Skip to main content Skip to search Skip to main navigation

Vixen SD103S apochromatic Refractor

Help & Service for your product

Here you will find quick help, answers to frequently asked questions, and the direct path to support.

Service Portal

Please use our product help search to find answers to your questions. Simply enter the item number or EAN and open the appropriate help page directly.

Service Portal

Guides & Tips

FAQ - Frequently Asked Questions

That is normal. Finder scopes are only used to make objects easy to locate. The image orientation does not matter for observation.

  • Alt-azimuth: easy to use, moves horizontally and vertically
  • Equatorial: enables precise tracking of objects with only one axis – ideal for high magnifications and astrophotography

  • Moon: from 30 mm
  • Planets: from 100 mm
  • Deep sky: from 150 mm
Are you a member of an astronomy club? Find out here what your benefits are.
View conditions

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.
Skip product gallery

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

Currently not available

£139.00*
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

£159.00*
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

£28.00*
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)

Currently not 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*
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

Currently not available

£55.00*
Vixen T-Ring - Four Thirds
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

£28.00*
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

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*
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

£93.00*
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

Available

£280.00*
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

£115.00*
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

£179.00*
Skip product gallery

Customers also bought

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

Available

£46.00*
Skip product gallery

Customers also viewed

BRESSER Sirius 70/900 AZ Refractor Telescope with Smartphone Camera Adapter
Set off on your personal journey to the stars with the BRESSER Sirius 70/900 AZ lens telescope. The complete astronomy set already includes everything you need to start observing the sky: the astronomical lens telescope with 70 mm aperture and 900 mm focal length, the azimuthal mount, the tripod and a wide range of accessories for fascinating discoveries. At the same time, it is very easy to operate - ideal to amaze even children with a view of the night sky. Simply a stargazing classic - the telescope With this lens telescope - a so-called Fraunhofer achromatic refractor - even total astro-beginners and children can easily explore the secrets of our night sky. Because this classic design impresses with its special user-friendliness and easy handling. To ensure that you enjoy good imaging properties when looking at the Moon, Sun, planets and star clusters, the entry-level telescope has been equipped with modern, precisely coated optics. The 70 mm aperture collects a total of 100 times more light than the human eye. And it is also convincing compared to a comparable 60 mm telescope: the light gathering capacity is 36 % higher and the resolving power is also better. Thus, with the 70 mm lens telescope, significantly more details are visible at the same magnification, e.g. on Saturn's rings or the two main cloud bands of Jupiter. But how big do the celestial objects appear then? The resolution of the 70 mm lens lets you enjoy really sharp images at magnifications up to about 140x. For comparison: with a 60 mm aperture, this is only possible up to 120x. Technically, of course, the starter telescope can do even more - theoretically up to 675x with the included accessories. However, with increasing magnification, the image can slowly become more and more blurred. And how big you can really see the planets, star clusters and co. depends not only on the telescope. Another important factor: the air turbulence in the atmosphere (seeing conditions). A sharp image with good contrast - this is what the starter telescope achieves with its large focal ratio of about 1 to 12.9 (F/12.9), which is calculated from the ratio of the 70 mm aperture to the 900 mm focal length. And you will see: Due to the long focal length, especially the Sun, Moon, planets, open star clusters and globular clusters become absolute eye-catchers. Solid base for your stargazing hours - mount and tripod Found the ideal location for your nocturnal explorations? Then attach the telescope tube to the height-adjustable aluminium tripod with azimuthal mount. And this azimuthal mount is particularly compelling due to one quality: operation is really child's play. Simply swing the telescope by hand to the left or right, up or down, as with a common photo tripod. This way you can quickly move your gaze from one celestial highlight to the next. And where are the accessories? Simply place them on the storage plate between the tripod legs. This way, eyepieces, solar filter and co. stay always within reach. All the trimmings - the accessories The beginner’s telescope comes with everything you need for a quick start in stargazing. When searching for celestial bodies worth seeing, take your first look through the included LED viewfinder. Because the direction finder helps you to align the telescope precisely and find astronomical objects. It works like this: The LED finder is mounted in parallel on the telescope tube. It projects a red dot onto a small ground-glass screen that appears to float in front of the sky when you look through it. And that is exactly where the aperture of your telescope points. This way, you can always keep an overview of the night sky - before focusing your attention on the details through the magnification of the telescope. And you decide how high this magnification is by choosing the eyepiece. You will be amazed: the two eyepieces included in the set (4 mm, 20 mm) allow you to admire completely different images of the same object. If you one day want a change of perspective, you can expand your astronomy set with a large selection of eyepieces. For this purpose, the socket diameter is 1.25 inches (31.7 mm), which corresponds to an international, manufacturer-independent standard. You like what you see, but would love more detail? Then simply insert the 3x Barlow lens between the telescope and the eyepiece. And you have tripled the magnification of the eyepiece! Observation comfort and a pleasant view - this is what the 90-degree star diagonal mirror is made for. Even if your starter telescope is pointed vertically into the sky, you don't need to lie down underneath it to see anything. Instead, simply look in comfortably from the side and enjoy the view. But it's not only at night that we should look skywards. For only during the day you can see a very special star: our Sun. So put the solar filter in front of the lens and safely look at sunspots and granulation on the Sun. CAUTION: Never point the telescope at the Sun without the solar filter! Would you like to share your discoveries with friends and family? Then take your first steps in astrophotography right away - and those are done in no time with the smartphone camera adapter for your beginner's telescope. The Moon, Sun, planets, open star clusters and globular clusters always make a good picture. Discover what our night sky has to offer with the BRESSER Sirius 70/900 AZ refracting telescope. FEATURES Beginner’s telescope for astronomy 70 mm aperture; 900 mm focal length Achromatic refractor type Fraunhofer Ideal for observing the Sun, Moon, planets and star clusters Height-adjustable tripod with azimuthal mount Easy to use, also very suitable for children Focal ratio F/12.9, therefore very sharp image and high contrast Two eyepieces and one Barlow lens with 31.7 mm (1.25 inch) sockets for different magnifications Safe solar observation with the included solar filter Entry into astrophotography with smartphone camera adapter SCOPE OF DELIVERY Starter lens telescope Aluminium tripod Azimuthal mount Eyepieces: 4 mm and 20 mm (1.25 inch socket) Barlow lens 3x (1.25 inch socket) Star diagonal mirror LED illuminated dot finder Solar filter Smartphone camera adapter Accessory tray Astronomy software via download Instruction manual

Available

£146.00*
Vixen trigger cable COM for Canon, Fujifilm, Olympus, Pentax, Samsung
This release cable was developed for taking time-lapse recordings with the POLARIE U Star Tracker and a DSLR camera. In combination with an app specially developed for the POLARIE U, you can simply set up an exposure control via WIFI, controlling your exposures very easily using your smartphone.REQUIREMENTPOLARIE U Star Tracker, smartphone with the POLARIE U Control app and release cable for your cameraPROPERTIESLocking cable for Canon, Fujifilm, Olympus, Pentax, SamsungConnection to the POLARIE U: 2.5 mm stereo mini plugConnection to the camera: 2.5 mm stereo mini plugCoiled cable length: 20 cm to 50 cmWeight: 26 gWHAT'S INCLUDED:Release cable

Available

£16.90*