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Vixen SD103S apochromatic Refractor

With BRESSER, you can enjoy a smooth introduction to the vast world of astronomy. Our detailed information ("Telescope Guide") provides valuable tips for beginners—but even experienced astronomers can use the information we provide (e.g., tables for the geographical latitude of all major world cities) as a reference.

Here is the table of contents of the comprehensive BRESSER Telescope Guide:

Sky Guides by Bresser

The Sky Guide provides comprehensive information on constellations, planetary positions, and astronomical events – perfect for planning your observations and delving deeper into astronomy.
Visit the guide directly here to make the most of your observations!

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Product and safety instructions


Manufacturer: 
Bresser GmbH, Gutenbergstraße 2, 46414 Rhede

Contact: 
www.bresser.de


Warning notes
  • General safety instructions DANGER Risk of suffocation! Improper use of this product can result in suffocation, especially for children. Therefore, carefully observe the following safety instructions. Keep packaging materials (plastic bags, rubber bands, etc.) away from children! There is a risk of suffocation! Keep cords, ribbons, and similar materials away from children! They could accidentally strangle themselves and suffocate! NOTE Risk of material damage! Improper handling can damage the device and/or accessories. Therefore, only use the device according to the following safety instructions. Do not dismantle the device! In the case of a defect, contact your dealer. They will contact the service center and may send the device in for repair.
  • Never look at the sun through an eyepiece/telescope without a certified protection filter. A moon filter can never be used for solar observation. The moon filter is only suitable for moon observation. The solar filter must be mounted in front of the telescope opening, not at the eyepiece. Otherwise, the concentrated light beam through the optics will immediately destroy the filter foil, leading to severe eye damage, including permanent blindness.
  • Never leave the optics unattended. Children and inexperienced adults could point the telescope at the sun without proper precautions and lose their eyesight.
  • Do not expose the device to high temperatures.
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Accessories

Vixen SD Reducer HD Kit
High-performance flattener and reducer set connection rings for Vixen telescopes SD81S, SD103S and SD115S, as well as the ED predecessor series. High-performance flattener and reducer set The kit consists of a high-performance flattener, a reducer for reducing the focal length, and connection rings (distance ring SD81, EX Tube 66), which were developed for prime-focus astrophotography with the SD81S, SD103S and SD115S telescopes. The flattener and the 0.79x reducer deliver a significant increase in telescope performance and image quality. You obtain a flat and sharp image until the edges, including with a full-frame DSLR camera. Ultra-sharp image over the entire field of view of the DSLR full-frame sensor The SD flattener improves the image quality to the edge of the field of view without changing the original focal length of the telescope. The field of view of the DSLR camera with a full-frame sensor is fully illuminated (44 mm), ensuring that stars appear sharp until the edges of the image. When used in conjunction with the Reducer HD, the focal length is reduced by a factor of 0.79 (f/7.7→6.1) whilst maintaining the 44 mm illumination. High-contrast AS coating The anti-reflex AS coating, which is also used on our high-end VSD 100 f/3.8 astrograph, delivers a high light transmission of 99.9% per lens surface. Loss of light, ghosting and scattered light images are virtually eliminated thanks to the completely matte interior coating. FEATURES Reduces the focal length by a factor of 0.79 Designed for full-frame cameras High-contrast AS coating Ultra-sharp image over the entire field of view Designed for full-frame DSLR cameras Illumination: 44 mm Correct distance to chip: 63.5 mm Designed for the SD81S, SD103S and SD115S Also suitable for the ED81S, ED103S and ED 115S DELIVERY CONTENT SD Flattener HD Reducer HD Adapter ring for SD81 66 mm EX extension tube Dust caps

Currently not available

£467.00*
Vixen 60DA Focal adaptor for Canon EOS Cameras
Vixen 60DX Focal adaptor for Canon EOS Cameras This Vixen 60DX is a photographic adaptor for Canon EOS cameras, for use with telescopes with a 60 mm focuser drawtube connection thread. A redesign by Vixen uses new tougher materials for a more solid connection and also offers an accurate, well-machined camera rotator ring, in order to help frame your images perfectly. Camera-Adaptor for Canon EOS with 60mm Focuser connection thread Large inner diameter for full-format cameras, helping to minimise vignetting 6 locking 60° spaced bolts to hold the camera’s rotation in position Dimensions: 81mm x 30 mm / weight: 190g The option of using 6 long or 6 short fixing screws for the rotator The Vixen 60DA Focal adaptor connects your Canon EOS DSLR Camera to a telescope with an appropriate 60 mm Focuser Drawtube Thread. Thanks to the use of new materials and an improved design Vixen was able to considerably uprate both precision and durability, when compared to conventional rotational camera adaptors. Two sets of rotational locking bolts (Long and Short) are supplied. The longer ones are knurled and easy to turn by hand. The shorter options help to prevent marring of the camera casing, when using certain designs of camera and are also much less easy to turn by hand, increasing security if you need the camera locked in a particular rotational position for longer periods. The large inner dimension of this adaptor prevents vignetting at the edges of the image when using full frame DSLR cameras. Canon EOS-Bayonet fastener made of hardwearing brass, for years of hassle-free use. Increased material quality over conventional adapters provides more stability in use. 6 fixing bolts hold the camera in rotational position for increased sturdiness (standard rotators often only use 4, or less). FEATURES Screw tips with Delrin-tips prevent tilting of the camera and subsequent image distortion. Large inner diameter prevents vignetting. Inner blackening suppresses scattered light. Compatible with 60 mm accessories, when the camera adaptor is taken off. Two rotational bolt sets (Long and Short) are supplied. SCOPE OF DELIVERY 60DA Focal adaptor 6 long and 6 short fixing screws

Available

£139.00*
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Vixen Wide Photo Adapter 60DX for Nikon
The Wide Photo Adapter 60DX connects your Nikon DSLR camera to your telescope via a 60 mm thread. Thanks to the use of new materials and an improved design, Vixen was able to significantly improve the precision and load capacity compared with conventional adapters. The adapter's large interior diameter prevents shadows at the edges of the image when using a full-frame DSLR camera.FEATURESIncreased material strength for additional stability6 screws hold the camera in position (compared with 4 on most conventional adapters)Screw tips with Delrin inserts prevents the camera from tilting and minimizes distortion.Large interior diameter prevents shadowingBlack interior prevents scattered lightCompatible with 60 mm accessories when the camera adapter is removed2 screw sets (L and S) prevent scratches on the camera housing2 screw sets for adjusting the rotation resistanceDELIVERY CONTENTVixen Wide Photo Adapter 60DX for Nikon cameras2 screw sets (L and S)

Available

£127.00* £159.00* (20.13% saved)
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Vixen T2 ring for Nikon
T2 rings are used as a connecting piece between the camera adapter and the camera. Please note that each camera type requires a different T-ring.FEATUREST2 adapter ring for Nikon camerasAdapts the camera to telescopes and microscopesWeight: 22 gPACKAGE CONTENTSVixen T2 ring for Nikon

Available

£22.00* £28.00* (21.43% saved)
Vixen T-ring for Canon EOS
T-rings are used as a connecting piece between the camera adapter and the camera. Please note that each camera type requires a different T-ring.FEATURESVixen T-ring for Canon EOS camerasConnects a camera adapter to the cameraFor microscopes, telescopes and T2 lensesWeight: 52 gPACKAGE CONTENTSVixen T-ring for Canon EOS

Available

£28.00*
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)

Available

£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)

Available

£133.00*
Vixen SLV 50° eyepiece 2.5 mm (1.25")
The SLV eyepieces with high-quality lanthanum glass provide remarkably clear and high-contrast images of the night sky right to the edge of the field of view. The lanthanum elements almost completely eliminate chromatic aberration, producing a colour-neutral image right up to the edges. The lenses are also fully multi-coated for high light transmission. The eyecup can be twisted up and down, making the eyepiece suitable for glasses wearers. The large exit pupil distance of 20 mm means that the eye does not become fatigued during longer periods of use, and the entire field of view can be seen clearly even when wearing glasses. The eyepiece also features a standard 1.25" filter thread for colour and nebula filters. In addition, the insides of the eyepiece sleeves are fully blackened to reduce distracting reflections. FEATURES Very high contrast and sharpness over the entire field of view Comfortable interpupillary distance of 20 mm Lanthanum glass almost completely eliminates chromatic aberration 31.7 mm eyepiece barrel 1.25" filter thread Full multi-layered coating Eyecup can be twisted down for glasses wearers Weight: 173 g PACKAGE CONTENTS Vixen SLV 50° eyepiece Dust caps

Available

£133.00*
Vixen SLV 50° Eyepiece 20mm (1.25'')
The SLV eyepieces with high-quality lanthanum glass provide remarkably clear and high-contrast star images right up to the edge.The lenses are fully multi-coated for high light transmission.Thanks to the large and comfortable eye relief distance of 20 mm , the eye comfort is maintained, even during longer observing sessions.Even those who wear glasses will have the entire field of view is clearly visible.The click stop eyecups can be tuned up or down to the user's preference.PROPERTIESVery high sharpness and contrast across the entire field of viewComfortable eye relief of 20mmalmost no colour defects due to lanthanum glass1.25" 31.7 mm barrel sizeTurn-down eyecup for people who wear glassesWeight: 155 gWHAT'S INCLUDEDVixen SLV 50 ° eyepieceDust caps

Available

£133.00*
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

Available

£133.00*
Vixen SLV 50° Eyepiece 4mm (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 4mm is an excellent higher power eyepiece on shorter focal length telescopes, especially good for Lunar viewing - or for those trying to max out their longer focal length scopes for double star work. The SLV Series of Vixen Eyepieces feature a hexagonal shaped eyepiece barrel, 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)

Available

£133.00*
Vixen SLV 50° Eyepiece 5mm (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 5mm is an excellent higher power eyepiece for most telescopes, especially good for Lunar and Planetary observers. The SLV Series of Vixen Eyepieces feature a hexagonal shaped eyepiece barrel, 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)

Available

£133.00*
Vixen SLV 50° Eyepiece 6mm (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 6mm is an excellent choice for higher power on most telescopes, especially good for Lunar and Planetary observers. The SLV Series of Vixen Eyepieces feature a hexagonal shaped eyepiece barrel, 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)

Available

£133.00*
Vixen SLV 50° Eyepiece 9mm (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 9mm is an excellent choice for higher power on most telescopes, an ideal premium replacement for eyepieces supplied with many telescopes, especially good for Planetary observers. The SLV Series of Vixen Eyepieces feature a hexagonal shaped eyepiece barrel, 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)

Available

£133.00*
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Vixen T-Ring for Sony E Cameras
This T2 ring allows you to use your Sony camera on a telescope or microscope with a T2 thread.Depending on the mode, you may require an additional camera adapter.FEATUREST-2 ring for connecting an SLR cameraDesigned for Sony EWeight: 113 gDELIVERY CONTENTT-2 Ring Sony E

Available

£44.00* £55.00* (20% saved)
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Vixen T-Ring - Sony (Konica-Minolta-Sony Alpha)
Connects a Four Thirds camera to your telescope or microscope.A camera adapter is required for this purposeWeight: 58 gDELIVERY CONTENTVixen T-ring - Four Thirds

Available

£22.00* £28.00* (21.43% saved)
Vixen Micro 4/3 T-ring
T-rings are used as a connecting piece between the camera adapter and the camera. Please note that each camera type requires a different T-ring.FEATURESMicro 4/3 T-ringFor telescopes and microscopesWeight: 110 gPACKAGE CONTENTSMicro 4/3 T-ring

Available

£51.00*
Vixen Dual-Speed-Focuser
​The 1: 7 reduction enables very fine focusing of targets.An indispensable accessory, especially in astrophotography.The reduction can be retrofitted on the following telescopes:A80M, A105M, NA140SSf, ED81S, ED103S, ED115S, AX103S, VC200L, VMC200L and R200SSCannot be used on old devices from the 90s with plastic focusing knobs - in these cases, it is also necessary to swap the focus spindle (please contact us for details).PROPERTIESAllows very fine focusingIndispensable in astrophotographyCan be retrofitted to many Vixen telescopesReduced to 7:1Weight: 170 gWHAT'S INCLUDEDDual Speed KnobAssembly tool

Available

£192.00*
Vixen 2x Barlow Lens with T2 Thread
This Barlow lens doubles the focal length of your telescope. It allows you to make astronomical observations with a higher magnification than a conventional eyepiece. Thanks to the Barlow lens between the eyepiece, you can obtain a greater magnification whilst maintaining a comfortable interpupillary distance.This Vixen 2x Barlow lens is ideal for observing and photographing lunar landscapes and details on the brighter planets. The Barlow lens also features a T2 connection for photography with DSLR cameras. With T2 extension tubes, it can also be used as a camera projection adapter.With a deflecting prism, the Barlow lens enables you to obtain a magnification factor of 3.3x.FEATURES2x Barlow lenses with T2 thread2-lens optical systemDoubles the magnification factorAlso suitable as a camera adapter31.7 mm sleeveWeight: 80 gDELIVERY CONTENT 2x Barlow lenses Dust caps

Available

£56.00*
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)

Available

£65.00*
Vixen Moon Filter ND
The bright moon becomes even brighter when viewed through a telescope.With large telescopes, observing at full moon can cause significant eye strain and impair your night vision when you move your eye away from the eyepiece.This moon filter reduces the amount of light, allowing you to observe the moon in comfort.The moon filter features a screw thread for 31.7 mm eyepieces. FEATURES Moon filter for 31.7 mm eyepiecesReduces the brightness of the moonProtects your eyes against bright moon lightWeight: 10 gDELIVERY CONTENTMoon filter

Currently not available

£42.00*
Vixen universal T2 focal adapter, 60 mm
​This Vixen focal adapter connects your DSLR or other camera to your telescope with a 60 mm thread.The large interior diameter of the adapter prevents vignetting at the edges of full-frame camera sensors.The focal adapter can be rotated so that the image field can be perfectly framed.This rotational adjustment is facilitated via 3 locking screws, ensuring a firm lock.Note: Vixen T2 ring is also required for your brand of camera.In this case, the inner ring of the T2 adapter is removed and clamped in place with three small grub screws.PROPERTIESConnects your DSLR camera to your telescopePrevents shadowingDimensions: 72 mm x 20 mmWeight: 55 gWHAT'S INCLUDEDFocal adapter universal 60 mmAssembly tool

Available

£50.00*
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VIXEN 35655 Carry Bag for OTA & tripod
Safe and convenient bag to transport your OTA or tripod to your observing site. Holds many size tubes. Wrap the optical tube in the protective cloth with Velcro tape and secure it to the wall inside the carrying bag. Includes 2 accessory pouches to store a finder scope and flip mirror. Reflective tape on the carry strap increases visibility at a dark site.Suggested tubes and tripods: A80M ; A80Mf ; A70Lf ; ED103S; AX103S ; SXGHAL130 and SXG-AL130 TripodFEATUREScarry bag for tubes & tripod maximum optical tube size: 850x125mm (L&W)reflective tape on handles prevent lossSCOPE OF DELIVERY1x Vixen Carry Bag2x accessory pouches

Available

£69.00* £93.00* (25.81% saved)
Vixen Reducer HD
Above-average contrast The Reducer HD features the optical coating that was developed by Vixen for our high-end VSD100F3.8 astrograph. The AS coating provides light transmission of up to 99.9% per lens surface. The special matte surface in the interior also minimizes ghosting, light loss and lens flares. Reducer HD in combination with SD telescopes The Reducer HD can be used on telescopes from the SD series (SD81S, SD103S and SD113S) with the SD Flattener HD Kit (item #37246) . The Reducer HD reduces the focal length by a factor of 0.79x (f/7.7 to f/6.1) and delivers a razor sharp image over the entire 44 mm image sensor surface on DSLR cameras. Reducer HD in combination with AX103S and VC200L telescopes In addition to the SD telescopes, the Reducer SD is also compatible with the AX103S and VC200L telescopes. With these telescopes, the focal length is reduced by a factor of 0.77x.FEATURESUp to 99.9% light transmission per lens surfaceReduces the focal length by a factor of 0.79xAlso suitable for full-frame DSLR camerasFor the ED/SD 81S, 103S, 115SAS coating with light transmission of up to 99.9% DELIVERY CONTENTVixen Reducer HDDust caps

Currently not available

£326.00*
Vixen SD Flattener HD Kit
​High quality SD field flattener HD kit for the Vixen ED and SD refractor telescopesWith this image field plane you get razor-sharp star images up to the edge of the field of view.The flattener illuminates a 44 mm image circle and is therefore also suitable for full format cameras.The same anti-reflection AS coating that is also used for Vixen's high-end astrograph VSD 100 f / 3.8 enables a high light transmission of 99.9 percent per lens surface. Loss of light, ghosting and stray light images are almost completely eliminated by the completely matt interior coating.Can be used on the SD81S, SD103S and SD 115S, as well as the predecessor ED seriesAlso requires the Wide Photo Adapter and a T2 ringWeight 218 g

Currently not available

£280.00*
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Vixen Dew Cap Heating
The Vixen dew cap heater prevents your optics from fogging up due to dew.A must-have accessory for cold and damp nights.FEATURES Consumption: 16.2 Ohm (12 V, 8.9 W) Dimensions: 655 mm long heater with 2.2 m cable Connection: 2.1 socket with medium-negative polarity Weight: 120 g DELIVERY CONTENT Battery box Vixen dew cap heater

Currently not available

£92.00* £115.00* (20% saved)
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Sun projection screen set B
Accessory for solar observation. This projection screen allows you to observe the sun safely.Sun projection allows several people to observe the sun at the same time.A projection screen is therefore ideal for groups of visitors at observatories, or for use in school lessons. FEATURES Compatible telescopes: Vixen A81M, ED81SII, SD81S, A105M, AX103S, ED103S, SD103S, ED115S, SD115S Weight: 980 g (body only 866 g)DELIVERY CONTENTSun projection screen set B

Currently not available

£129.00* £179.00* (27.93% saved)
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Vixen Dovetail Slide Bar M
The Vixen dovetail bar M is designed to balance an optical telescope tube. This is achieved by securing the bar to the tube clamps.FEATURES Dimensions: 211 mm x 50 mm x 21 mm Weight: 270 g / 9.52 ozDELIVERY CONTENTVixen dovetail bar MToolMounting screws

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Vixen Porta II azimuthal mount
The Vixen Porta II is a high-quality azimuthal mount from the award-winning manufacturer Vixen. Featuring an intuitive, versatile and reliable design, the Porta II was specially developed to enable quick and precise telescopic observations along the vertical and horizontal axes without the need for a complex setup. It comes with fine adjustment wheels for fine tuning the position of the telescope to track astronomical objects. It also has a highly portable design thanks to the detachable mount head, which can be quickly detached from the tripod via an M10 screw. In addition, the dovetail mounting system (Vixen standard) ensures maximum compatibility with a wide range of telescopes. The Vixen Porta II mount in detail Easy to use The Porta II does not require a clamp, as it sports a slip clutch that allows you to adjust the mount to your desired object. It also holds its position automatically, making it very easy to use. Highly portable design The mount is easy to transport thanks to the Porta II mount head, which can be detached by removing a single screw. Easy to operateThe Porta II adjustment system allows you to track objects and make fine adjustments using the supplied shafts, which can be repositioned as necessary for optimal viewing comfort.Practical accessory storage The accessory holder features slots for your eyepieces. It can also be used to store smaller photography accessories. The holder is easy to mount via a centrally positioned screw. Built-in tool The mount comes with a tool for adjusting the friction of the slip clutch. The tool is located underneath the rubber cover for easy access. FEATURES 360° fine adjustment with worm gears2x sprockets with 120 teeth eachNo axle clamp requiredSlip clutch friction systemDovetail system (compatible with the GP and Sphinx mount) Adjusts by up to 45° Mounts tubes with an aperture of up to 155 mmPACKAGE CONTENTSVixen Porta II mountAluminium tripod2 fine adjustment wheelsMounting toolStorage shelf for accessories

Available

£306.00*
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EXPLORE SCIENTIFIC ED APO 127mm f/7.5 FCD-100 CF HEX
Highly corrected 127mm air-spaced triplet apochromat (with three lenses) and carbon fibre tube and a 2.5" high-precision HEXAFOC focuser. NEW: Now with hybrid viewfinder shoe to accept different viewfinder holders.    Apochromats are the ultimate choice in small to medium sized telescopes: the combination of compactness, transportability, very high image contrast and sharpness together with excellent astrophotographic performance cannot be bested. The advances in glass manufacturing during the last few years have made true apochromats available to more astronomy enthusiasts than ever before. The new Explore Scientific FCD-100 CF Hex represents another major improvement in this field - the overall correction (colour and spherical) is setting new standards in this price class. The optical design shows a polystrehl value of 0.97 indicating a level of correction that is absolutely top of the line.This excellent apochromat is a very versatile telescope: its reasonably fast f-ratio makes for short exposure times when imaging deep sky objects, but it is still of a significant focal length, making higher power planetary and lunar observation comfortable without having to use really high magnification eyepieces. The high contrast and sharpness of the image provide breathtaking views of large objects like the North America nebula or the Andromeda galaxy, as well as tack sharp planetary images. The telescope is lightweight and compact - the dew shield slides down the tube to minimize size for transportation. Revolutionary glass and precision manufacturing come together to deliver a telescope that offers observing and imaging at the highest level. The Carbon Fibre construction allows this telescope to be used on lower capacity mounts, increasing convenience and portability. Although there are smaller instruments available, the combination of aperture and optical excellence at such a low weight and compact tube makes this an excellent travel scope. The well-designed 2.5" HEXAFOC focuser with 10:1 reduction is perfect for both visual and astrophotographic use - the large inner diameter of 65mm prevents vignetting by the focuser when the telescope is used for astrophotography with large sensors (full frame and above).We offer the very popular EXPLORE SCIENTIFIC Triplet ED APO Refractors in 3 different product lines:Essential Line: HOYA FCD-1 Glass lens, AL-Tube, 2.0" Rack & Pinion Focuser with 1:10, 2.0" Star Diagonal 99% Reflectivity (see Part No. 0112084(AL), 0112106(AL), 0112132(AL)), 0112155(CF + 3"FT)). Professional Line: HOYA FCD-100 Glass lens, AL/CF-Tube, 2.5" HEXAFOC Focuser with 1:10, 2.0" Star Diagonal 99% Reflectivity (see Part No. 0112086(AL), 0112108(AL), 0112109(CF), 0112134(AL), 0112135(CF))High-End Line: OHARA FPL-53 Glass lens, Carbon(CF) Tube, 3.0" Feather-Touch Focuser with 1:10, 2.0" Star Diagonal 99% Reflectivity (see Part No. 0112165(CF))SPECIFICATIONSAperture: 127mmFocal Length: 952mmFocal ratio: f/7.5Design: Apochromat with three lenses, two air spaces and FCD-100 glassWeight: 5.2kg, lightweight due to carbon fibre tubeBackfocus: 150mm above 2" adaptorHybrid viewfinder shoe to accept different viewfinder holdersWHAT'S INCLUDED Optical tube with retractable dew-shield2.5" HEX focuser with 1:10 gear reduction  2" Star Diagonal 99% reflectivityTube rings with dovetail plate and handle Extension tubes for focuser (2pcs)Dust caps for front-lens and focuserHybrid viewfinder shoe 

Available

£1,998.00* £2,779.00* (28.1% saved)
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Vixen Universal Tripod Accessory Pouch
The soft padded Vixen accessory bag can be attached to a tripod, keeping your accessories close at hand. The bag is exactly the right size for the Polarie U Star tracker. But also other accessories, such as a camera lens, batteries or the remote control of your camera can be stored safely and within reach in this soft bag. The neoprene material, which absorbs shocks excellently and offers good thermal insulation, protects your accessories extremely well. and protects your batteries and USB battery packs from extreme cold. FEATURESAccessory bag for attaching to a tripod Perfect fit for the Polarie U Star Tracker Suitable to keep all kinds of accessories clos at hand Material: neoprene, polyester Dimensions: 11 x 13 cm Weight: 95 g SCOPE OF DELIVERYTripod accessory bag Fastening strap

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£19.90* £32.00* (37.81% saved)
Vixen SXD2WL SD103SII Telescope Set
Complete SXD2WL SD103SII Telescope Set with GoTo Mount, Tripod, and EyepiecesThis high-quality apochromatic refractor telescope set impresses with its 103-mm SD optics. The telescope is made in Japan and stands out for its excellent workmanship, sharpness, and contrast performance.The advantage of this SD refractor lies in its short construction length and its low weight. You will be amazed when you observe the moon's surface with its craters or Saturn with its ring system. On Jupiter, on a clear night, the two bright cloud bands and many smaller details become visible, such as the Great Red Spot on the planet. On moonless nights, you can observe the Andromeda Nebula, Orion Nebula, Eagle Nebula, Lagoon Nebula and many other interesting objects. Even weaker celestial objects become visible with this large aperture under a good sky.This telescope set "Made in Japan" leaves nothing to be desired. The FPL53 glass installed in the telescope reproduces an extremely clear and sharp image by eliminating residual chromatic aberrations to a high degree. The SD glass is designed to bring together all rays – violet, red, blue, yellow, and green – very precisely on the same plane. The special lens material thus reduces chromatic aberration across all colors.With the new Vixen SD103SII, no spacer shims are used anymore, leading to a significantly better image quality for bright stars. Therefore, no spikes are seen on stars in photographs, which were otherwise caused by the spacer shims. In combination with the optional SD Reducer HD Kit or SD Flattener HD (not included), this refractor telescope enables illumination with a 44-mm image circle for full-frame SLR cameras. The older ED81SII, ED103S, ED115S refractors were originally designed for visual observers and photographers with APS-C cameras developed. However, the new SD series is also optimized for the use of full-frame cameras due to the use of new internal apertures. The large 60-mm eyepiece extractor also allows for the attachment of heavy cameras without tilting. Moreover, the supplied folding mirror enables comfortable observation even in unfavorable observation situations and also provides a T2 thread for connecting a DSLR camera. Thus, you can observe in direct view or at a 90° angle . The carrying handle attached to the tube clamps ensures a safe hold during transport of the telescope. The stable metal tripod allows for a vibration-free recording of the telescope and mount even in windy weather. The SXD2WL mount is easily operated via a Wifi module with a smartphone or tablet. The free STAR BOOK Wireless app is available for user-friendly control of the mount. This allows you to use practical celestial navigation functions such as the automatic GoTo swiveling to specific celestial objects very easily via your smartphone or tablet. As the power consumption of the conventional LCD screen (STAR BOOK TEN) is eliminated, the power consumption of the mount is reduced by up to 20%. This enables longer astronomical observations and astrophotography. When you tap on the desired celestial object from a list, it automatically swivels into the telescope's field of view, and tracking begins. An existing STAR BOOK TEN control can also be used on this mount without any problems. Equipped with the same precision stepper motors as the top model, the AXD mount, the SXD2WL introduces a new standard of performance and precision in the Vixen mount family. The axis cross of the mount has a photographic load capacity of 15 kg and weighs just 9.2 kg, making it excellent for mobile observations. In addition, the motors located in the lower part of the mount simultaneously serve as counterweights. This means that the mount needs fewer weights for balance. Details of the SXD2 Mount Precision stepper motors and Micro-Step Motion Control System The heart of the SXD2 is the precision stepper motors, offering better performance and response than previous models. The Micro-Step Motion Control System boasts powerful yet very quiet drive properties, suitable for both fine movements and rapid sweeps. Built-in bearings The bearings of the RA and DEC axes and the worm shafts have been significantly improved to reduce the load on the motors. As a result, the motors move much more quietly than previous models. High-precision worm gears Advanced manufacturing technologies have eliminated errors in the worm drives. The edges of both the worms and worm gears are particularly smooth, allowing very precise tracking. DEC axis as counterweight The massive motor units are built into the lower part of the DEC axis, so the center of gravity of the SXD2 is just below the intersection point of the RA and DEC axes. This reduces the need for additional counterweights. Latitude adjustment The latitude is adjustable between 0 and 70 degrees (divided into 3 zones and adjustable +/- 15 degrees per zone, for high, medium, and low latitudes); latitude scale in 2-degree steps; fine adjustment with a tangential screw head, about 0.8 degrees per rotation. Built-in PFL-II polar finder with illumination The built-in 5x20 mm polar finder with a 10° field of view has a 3-star alignment system. This eliminates the need to set the date and time. The illuminated reticle with variable brightness and automatic shut-off is adjustable in 8 steps and is red illuminated. The alignment accuracy is 3 arc minutes. Details of the Wireless Module The Vixen Wifi adapter for EQ mounts allows you to control your Vixen mount via a smartphone or tablet. With the free STAR BOOK Wireless smartphone app, celestial navigation becomes easy and wireless. This way, the app instantly transforms your mobile device into a controller for the equatorial mount. The reaction delay of the mount, the biggest disadvantage of wireless connections, has been reduced to a level comparable to wired solutions. Reduced power consumption compared to traditional controllers with LCD monitor The power consumption of the mount is reduced by up to 20%, allowing for longer observations than with traditional wired controllers like the STAR BOOK TEN. Operation similar to the STAR BOOK TEN controller The STAR BOOK Wireless App is set up similarly to the STAR BOOK TEN controller. Depending on the star chart setting, it contains up to 259,000 celestial objects. Tap on a celestial object in the object list and start the GoTo. The mount automatically moves to this target and brings it into the telescope's field of view. All the popular features of the STAR BOOK TEN are retained. Comfortable operation While looking through the telescope, you control the mount by swiping on the star chart in the app. Since there are no buttons, you simply swipe your finger over the star chart to comfortably control the mount. Comprehensive astronomical data included This includes data on easily observable celestial bodies such as Messier objects, NGC objects, IC objects, as well as the sun, moon, planets, comets, and dwarf planets. High-precision alignment Alignment on one or two stars already provides a reasonably accurate positioning of the mount. By aligning on three or more stars, a highly precise alignment of the mount for high magnifications can be performed. The objects are then accurately and centrally placed in the telescope's field of view. The alignment information is stored and can also be retained when the device is turned off. By leaving the telescope in its current state after an observation, without moving it, you can start the next observation with the same settings. Individual adjustment options The app offers various individual adjustment options such as gear play compensation, red night mode, autoguider, variable GoTo speed, and LED brightness, similar to the STAR BOOK TEN controller. You can also set the time of the reversal of the objective tube (Meridian Flip) as desired. Even if the object moves south during tracking, you can prevent the telescope tube from reversing. Important information Not suitable for old SX mounts with the old blue Star Book Technical information about the Wifi module CPU with 32-bit CISC processor 120 MHz The unit is connected to the mount via a D-SUB 9PIN connector, similar to the STAR BOOK TEN. Equipped with a 6-pin, 6-wire modular connector for external autoguider operation. Supported operating systems are Android 6 or higher, iOS 9.0 or higher, WLAN standard: IEEE 802.11b/g/n FEATURESSD103SII TelescopeLens: D=103 mm, multi-coated2-lens SD apochromat without spacer shimsNo spikes on starsFocal length: 795 mm (f7.7)Resolution and limit magnitude: 1.13 arc seconds; 11.8Light-gathering capacity: approx. 217x more than the human eyeDimensions and weight: 115 mm dia x 810 mm; 5.5 kgFinder scope: 7x50 illuminatedAdapters and connections: 60 mm thread, 50.8-mm and 31.7-mm sleeve, T-ring threadConnection: 50.8-mm and 31.7-mm sleeve with Flip-Mirror / folding mirrorPhotography: Primary focus and eyepiece projection SXD2WL Mount RA gear wheel: 180 teeth DEC gear wheel: 180 teeth Axis material and diameter: Carbon steel / Decl. 35 mm, RA 40 mm thickness Polar finder scope: 6x20 mm, PFL-II polar finder Height fine adjustment: 0° to 70°, (fine adjustment +/- 15°, height) Counterweight rod: 20 mm diameter Azimuth adjustment: worm gear fine adjustment Power supply: DC12 V; 0.4~1.7 A Maximum load: 15 kg, photographic, without counterweights Counterweights: 1x 1.9 kg and 1x 3.7 kg Triпod connection: 45 mm pin Dimensions: 36 cm (H) x 12 cm (W) x 36 cm (L) Weight: 8.8 kg (19.4 lb), without counterweights 32-bit CISC processor 120 MHz Operating system: Android 6 or higher, iOS 9.0 or higher Connection: D-SUB 9PIN connector Autoguider input ST4 Power consumption SXD2WL+Wireless unit: DC12V / 0.3–2.0 A (load 10 kg), 0.4–2.2 A (load 15 kg) SCOPE OF DELIVERYSXD2WL MountWireless UnitCounterweights: 1.9 kg and 3.7 kgPolar finder scope, illuminatedAssembly toolsCar cigarette lighter cableSD103SII Lens TelescopeFolding mirror2 Eyepieces (SLV 20, SLV 5)Tube clampsDovetail mount7x50 Finder scope, illuminatedSXG Aluminium tripod

Available

£4,814.00*
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BRESSER Pirsch ED 8x42 Binocular Phase Coating
Brighter and with more colour fidelity are the binoculars of the BRESSER Pirsch ED Series As with the premium allround binoculars of the BRESSER Pirsch series the Pirsch ED Series are for every application range the right one, whether on vacation, journey, while hiking or hunting. Our Pirsch ED binoculars are equipped with the latest phase coating and allow the image to be more contrasting and high-resolution. In addition, these binoculars are equipped with the high-performance ED glass, which makes the colors even more radiant and the picture still more colorful. Color fringes are prevented by the special high-performance ED glass. This is reinforced by the high-quality fully multi coating. The combination of the built-in Barium-Kron glass material and the Dielectric coating on the prisms makes the picture even brighter and clearer. So they are well placed even at twilight.l makes the picture even brighter and clearer. Based on TwistUp eyecups spectacle wearers can also enjoy the full field of view. They are adjustable in 2 steps and also support the view without glasses. The rubber armouring, which is installed all over the binoculars, provides a gripping handling. All Pirsch ED models are equipped with a wide, very comfortable carrying strap. To complete the package, these models are all purged with high-quality ARGON gas, which protects the binoculars even more from fogging . Of course, the Pirsch ED models are protected against fog and water entry. FEATURES Compact and versatile binoculars High performance ED-glass High quality phase coating for bright and more high-contrast images Waterproof and ARGON purged to prevent fogging Rubberized housing Ideal also for spectacle wearers +/- 4 diopter SCOPE OF DELIVERY Binoculars Nylon case with shoulder strap Broad, padded carrying strap Protective objective lens caps Protective eyepiece caps Large lens cloth Manual

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£443.67* £443.99* (0.07% saved)