mm. With the fine helical individual focusing, precise focusing is achieved effortlessly. Extendable dew caps The integrated dew caps can be removed in high humidity and cold conditions. This avoids fogging of the outer objective lenses and effectively shields additional control light coming in from the side. Integrated carrying handle A metal carrying handle located at the center of gravity facilitates transport and ensures a secure hold during tripod assembly. Suitable tripods and tripod connectionWhen using these large binoculars, a sturdy photo tripod with an appropriate load capacity is highly recommended. The connection is made via two 1/4 inch or one 3/8 inch threaded holes (standard photo tripod thread) in the tripod adapter of the binoculars. The ideal solution is to use the optional availlable EXPLORE SCIENTIFIC U-Mount with field tripod (item No. 0114300). This is specially designed for the large binoculars of the BT series and carries these devices absolutely safely. The excellent mechanism with adjustable friction in both axes allows easy moving and tracking. The binocular position is kept stable depending on the adjusted friction intensity. Vibrations are reduced to a minimum by the massive construction of the U-Mount and the large stainless steel tripod. Even at high magnification there are no vibrations and the finest details can be observed.FEATURES Large binoculars for observing the starry sky, nature and landscape Observe globular star clusters, glowing gas nebulae, the moon with its craters and even planets Also wild animals, ships and airplanes can be seen in detail Highly light gathering lenses produce a bright and high-contrast image All-round binoculars, but especially suitable in twilight and at night The comfortable 45 degree viewing angle allows fatigue-free use One complete lens telescope with the full light gathering power is available per eye Extremely robust binoculars with magnesium housing, sealed and filled with nitrogen Two EXPLORE SCIENTIFIC 20mm eyepieces of the 62 degree LER series already included 28x magnification and an apparent field of view of 62 degrees, true visible field of 2,3 degreesLarge interpupillary distance of 15mm to the eyepiece lens for comfortable viewing Eyepieces interchangeable and with standardized plug-in diameter of 1.25 inch / 31.7mm The magnification can be adjusted with optional eyepieces from 21x to 70x Precise brass eyepiece compression ring clamps for tilt-free fitColor and nebula filters can be used for astronomical observations Extendable dew caps prevent fogging of the outer objective lenses and stray light Integrated carrying handle facilitates transport and mounting on the tripod Tripod connection via two 1/4 inch or one 3/8 inch threaded holes (standard photo tripod thread) Tripod recommendation: EXPLORE SCIENTIFIC U-mount with field tripod (Art.No. 0114300) Objective type: Air spaced achromatic lens (2 elements/ 1 group) Coating: full multilayer coating on all optical surfaces Aperture, focal length and aperture ratio: 100mm / 550mm / F=5.5 Sealed to IPX6 standard and nitrogen filled: yes / yes Close focus distance: 25 meters Eyepiece mount diameter: 1.25'' / 31.7mm Adjustable interpupillary distance: 54 to 76 mm Helical single focus: yes BAK-4 prism system for a bright and high-contrast imageDimensions and weight of binoculars: 520 x 270 x 155mm, 6.8kg Housing color of binoculars:  white SCOPE OF DELIVERY Giant binoculars with carrying handle (without tripod)Eyepieces ES 20mm 62 degrees LER Series (2pcs)Precisely fitting foam insert for transport Dust covers for objectives and eyepiece sockets Instruction manual

With the BRESSER 7x50 Nautic Monocular with Compass, you’ll always stay on the right course. Whether you’re out sailing, competing in a regatta or enjoying a relaxed day on the water, this compact monocular with compass is purpose-built for life at sea. It delivers 7x magnification, giving you a clear view of distant subjects – ideal for the marine environment. The generous 50 mm objective lens gathers plenty of light, ensuring bright, crisp images even at dusk or in overcast conditions. And thanks to its compact design, the Nautic is the perfect companion to keep close at hand on deck. Easy navigation – with compass and reticle Not sure which way to head? The compass helps you reliably find your bearings. The integrated reticle also allows you to calculate distances and object sizes with precision – a real advantage when navigating accurately. Plus, this marine monocular offers a wide field of view of 107 m at 1,000 m, so you can effortlessly keep track of your surroundings and spot boats, shorelines and seabirds in good time. Quality optics built for the elements Premium details make all the difference: the high-grade BaK-4 glass delivers excellent resolution for consistently sharp, detailed views. The fully coated lenses boost light transmission and minimise reflections. And since conditions on the water can change in an instant, the waterproof housing keeps out spray and rain with ease. The nitrogen filling prevents internal fogging, ensuring a clear image even when temperatures fluctuate. Comfortable viewing – with or without glasses Wear glasses? No problem. Simply fold down the rubber eyecup to achieve the correct eye relief. The +/- 5 dioptre adjustment ensures you can always fine-tune the focus to suit your eyesight perfectly. And with its textured rubber armour and practical wrist strap, the monocular stays safely in hand, even in choppy seas. Set sail on your next adventure with the BRESSER 7x50 Nautic Monocular with Compass! FEATURES High-quality roof-prism monocular for sailing and water sports Compass and reticle Premium BaK-4 prisms Fully coated lenses Waterproof design Nitrogen-filled to prevent internal fogging Dioptre adjustment: +/- 5 Fold-down rubber eyecup for spectacle wearers SCOPE OF DELIVERY Monocular  Pouch Wrist strap Cleaning cloth Instruction manual