Embark on the adventure of astronomy: with the entry-level telescope including extensive astronomy accessories , starting out in celestial observation is child's play.
- Complete set of telescope, tripod, mount and accessories
- Easy-to-use refracting telescope for beginners
- Telescope aperture: 70 mm / focal length: 900 mm
- Ideal for Sun, Moon, planets and star clusters
- Astrophotos possible with smartphone
- Plenty of accessories to get started straight away
- With safe lens solar filter
Product number:
11030
Former product no.:
4512001
Note: Our item numbers have been updated.
You can continue to search for products using either the previous or the new item number.
EAN:
4007922001753
WEEE-Reg.-Nr.:
DE 34323861
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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
Product information "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
SCOPE OF DELIVERY
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
| Angular resolution (arc seconds): | 1.9 |
|---|---|
| Batteries included: | Yes |
| Batteries required: | Yes |
| Colour: | Carbon Fiber |
| Compass: | No |
| ED glass: | No |
| Extended warranty (years): | 5 |
| Field of application [Telescopes]: | Land observation , Lunar observation , Planetary observation , Solar observation |
| Focal length (mm): | 900 |
| Magnification from: | 45 |
| Magnification up to: | 675 |
| Material: | Aluminium |
| Material tripod 3): | Aluminium |
| Maximum recommended magnification: | 140 |
| Mirror/Lens diam. (mm): | 70 |
| Mount Type [Telescopes]: | Azimutal |
| Optical design: | Achromatic Refractor |
| Power supply unit included: | No |
| Product Family [Telescopes]: | Refractor telescope |
| Reticle: | No |
| Software: | Stellarium Astronomy software |
| Target Group [Telescopes]: | Beginners |
| Tripod height adjustment: | Yes |
| Tube diameter (mm): | 90 |
| Tube length (mm): | 900 |
Product and safety instructions
Manufacturer:
Bresser GmbH, Gutenbergstraße 2, 46414 Rhede
Contact:
www.bresser.de
www.bresser.de
Warning notes
- Check the solar filter before every solar observation and ensure that it is not damaged. Hold it against a strong light source to detect any possible cracks and/or holes. Do not use the telescope for solar observation, even if the solar filter is only slightly damaged. In this case, contact the manufacturer for the appropriate replacement parts.
- Always use the included solar filter when observing the sun. Make sure it is correctly attached to the telescope according to the instructions. The use of the solar filter is only intended in connection with this telescope.
- 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.
- Check the secure fit of the solar filter before each solar observation. An accidental detachment from the objective opening can lead to immediate and permanent eye damage and blindness.
- If the solar filter cannot be securely attached to the tube, improve the fit by placing several self-adhesive felt strips or similar between the solar filter and the objective opening. Never use the solar filter if it cannot be properly mounted on the telescope. In such a case, always contact our customer service first.
- Be extremely cautious when observing the sun. A brief look through the unprotected optics will immediately cause severe eye damage, potentially leading to complete blindness.
- Children should not look at the sun through the telescope, even with the filter properly installed. Never leave children unsupervised.
- 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 observe the sun after eye surgeries or other eye conditions without prior medical consultation.
- Wrinkles/creases in the film are normal and do not indicate a product defect.
- Do not expose the device to high temperatures.
- BATTERY WARNING AND SAFETY Safe handling and use of batteries and accumulators Read and follow these instructions before using the battery or accumulator. To the extent permitted by law, failure to comply with these warnings and instructions may result in any damage caused to your product not being covered by the warranty. In this document, the term "batteries" also includes accumulators. Follow these instructions to ensure optimal safety and performance: DO NOT use counterfeit batteries in products. Only use supplied batteries. Use the battery SOLELY for its intended purpose. Keep batteries out of the reach of children and pets. DO NOT use batteries that appear to be damaged, swollen, or modified. Do not use batteries that are leaking, emitting a smell, swollen, melted, or showing dents, rust, cracks, or scratches. The battery should NOT be disassembled, crushed, punctured, shredded, or otherwise tampered with. The battery should NOT be exposed to liquids. Liquid may penetrate the battery's circuits, causing corrosion and compromising its safety. A wet or damp battery should NOT be dried with a device or heat source (e.g., hairdryer or microwave). The device or battery should NOT be placed near a heat source or direct sunlight. High temperatures can cause the battery to swell, leak, or malfunction. Examples include placing the device near a radiator, stove, kitchen appliance, iron, fireplace, or inside a vehicle or next to a window in direct sunlight. The battery should NOT come into contact with metal objects. If metal objects such as jewelry come into prolonged contact with the battery terminals, the battery may become very hot or catch fire. The battery should NOT be stored together with hazardous or flammable materials. Store the battery in a cool, dry, and well-ventilated area. The battery should NOT be inserted incorrectly when charging. MAKE SURE the battery compartment is empty, dry, and free of dirt before inserting the battery. The battery should NOT be charged in direct sunlight or at extreme temperatures. The battery must be charged at room temperature, typically between 20 °C and 26 °C (68 °F-79 °F). Charging may be temporarily suspended if the battery temperature exceeds 60 °C (140 °F). If the battery is hot but the temperature is under 60 °C (140 °F), the battery will still charge, but more slowly than usual. Avoid dropping the battery or the product with the battery inside. If dropped onto a hard surface, the battery or product may be damaged. If you suspect the battery might be damaged, replace it. Never leave your mobile hotspot plugged into the power supply for more than 24 hours to charge. Let the battery drain and then recharge it. Keeping your mobile hotspot plugged into a charger without draining the battery can damage the battery/device or affect performance. If a battery shows a significantly shorter runtime than when purchased, it has reached the end of its reasonable lifespan. We recommend replacing it. For optimal results and performance, batteries should be replaced after 12 months or earlier depending on usage. Follow local regulations for the disposal of used batteries. Do not throw the battery into fire or water.
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Accessories
OCULUM VERLAG - Fernrohr-Führerschein in 4 Schritten (GERMAN)
£19.90*
Please note that this astronomy book for beginners is only available in German.
Available
OCULUM VERLAG - Hobby-Astronom in 4 Schritten (German edition)
£14.90*
Please note that this astronomy book for beginners is only available in German language.
Available
BRESSER Amici Prism 90° 31.7mm/1.25"
£49.00*
An amici prism allows for a comfortable 90° viewing position and creates an erect image without left-right reversal. This makes it especially suitable for nature observations but it can also be very helpful with astronomical observations. Particularly beginners may find it easier to orientate in the sky when they compare the view through the telescope with what they can see with their naked eyes.With this amici prism an astronomical telescope can be used as a powerful spotting scope.Suitable for refractor telescopes as well as Maksutov-Cassegrain style telescopes with 1,25" visual back.FEATUREScomfortable eye relief for refractor telescopes90°- viewing position and image without left-right reversalastronomical telescope turns to a powerful spotting scope1,25" visual backfully multicoated prismSCOPE OF DELIVERYAmici Prism 90° 31.7mm/1.25"
Available
Vixen NPL 50° Eyepiece 15mm (1.25'')
£49.00*
The 2-group 4-element Plossl optical design of the NPL series eyepieces delivers flat and clear images with good color correction. The lenses are fully multi-coated for high light transmission.
FEATURES
Push-fit Size: 31.7 mm
Apparent field of view: 50°
Eye relief: 11 mm
Weight: 100 g
WHAT'S INCLUDED
1x Eyepiece 15 mm (1.25'')
Available
Vixen NPL 50° Eyepiece 30mm (1.25'')
£58.00*
The 2-group 4-element Plossl optical design of the NPL series eyepieces delivers flat and clear images with good color correction. The NPL20, NPL25, NPL30 and NPL40 eyepieces employ twist-up eye-guards for viewing comfort. The lenses are fully multi-coated for high light transmission.
FEATURES
Push-fit Size: 31.7 mm
Apparent field of view: 50°
Eye relief: 24 mm
Weight: 120 g
WHAT'S INCLUDED
1x Eyepiece 30 mm (1.25'')
Available
BRESSER 10mm Plössl eyepiece 31,7mm/1,25"
£29.00*
BRESSER 10mm Plössl Eyepiece 1,25" (31,7mm)
Since years a well known and approved Plössl eyepiece. Ideal to improve the performance of your telescopes for a low budget price.
All the BRESSER Plössl eyepieces provide sharp and high-contrast images because of the 4-lens design. All lenses have fully-multicoated surfaces which prevents reflections efficiently. Every eyepiece is equipped with a foldable rubber eyecup to avoid straylight from the sides and the inner eyepiece shaft is carefully blackened as well. Housing and eyepiece shaft are completely made from metal - no plastic is used. Filter thread for use with colour- and nebular filters is also available.
All these Plössl eyepieces offer a much better image quality than all the very simple made Kellner and Huygens eyepieces.
FEATURES
Focal length: 10 mm
Field of view: 50°
Lens-Design: 4 lenses in 2 groups , fully-multicoated
Housing material: completely made from metal
Rubber eyecup: YES, foldable
Filter thread: YES
Storage: Twist-pack
SCOPE OF DELIVERY
BRESSER Plössl eyepiece with rubber eyecup
Twist-pack
Currently unavailable
BRESSER 6.5mm Plössl eyepiece 31,7mm/1,25"
£27.00*
BRESSER 6.5mm Plössl Eyepiece 1,25" (31,7mm)
Since years a well known and approved Plössl eyepiece. Ideal to improve the performance of your telescopes for a low budget price.
All the BRESSER Plössl eyepieces provide sharp and high-contrast images because of the 4-lens design. All lenses have fully-multicoated surfaces which prevents reflections efficiently. Every eyepiece is equipped with a foldable rubber eyecup to avoid straylight from the sides and the inner eyepiece shaft is carefully blackened as well. Housing and eyepiece shaft are completely made from metal - no plastic is used. Filter thread for use with colour- and nebular filters is also available.
All these Plössl eyepieces offer a much better image quality than all the very simple made Kellner and Huygens eyepieces.
FEATURES
Focal length: 6.5 mm
Field of view: 50°
Lens-Design: 4 lenses in 2 groups , fully-multicoated
Housing material: completely made from metal
Rubber eyecup: YES, foldable
Filter thread: YES
Storage: Twist-pack
SCOPE OF DELIVERY
BRESSER Plössl eyepiece with rubber eyecup
Twist-pack
Currently unavailable
Skip product gallery
Customers also bought
OCULUM VERLAG - Fernrohr-Führerschein in 4 Schritten (GERMAN)
£19.90*
Please note that this astronomy book for beginners is only available in German.
Available
OCULUM VERLAG - Hobby-Astronom in 4 Schritten (German edition)
£14.90*
Please note that this astronomy book for beginners is only available in German language.
Available
OLIVIA VERLAG - Julius forscht im Weltall (GERMAN)
£15.00*
Please note: This book is written in German language
Currently unavailable
BRESSER 40mm Plössl eyepiece 31,7mm/1,25"
£35.00*
BRESSER 40mm Plössl Eyepiece 1,25" (31,7mm)
Since years a well known and approved Plössl eyepiece. Ideal to improve the performance of your telescopes for a low budget price.
All the BRESSER Plössl eyepieces provide sharp and high-contrast images because of the 4-lens design. All lenses have fully-multicoated surfaces which prevents reflections efficiently. Every eyepiece is equipped with a foldable rubber eyecup to avoid straylight from the sides and the inner eyepiece shaft is carefully blackened as well. Housing and eyepiece shaft are completely made from metal - no plastic is used. Filter thread for use with colour- and nebular filters is also available.
All these Plössl eyepieces offer a much better image quality than all the very simple made Kellner and Huygens eyepieces.
FEATURES
Focal length: 40 mm
Field of view: 46°
Lens-Design: 4 lenses in 2 groups , fully-multicoated
Housing material: completely made from metal
Rubber eyecup: YES, foldable
Filter thread: YES
Storage: Twist-pack
SCOPE OF DELIVERY
BRESSER Plössl eyepiece with rubber eyecup
Twist-pack
Available
BRESSER Erecting Lens 1.5x (1.25")
£21.00*
The BRESSER Erecting Lens creates an upright and right reading image. Furthermore, it increases the magnification by the factor 1.5. The erecting lens serves as a helpful accessory for nature observation or for astronomy beginners and is used for refractors (lens telescopes). Not recommeded to use with reflectors (newtonian telescopes).
FEATURESEyepiece connection diameter: 31.7mm (1.25")Magnification: 1.5xSCOPE OF DELIVERYErecting Lens 1.5x (1.25")
Available
BRESSER 10mm Plössl eyepiece 31,7mm/1,25"
£29.00*
BRESSER 10mm Plössl Eyepiece 1,25" (31,7mm)
Since years a well known and approved Plössl eyepiece. Ideal to improve the performance of your telescopes for a low budget price.
All the BRESSER Plössl eyepieces provide sharp and high-contrast images because of the 4-lens design. All lenses have fully-multicoated surfaces which prevents reflections efficiently. Every eyepiece is equipped with a foldable rubber eyecup to avoid straylight from the sides and the inner eyepiece shaft is carefully blackened as well. Housing and eyepiece shaft are completely made from metal - no plastic is used. Filter thread for use with colour- and nebular filters is also available.
All these Plössl eyepieces offer a much better image quality than all the very simple made Kellner and Huygens eyepieces.
FEATURES
Focal length: 10 mm
Field of view: 50°
Lens-Design: 4 lenses in 2 groups , fully-multicoated
Housing material: completely made from metal
Rubber eyecup: YES, foldable
Filter thread: YES
Storage: Twist-pack
SCOPE OF DELIVERY
BRESSER Plössl eyepiece with rubber eyecup
Twist-pack
Currently unavailable
