HF2-BT81S-A Complete binocular telescope set

Product Highlights

Vixen large binoculars complete set with 81-mm binocular, tripod, mount, and two eyepieces for observing the starry sky, nature, and landscape

  • Complete set with mount and eyepieces
  • Exchangeable eyepieces 81 mm objective lenses
  • Resolution and limiting magnitude: 1.43 arc seconds; 11.3
  • Razor-sharp and contrast-rich image
  • Weight of optics: 4.1 kg
  • Total weight: 14.1 kg

£1,916.00*

Available

Product number: X000163
GTIN/EAN: 4955295380664
Product information "HF2-BT81S-A Complete binocular telescope set"
Take a look through the new Vixen BT-81S-A binocular telescope.
This model is ideal for observing gas nebula, star clusters and comets.
The magnesium fluoride coating reduces chromatic aberration and the large aperture of 81 mm ensures a razor-sharp, contrast-rich image.
Weighing just 4.1 kg, the BT-81S-A binocular telescope is very transportable.

FEATURES
  • Objective lenses: 81 mm 2-lens achromat, multi-coated
  • Focal length: 480 mm (f5.9)
  • Resolution and limiting magnitude: 1.43 arc seconds; 11.3
  • Light-gathering power: 134x
  • Dimensions and weight: 480 x 190 x 155 mm; 14.0 kg
  • Adapter and connections: 31.7 mm clamp

WHAT’S INCLUDED
  • HF2 fork mount
  • SXG-HAL130 tripod
  • Carry handle
  • finder shoe
  • Dew caps
  • 2 SLV 20 mm eyepieces
  • Swing bracket binocular cradle
Body material: Aluminium
Colour: white
Colour of coating: blue
Dust protection caps: Dust protection caps for front lens and eyepiece holder
Focusing system: 1.25" Helical focuser
Material: Aluminium
Optical design: Abbe-König, Achromatic Refractor
Product Family [Telescopes]: Refractor telescope
Type [Binoculars]: Giant Binoculars
Type of coating: Multi coated

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Accessories

Vixen SLV 50° Eyepiece 25mm (1.25'')
The Vixen SLV eyepieces use high-quality lanthanum glass to deliver remarkably clear and high-contrast star images right up to the edge of the field of view.All lenses are fully multi-coated for high light transmission.Twist up eyecups allow the user to set observing height to their own comfortable specification.  20mm eye relief means that even those who have to wear glasses to observe are able to see right to the edge of the field of view.PROPERTIESVery high sharpness and contrast across the entire field of viewComfortable eye relief of 20mmalmost no chromatism visible due to lanthanum glass31.7 mm receptacle connectionEyecup that can be turned down for glasses wearersWeight: 151gWHAT'S INCLUDEDVixen SLV 50 ° eyepieceDust caps

£133.00*
Vixen SLV 50° Eyepiece 15mm (1.25'')
​The Vixen SLV series are the modern take on the classic Vixen Lanthanum eyepieces. These eyepieces were legendary for their generous eye relief and precise nature, making them a firm favourite with planetary, lunar and double star observers. This 15mm SLV is an excellent eyepiece for medium power for most telescopes, an ideal general purpose eyepiece and provides excellent comfort with long eye relief. The SLV Series of Vixen Eyepieces feature a hexagonal shaped eyepiece body, long 20mm eye relief, and twist up click stop eyecup for adjusting to the most comfortable viewing. The SLV eyepieces feature high grade lanthanum glass, and deliver remarkably clear and high contrast star images to the edge of the viewing circle. The lenses are fully multicoated for high light transmission.Size 31.7mm/1.25"Apparent FOV 50°Eye relief 20mmWeight 168g (5.92oz)

£133.00*
Vixen SLV 50° Eyepiece 12mm (1.25'')
​The Vixen SLV series are the modern take on the classic Vixen Lanthanum eyepieces. These eyepieces were legendary for their generous eye relief and precise nature, making them a firm favourite with planetary, lunar and double star observers. This 12mm is an excellent eyepiece for medium to higher power on most telescopes, an ideal general purpose eyepiece and major improvement over standard eyepieces. The SLV Series of Vixen Eyepieces feature a hexagonal shaped eyepiece body, long 20mm eye relief, and twist up click stop eyecup for adjusting to the most comfortable viewing. The SLV eyepieces feature high grade lanthanum glass, and deliver remarkably clear and high contrast star images to the edge of the viewing circle. The lenses are fully multicoated for high light transmission.Size 31.7mm/1.25"Apparent FOV 50°Eye relief 20mmWeight 168g (5.92oz)

£133.00*
Vixen SLV 50° Eyepiece 10mm (1.25'')
​The Vixen SLV series are the modern take on the classic Vixen Lanthanum eyepieces. These eyepieces were legendary for their generous eye relief and precise nature, making them a firm favourite with planetary, lunar and double star observers. This 10mm is an excellent eyepiece for medium to higher power on most telescopes, an ideal premium replacement for eyepieces supplied with telescopes, especially good for Planetary observers. The SLV Series of Vixen Eyepieces feature a hexagonal shaped eyepiece body, long 20mm eye relief, and twist up click stop eyecup for adjusting to the most comfortable viewing. The SLV eyepieces feature high grade lanthanum glass, and deliver remarkably clear and high contrast star images to the edge of the field of view. The lenses are fully multicoated for high light transmission.Size 31.7mm/1.25"Apparent FOV 50°Eye relief 20mmWeight 168g (5.92oz)

£133.00*
Vixen rigid Accessory Tray for HAL130 and Porta II Tripods
The Vixen rigid Accessory Tray for HAL130 and Porta II Tripods offers practical storage space for eyepieces and various accessories.It also improves the overall stability of the tripod.The tray can be used on the HAL130 and SXG HAL 130 for GP and SX, as well as on the Porta II tripod.PROPERTIESFor eyepieces and various accessoriesIncreases the stability of the tripodsCan be used on HAL130, SXG HAL 130 and Porta tripodsWHAT'S INCLUDEDTray for tripodsScrew set 

£27.00*
Vixen SG-L02 Headlamp red-light white-light
The perfect LED head torch for nighttime observations! Adjusting your eyes to the dark surroundings is very important when making astronomical observations. In dark areas, it is very difficult to use astronomical equipment without a suitable light. With normal lights, however, the light intensity is more important than protecting your eyes against bright light. Using these lights at night makes your pupils contract, which can make it difficult for your eyes to readjust to the darkness. The SG-L01, our first astronomy LED lamp, featured a built-in red LED that provided a solution to this problem. However, the red light did not offer optimal visibility. On our new astronomy LED light, the SG-L02, the LED lights produce warm light to improve visibility. They also ensure that your eyes stay adapted to the dark. The LEDs do not emit light in the sensitive range of 555 nm. The brightness of the white light can be adjusted between 3 and 42 lumen, while the red light can be adjusted between 0.28 and 7.62 lumen. FEATURES Dimmable red light ensures that your eyes stay adapted to the dark Built-in rechargeable battery, charges via USB Waterproof design LED colour can be switched from red to white 0.28 to 7.62 lumen for red light 3 to 42 lumen for white light Dimensions: 41 mm x 33 mm x 30 mm Weight: 29 g DELIVERY CONTENT SG-L02 head torch Strap (size S) Strap (size L) Pocket clip Cable for charging the battery (USB-A plug to USB Micro-B plug)

£65.00*
Vixen XY Red Dot Finder Scope II
Red dot finder for astronomical telescopes. This finder scope provides an easy way to align your telescope with objects in the night sky.The brightness of the dot can be adjusted via a dial.Designed for the Vixen viewfinder shoe FEATURES Weight: 185 g / 6.53 oz Battery: CR2032 Magnification: 1x 1/4" screw hole, adjustable red pointDELIVERY CONTENTLED red dot finderCR2032 battery

£77.00*
Vixen Viewfinder 7x50, with illuminated reticule
The Vixen Viewfinder 7x50, with illuminated reticule is an exceptionally high quality optical finder scope, featuring 50 mm Achromatic objective. The internal crosshairs are accurately inscribed and can be illuminated with a battery-powered LED attachment, which can be varied in brightness to the user's requirements. This finder gives a field of view of 7.2° in the night sky. Please note: this finder does not come with a bracket, but will fit numerous standard finder brackets - the X000288 Vixen S 50 mm finder scope short holder, or the X000073 Vixen XY finder scope long holder are particularly recommended. FEATURES Finder with 50 mm achromatic optics Field of view: 7.2° Battery: CR2032 Dimensions: 218x53 mm Weight: 0.375 kg WHAT'S INCLUDED: Viewfinder 7x50, with illuminated reticule

£145.00*
Vixen XY finder scope holder, long with spring
​Long bracket for the Vixen 7x50 finder item # 8616.For use on the Vixen finder shoe, used on many telescopesPROPERTIESSize: 50mm × 71mm × 131mmWeight: 170 g / 6.0 ozBuilt-in spring anti-slip mechanismFor Vixen finder holdersWHAT'S INCLUDEDFinder holder with spring

£65.00*
Vixen S 50 mm finder scope holder, short
​Vixen S 50mm finderscope bracket short, for 50mm findersFor attaching a 50 mm finderscope to the standard Vixen finder shoe, found on many designs of telescopes (not just Vixens)PROPERTIES50mm finderscope bracket shortFor attaching a 50 mm finderscopeCompatible with standard Vixen finder shoeWeight: 195 gWHAT'S INCLUDED50mm finderscope bracket short

£74.00*

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EXPLORE SCIENTIFIC BT-100 SF Giant Binoculars with 62° LER Eyepieces 20mm
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

£1,321.00* £1,699.00* (22.25% saved)
LUNT Mini SUNoculars yellow
​Small 6x30 binoculars for solar observing in White-Light.This truly pocket sized binoculars with 6x magnification are only for solar observing. You can view and safely study large Sun-spots, transits and solar eclipses. The Sun's image shows in a pleasing  orange colour, rather in a harsh blue-white, as it does in some other white light filters.Lunt Mini SUNoculars have White-Light filter film installed inside the binoculars. This makes solar observation 100% safe. The light of the sun is reduced to a comfortable 0.00001% transmission and all ultra-violet and infrared components are completely and safely blocked.Lunt SUNoculars are manufactured to the same standards of safety typical to the entire family of Lunt Solar products - the premier manufacturer of Solar telescopes and filters.FEATURESMagnification: 6xObjective lens diameter: 30mmEye relief: 9mmTransmission: 0.00001% (OD5)Filter type: Solar film, CE certifiedLength: 105mmWidth: 110mmWeight: 160gSCOPE OF DELIVERYMini SUNoculars in blister packStrap

£34.90*
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BRESSER Astro & Marine SF 10x50 WP binoculars
The ASTRO & MARINE binoculars from BRESSER are ideal for astronomy and maritime use, e.g. sailing and water sports enthusiasts. Robust and weatherproof per IPX6 levelThanks to their ergonomic rubber armouring, these binoculars fit securely in the hand and are also well protected against shocks and bumps. The binoculars are waterproof and filled with nitrogen. This effectively prevents fogging of the lenses, even in unfavourable weather conditions. Lightweight with tripod connection threadThe robust, yet very light construction is made possible by the most modern magnesium housing construction. Magnesium is around 35% lighter than aluminium. Due to the moderate 10x magnification and the low weight, these 10x50s are also very well suited for hands-free use. Nevertheless, there is a tripod connection thread on the centre axis. This means that the ASTRO & MARINE model can also be mounted securely on a photo tripod using the tripod adapter (Art.4914925) which is included as part of the package. Although this is not absolutely necessary with a magnification of 10x, it is highly recommended, especially for long-time astronomical observations, in order to obtain an absolutely steady image. Eyepieces for comfortable viewingThe precise single eyepiece focusing (SF) makes it possible to focus the binoculars once and then clearly observe all resolvable objects in the night sky, or on the horizon. In addition, this design prevents accidental change of focus. Foldable rubber eyecups and eyepieces with a comfortable eye relief distance (WP) of 20mm also allow those who have to wear glasses to observe, to use the entire field of view. High quality opticsThanks to fully multi-coated Bak4 optics, large 50mm objective lens diameter and the well-corrected eyepieces with 5 lenses in 3 groups, these excellent binoculars produce sharp and brilliant images. The maximum reduction of stray light achieved by internal baffles and housing/edge blackening, results in the best possible optical image and perfect contrast, even in difficult light conditions and especially at night.FEATURESBinoculars for astronomy, landscape observation and water sportsWaterproof per IPX6 level and filled with nitrogen to prevent lens foggingAlso for use in unfavourable weather conditionsExtremely high light gathering optics, making them ideal for night-time observationModerate magnification for a steady image, even when hand-holdingMagnification: 10x / Lens diameter: 50mmSingle eyepiece focus (SF) and foldable rubber eyecups, also suitable for spectacle-wearersWide pupil distance (WP) of 20mm for comfortable viewingWell corrected eyepieces for ultimate image sharpness and pinpoint star imagesModern multi-layer coatings on all lens surfaces for high light transmissionErgonomic rubber armouring - very good grip and protects against shocks and bumpsRobust construction, yet still lightweight due to magnesium housingDimensions: 191 x 202 x 66 mm / Weight: 1165 grams / Colour: blackTripod connection thread 1/4 inch available on the binocular bridgeMetal photo tripod adapter already included in deliveryWHAT'S INCLUDED Binoculars Carrying strap Dust caps Nylon travel bag Photo tripod adapter (Art. 4914925) Instruction manual

£137.00* £239.00* (42.68% saved)
BRESSER Spezial Astro SF 15x70 Binoculars
SPEZIAL ASTRO SF 15x70 binoculars from BRESSER are ideal for astronomy and landscape observation. Thanks to fully multi coated Bak-4 glass material, the extra large objective 70mm lens diameter and highly corrected eyepieces with 5 lenses in 3 groups, these binoculars provide bright, crisp images from edge to edge of their field of view. The high 15x magnification is convenient not only for observing astronomical objects but is also practical for viewing distant terrestrial objects. Due to a very high reduction of stray light, the binoculars deliver the best possible picture and excellent clarity. With the individual eyepiece focus set you can get a sharp image for all astronomical distances, with no "focus creep" to spoil the view . Foldable rubber eyecups give eye glass wearers the possibility of making the best use of these binoculars wide field of view. Large diameter ocular eyepiece lenses provide extremely comfortable viewing, making longer observations possible without eye fatigue.The binoculars are waterproof and ARGON gas filled to avoid internal fogging. The ergonomic rubber armouring provides a good grip and is also protected against shocks, making them rugged and ideal for transportation. With the tripod thread in the lengthened centre axis, the SPEZIAL ASTRO can be mounted onto any photographic tripod. For tripod use the tripod adapter (part No. 4914925) is icluded. The use of a tripod is highly recommended, as hand holding at the high magnification of 15x makes it difficult to obtain a steady image. FEATURES binoculars for astronomical and landscape observations extremely high light gathering capacity  high magnification for for distant objects fully multi coated optics waterproof and ARGON gas filled against fogging magnification: 15x / objective lens diameter: 70mm individual eyepiece focus and foldable rubber eyecups highly corrected eyepieces for crisp images from edge to edge ergonomic rubber armouring - ruggedly protected against shocks dimensions: 290x215x85mm / weight: 1900g tripod thread availabletripod adapter included SCOPE OF DELIVERY binoculars neckstraptripod adapter dust covers caseinstruction manual

£295.00*

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BRESSER Messier NT203s/800 Optical Tube
NEW – now including a high-quality aperture Solar-filter for safe observation of sunspots, eclipses and planet transits. Great telescope for night and solar observation.In the past few years the Bresser Newton telescopes have become the standard workhorse for Deep Sky astrophotography. We now proudly present the second generation of this telescope, the Bresser NT-203s/800 with Hexafoc and a fast parabolic main mirror. The Bresser NT-203s/800 f3.9 will deliver you deeper images due to its - compared to 8" f/5 systems - oversized primary mirror and therefore faster optical system with the same exposure time. The big 85 mm secondary prevents vignetting for optimal illumination The excellent 2.5" Hexafoc focuser also does not cause vignetting due to its large diameter and makes focussing a joy - the smoothness and shifting-free operation sets new standards in this price class. This groundbreaking focuser, tube rings with 44mm universal standard dovetail and camera mounting feature and a high-end finderscope with haircross and laser-engraved scale  leave nothing to desire even for demanding astrophotographers. The NT-203s/800 Hexafoc has a classical tube construction with an aluminium tube. The focuser can be upgraded with a 10:1 reduction (part No. 0625720) without problems. Ready to use with the  HR Coma Corrector (part No. 0510330) which eliminates coma, field-curvature and astigmatism.Please note: Reflector telescopes with optical design Newton are very good for astronomical observing at the starry night sky. But these telescopes are not well usable for observing landscape and nature during daylight. Therefore we suggest BRESSER refractor (lens) telescopes for landscape and nature observing.CHARCTERISTICS Optical design: reflector telescopeMirror diameter: 203 mm / focal length: 800 mm / F/3.9Maximum recommended magnification: 406xTelescope for night and solar observing Very high quality Hexafoc focuser with 2.5" free inner diameter Diffraction limited optics with parabolic main mirror 8x50 straight through viewfinder with reticle Optimized finder socket for comfortable use Cradle rings with handle and integrated piggyback camera holder (1/4 thread) Smartphone adapter for celestial navigation included Dovetail plate with stainless steel rail Can be connected to SLR cameras (optional T2 ring required) 50.8mm (2) to 31.7mm (1.25) adapter with integrated T2 thread (T2-adapter ring for your camera is needed) Aperture 203 mm Focal length 800 mm Focal ratio f/3.9 Backfocus fully inward focused: 100 mm 85 mm secondary mirror for optimal illumination Large knobs for primary and secondary mirror adjustment Tube without accessories: 8.7 kg - Tube with all accessories mounted: 11.5 kgSCOPE OF DELIVERYOptical tube 26 mm Super Plössl eyepiece 31,7 mm (1.25") Integrated 31,7 mm and T2 adapter Prism rail with stainless steel clamping surface Adapter for 50.8 mm (2") eyepieces 8x50 optical viewfinder Rotatable star map Aperture solar filter Tube clamp with handle and camera holder Smartphone adapter for celestial navigation Software Stellarium (via download)

£569.00*
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EXPLORE SCIENTIFIC BT-82 SF Giant Binoculars with 62° LER Eyepieces 20mm
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-82 binoculars produce a 24x magnification. Thus these wide angle eyepieces offer a very good overview (field of view 2,6 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 18x to 60x (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 24x magnification and an apparent field of view of 62 degrees, true visible field of 2,6 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 25x to 75x 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: 82mm / 470mm / F=5.7 Sealed to IPX6 standard and nitrogen filled: yes / yes Close focus distance: 35 meters Eyepiece mount diameter: 1.25'' / 31.7mm Adjustable interpupillary distance: 54 to 76 mm Helical single focus: yesBAK-4 prism system for a bright and high-contrast imageDimensions and weight of binoculars: 445 x 226 x 122mm, 4.3kg 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

£1,148.00* £1,399.00* (17.94% saved)
Vixen VMC200L Maksutov-Cassegrain mirror telescope - optical tube
Featuring an improved design and optical properties, this compact field corrected Maksutov-Cassegrain system is Vixen's answer to Schmidt Cassegrain and more conventional Maksutov Telescopes. Instead of a heavy corrector plate, the Meniscus corrector is located directly in front of the secondary mirror. As a result, the Field-Maksutov does not dew up easily, as most conventional SCT s and Maksutovs do, when exposed to humid air.  Thanks to the VMC's open tube system, the optics cool down quickly, ensuring that the telescope is ready for use in no time - again offering advantages over traditional Schmidts and Maksutovs, which can take a long time to acclimatise and reach thermal equilibrium. The long focal length of the VMC allows you to make detailed observations of planets, distant galaxies, individual lunar craters and mountains and many other celestial objects.  The mirror is manufactured using an advanced coating deposition technique, normally reserved for research-grade instruments - ensuring an extremely smooth and precisely-finished optical surface.  This, combined with the secondary corrector delivers extremely pleasing visual and photographic performance, with a very flat field.  Unlike the primary mirrors in many rival SCTs and Maksutovs, the VMC200L's primary is fixed and doesn't travel on a focuser baffle, adding to stability and as a result this telescope does not suffer from "mirror flop" or focus shift.The focuser is a conventional, smooth-running single speed rack and pinion design, which ensures stability, even at high loading.  It can be simply upgraded to dual speed use for finer focus control with the X000143 Vixen Dual-Speed-Focuser, if required.The telescope is supplied with a standard Vixen profile mounting dovetail bar and is also supplied with a carry handle, which makes transport and mounting much easier.  The carry handle can also double up as a mounting platform for other accessories, if required.The VMC200L is also supplied with Vixen's superb 7x50mm illuminated finderscope, with variable brightness control, to help you guide the telescope accurately to targets.Last, but not least, is the inclusion of Vixen's extremely useful flip mirror system, which allows for mutual mounting of 1.25" eyepieces or accessories.  Both eyepiece holders can be unscrewed, revealing a standard T2 mounting thread, which allows easy mounting of many cameras or other photographic accessories to either port.  The ability to be able to flip simply between visual use and a camera is of great help when trying to centre and image compact targets - speeding up acquisition of targets and making better use of your time under the night sky.FEATURES 200 mm mirror Focal length: 1950 mm (f9.75) Resolution and limiting magnitude: 0.45 arc seconds; 13.3 Light-gathering power: 816x Backfocus without Reducer: 144.9 mmBackfocus with Reducer: 63.5 mm Dimensions and weight: 232 x 510, 6.8 kg Adapter and connections: 60 mm thread WHAT’S INCLUDED Dovetail bar Flip mirror Carry handle 7x50 viewfinder, illuminated

£1,682.00*
Vixen BT-81S-A Astronomy Binoculars
Take a look through the new Vixen BT-81S-A binoculars. You will be impressed when you use them to observe gas nebula, star clusters or comets. The magnesium fluoride coating reduces chromatic aberration and the large aperture of 81 mm ensures a razor-sharp, contrast-rich image. The BT-81S-A binocular telescope set weighs 4.1 kg, is portable and also exceptionally suited for nature observations. FEATURES Objective lenses: 81 mm 2-lens achromat, multi-coated Focal length: 480 mm (f5.9) Resolution and limiting magnitude: 1.43 arc seconds; 11.3 Light-gathering power: 134x Dimensions and weight: 480 x 190 x 155 mm; 4.1 kg Adapter and connections: 31.7 mm sockets WHAT’S INCLUDED Binoculars 80 mm Carry handle Viewfinder Dew caps

£1,215.00*