LUNT LS50THa/B600PT H-alpha solar telescope

50mm solar telescope for observing prominences & more with the advanced Pressure-Tuner system

  • Special telescope for the observation of the sun
  • Absolutely safe, no danger to the eyes
  • Shows protuberances & more details on the sun
  • For the visual observation of the sun
  • Bandwidth less than 0.75 Angstrom
  • With comfortable air pressure tuning
  • Large B600 blocking filter in zenith mirror

£1,898.00*

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Product number: 0551156
EAN: 4007922011677
WEEE-Reg.-Nr.: DE 34323861

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!
Product information "LUNT LS50THa/B600PT H-alpha solar telescope"
A very compact, complete telescope for observing the sun in H-alpha light.

The LS50THa solar telescope offers 50 mm free aperture, 350 mm focal length, and provides a bandwidth of <0.75 Angstrom. The telescope is fitted as standard with the air-pressure tuning system "Pressure-Tuner", the Etalon is safely installed inside the telescope. Prominences and surface detail can quickly be viewed spontaneously. This very portable system is an ideal travel companion for wherever you go.

A B600 blocking filter is installed inside the star diagonal. The B600 offers a larger field of view than the smaller B400 and is very good for visual solar observing. Focusing is achieved by a non-roting Helical focuser.

Please note that there is only a small back-focus at this telescope, therefore solar-imaging is very difficult. The LS50THa is designed for visual solar observing. We recommend for imaging the 60mm telescopes of the LS60MT series.

Also double-stacking with a bandwidth of only <0.5 Angstrom is possible by using the additional available LS50C filter (0550210). This filter threads directly onto the LS50THa telescope. Double-stacking will provide much more contrast, and more details on the sun will become visible.

FEATURES
  • Aperture: 50  mm
  • Focal Length: 350 mm
  • Bandwidth: <0.75 Angstrom
  • Tuning: air-pressure tuning system "Pressure-Tuner"
  • Blocking Filter: B600
  • non-rotating Helical focuser
  • Tube-ring with 1/4-20 tapped base (standard thread for photo-tripods)
  • Length: 37cm
  • Weight: 2.1kg
SCOPE OF DELIVERY
  • LS50THa H-alpha Solar Telescope
  • B600 Blocking Filter in star-diagonal
  • Pressure-Tuner
  • Tube ring with 1/4-20 connection for mounting on photo-tripods
  • non-rotating Helical focuser
  • Instruction manual
Angular resolution (arc seconds): 2.8
Aperture ratio: 7
Batteries required: false
Colour: white
Extended warranty (years): 5
Eyepiece Barrel Diameter (mm): 31.7
Field of application [Telescopes]: Solar observation
Focal length (mm): 350
Focusing system: 1.25" Helical focuser
Full width at half maximum (Angström), less then: 0.75
Material: Aluminium
Mirror/Lens diam. (mm): 50
Mount Type [Telescopes]: Optics without Mount
Net Weight total (incl. accessories) (in kg): 2.1
Telescope filter type: Solar Filter H-Alpha
Total height (mm): 100
Total length (mm): 370
Total width (mm): 170

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Produkt- und Sicherheitshinweise


Manufacturer: 
Bresser GmbH, Gutenbergstraße 2, 46414 Rhede

Contact: 
www.bresser.de


Warning notes
  • Safety instructions: There are certain dangers when observing the sun, regardless of the telescope used. Lunt-Solar-Systems places great emphasis on the safety of their products during manufacture. Your safety is the highest priority, and we ask that you carefully read the telescope manual before beginning solar observation. Please never disassemble the telescope! Never use it if it has been modified or damaged in any way! Always contact our customer service if you have any questions regarding the safety of your instrument. Never look at the sun with an unprotected eye or with a telescope not intended for solar observation! Never leave your telescope unattended while it is pointed at the sun! Other people who are unfamiliar with it might attempt to replace the block filter with another prism, unaware of how critical this filter is for safety. The components of Lunt-Solar-Systems telescopes are not interchangeable with those of other manufacturers. Lunt-Solar-Systems solar telescopes contain several different optical elements that have been precisely adjusted and mounted during manufacture. These systems require no maintenance. Never disassemble the telescope. Doing so will void the warranty, potentially leading to expensive repairs, and may cause future damage to your instrument, compromising your safety! Most Lunt-Solar-Systems telescopes and filters include a very sensitive optical component called an Etalon. These Etalons are built into the system to protect them as best as possible. Countless considerations have been made to ensure the best performance of this "heart" of every system, even under the daily stresses it inevitably faces, such as shocks and vibrations during transport or regular use. Nevertheless, it should never be dropped. Improper use of the telescope can damage the Etalon (not a warranty case) and render the system unusable until repaired. The instrument should always be stored in its original packaging or in the optional transport case (item number 0554010). Like any optical precision instrument, it should be stored in a dry environment. With proper care, you will enjoy your instrument for a lifetime!

Accessories

LUNT LS50C H-alpha double-stack filter for LS50THa
Double-stack filter for LS50THa telescopes.The bandwidth of H-alpha systems can be reduced by so-called "double-stacking". A smaller bandwidth provides much more contrast at the solar surface, thereby many more details will become visible.Double-stacking with a bandwidth of only <0.55 Angstrom is also possible at the LS50THa telescopes. Therefore Lunt Solar Systems has especially designed this LS50C double-stack filter in compact housing. The filter threads directly onto the LS50THa telescopes.FEATURESAperture: 50  mmBandwidth: <0.55 AngstromTuning: mechanical tilt-tuningHousing diameter: 85 mmLength: 70 mmWeight: 0.7 kgFront thread: M80x1 female threadRear thread: M80x1 male threadonly usable together with a LS50THa telescope!SCOPE OF DELIVERYLS50C H-alpha double-stack filterInstruction manual

£1,698.00*
LUNT LS100PS Dovetail Bar 100mm (GP level)
This dovetail plate with 100mm length is suitable for Lunt Solar Systems LS50THa, LS60THa, LS60MT, and LS80THa telescopes.The width of the dovetail is conform to the GP-level standard. Therefore it could be used at the BRESSER EXOS 1+2 mounts for example, but also at many other mounts. The telescope connecting screws are 1/4-20 inch size and they do not look out of the rail, which makes this rail a perfect match for many astronomical mounts. The distance between the screws is matched for the Lunt Solar Systems telescopes LS50THa, LS60THa, LS60MT, and LS80THa.FEATURESLength: 100mmWidth: 44mmDistance between screws: 35mmScrews thread: 1/4"-20SCOPE OF DELIVERY1 x 100mm dovetail plate2 x 1/4"-20 screws

£69.00*
LUNT LS7-21ZE Zoom Eyepiece 7.2mm - 21.5mm
Lunt Solar Systems zoom-eyepiece with variable focal length from 7.2mm to 21.5mm, with 1.25 inch (31.7mm) connection.The special of this zoom eyepiece is that the optical layout offers highest quality views of the sun, but also on nightsky objects. LUNT minimized the reflections by using superb multicoatings and with care designed internal baffle system and blackened lens edges. The LUNT zoom-eyepiece is not the widest field zoom-eyepiece on the market, LUNT prefered best performance over widest field. The sun and stars are perfect pin point across the entire field of view without any visible distortion. The LUNT zoom-eyepiece is almost parfocal, from one end to the other end of the zooming way you need only 0.5mm to refocuse. The LUNT zoom-eyepiece has a very nice height adjustable eyeguard to protect your eye against day light reflections and to help you to find the perfect eye position.Please note that these eyepieces are only accessories for existing solar telescopes or filters when observing the sun. Solar observation alone with these eyepieces without additional solar filters is not possible!FEATURESFocal length: 7.2mm - 21.5mm continuously adjustableBarrel size: 1.25 inch (31,7mm)Diameter: 47mmHeight: 82mmWeight: 170gEye relief: 15mmLenses / Groups: 7 lenses / 4 GroupsField of view: 53° at 7.2mm - 40° at 21.5mmSCOPE OF DELIVERYLUNT Zoom Eyepiece 7.2mm - 21.5mm

£349.00*
LUNT Sol Searcher
Sol-Searcher for installing on all solar telescopes of Lunt Solar Systems. The tube rings of the LUNT solar telescopes are prepared for the mounting of this Sol-Searcher."I can't find the Sun!" sounds funny. However, the Sun is tricky to find in a properly filtered telescope, and you don't ever want to chance a direct gaze, let alone a magnified image of it.This Sol-Searcher is the safe and easy way to find the Sun. It is absolutely safe since you don't look through Sol-Searcher, you look at it. The aperture acts as a "pinhole" which projects an image of the Sun on to the 1/4" translucent "screen." This screen can be viewed from either side. Simply move your scope until the Sun's image is centered on the screen and the Sun will be in the eyepiece's field of view.The solar telescopes from Lunt Solar Systems are fitted for installing this Sol-Searcher. Only at the LS130MT and LS152THa telescopes the additionally adapter 0554302 will be needed.SCOPE OF DELIVERYTeleVue Sol-SearcherScrewsHexagon wrench

£59.00*
LUNT Transport Case for LS50THa and LS40THa
This transport case is suitable for all 50mm telescopes of the LS50THa series, and also for all 40mm telescopes of the LS40THa series.Foam not included! The foam of the LS50THa or LS40THa telescope boxes falls into place to this transport case.FEATURESTransport case dimensions: 48 x 28 x 18 cmSCOPE OF DELIVERYTransport Case for LS50THa and LS40THa telescopes(Telescope and foam not included!)

£139.00*
LUNT HAT solar hat with neck flap
Keep your head covered and prevent sunburn while observing. UV protectant material with small pocket and clip to prevent being blown off in the wind. Cool ventilated design. Neck flap to keep your neck protected while looking through the eyepiece.SCOPE OF DELIVERYSolar Hat with neck flap

£59.00*
BRESSER Messier EXOS 1/EQ-4 Mount
Mount and Tripod. The BRESSER Messier beginners series of telescopes. Within this series you find smaller optics mounted stable on the new BRESSER EXOS 1 mount. This combination means more value for money and puts an end to flimsy beginners scopes which discourage most of the beginners due to small, under engineered mounts. The EXOS 1 with a robust stainless steel tripod bears optical tubes weighing up to 7kg stable for visual observation. The optional motor drive for the RA axis makes usage even more comfortable, so there is no need of manual tracking and the object is kept steadily in the field of view.FEATURES Stable parallactic mount with fine drive in both axes Circular bubble level for easy horizontal alignment Stable height-adjustable stainless steel tripod Retrofittable with a tracking motor for the right ascension axis Pole height scale for setting the latitude Scaled graduated circular rings for easier finding of objects by means of star atlas or planetarium software Tripod weight: 4.7 kg Mount weight: 4 kg (without counterweight) Total weight incl. counterweight: 13.2 kg SCOPE OF DELIVERYEXOS 1 German equatorial mountstainless steel tube field tripod1 x 4.5 kg counterweight

£379.00*
EXPLORE SCIENTIFIC Twilight I telescope mount with tripod
The Twilight I is a light-to-medium-duty alt-azimuth mount and tripod designed to quickly and easily accept small to medium sized refractors, such as the AR102 + AR127s or ED102mm + ED127, and of course, the ED80mm. Lightweight, fast Newtonians will also match up nicely with the Explore Scientific Twilight I mount. As long as your telescope does not exceed 18 pounds and has a Vixen-Style Universal Dovetail bar for mounting the telescope to the mount head, you are good to go. The Twilight I alt-azimuth mount head is made of powder-coated aluminum and there are worm gears on both axes. The adjustable angle head can be tilted forward or back at a 45° angle to allow more clearance for your telescope so you can point it straight up for viewing at the zenith. The Allen hex wrench for doing the mount head adjustment can be safely stored at the integrated magnetic holder.  Slow-motion control cables are attached on the vertical and horizontal axes, and are easy to turn during the night, even with gloves on, due to the over-sized knurled knobs that are attached to the end of each cable. They can be attached to either side of each axis to accommodate right or left-handed users, or different types of telescopes (e.g. refractors vs. Newtonian reflectors) for ease of adjustment. The stainless steel tripod that comes standard with the Twilight I mount has adjustable legs and a wide foot print of 42 inches, which makes the tripod more stable. A spreader bar locks against the inside of the legs to secure the tripod even further, and keep vibrations to a minimum. SCOPE OF DELIVERTwilight I Telescope MountStainless Steel Field tripod

£280.00*
1,25‘‘ Feather-Touch Focuser
Starlight-Instruments Feather-Touch focuser for very precise focusing.This Feather-Touch focuser allows very fine and precise focusing. The Feather-Touch focuser provides a M35x0.5 thread on the telescope-side, therefore it can be used directly at all telescopes that have a M35x0.5 thread. At the eyepiece-side there is a T2 thread and a 1.25" connection.For example this Feather-Touch focuser can be used at all Lunt Solar Systems LS40THa and LS50THa telescopes. Please note that this Feather-Touch focuser allows very precise focusing at this telescopes, but it will not provide more back-focus than the standard helical-focuser.Technical data:• Length: 48mm to 65mm• Travel: 17mm• Diameter: 57mm• Weight: 350gDelivered by order:• 1.25" Starlight-Instruments Feather-Touch focuser

£498.00*
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

£306.00*

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LUNT LS60MT/R&P Multipurpose Telescope OTA without Blocking Filter
Modular designed multipurpose telescope, both for observing the sun in the H-alpha wavelength, as well as for night sky observations. Easy conversion between the different applications with a few simple steps. Excellent image quality due to 2-lens ED optics with 70mm aperture for night sky observation, and 60mm usable aperture for H-alpha solar observation.With innovative air pressure tuning system and high-quality 2 inch (50.8mm) Rack&Pinion (R&P) focuser. Delivered without blocking filter, use for H-Alpha sun observation only possible with additional blocking filter!This telescope is supplied without blocking filter. We offer a wide range of additionally available blocking filters in different sizes, either mounted in a 90° star-diagonal housing or in a straight extension tube. These are all usable with this telescope.ATTENTION: Without such an additional blocking filter you cannot use this telescope for H-alpha solar observation!Solar observing in H-alpha:The LS60MT is a telescope for observing the sun in H-alpha light, with 60mm free aperture (no central obstruction) and 420mm focal length. The H-alpha wavelength is the most impressive way to observe the sun, showing protuberances at the sun's edge, filaments and flares on the surface, and much more. An internal Etalon filter achieves a bandwidth of <0.7 Angstrom with the innovative air pressure tuning system Pressure-Tuner. Tuning is done by slightly changing the air pressure in a pressure chamber inside the telescope. This changes the refractive index of the air, making it easy to tune to the H-alpha line. The pressure tuner guarantees a homogeneous image, without central obstruction, and a permanently protected Etalon without erosion. A set of collimating lenses installed in the telescope ensures best performance.Fine adjustment is achieved with a solid 2 inch Rack&Pinion focuser with 10:1 reduction.This version of the LS60MT is delivered without blocking filter. Therefore an additional blocking filter is required to use the telescope for solar observation in the H-alpha wavelength. You can choose from the wide range of Lunt Solar Systems blocking filters and decide for example if you want a blocking filter in a 90° star-diagonal housing or one in a straight extension tube.Observing the starry night sky:The H-alpha Etalon system can be removed from the telescope in a few easy steps thanks to its modular design. The 2-lens ED refractor can then be used as a normal telescope with 70mm aperture and 420mm focal length for observation and photography of the night sky. The ED Doublet lens will offer an excellent image. It can be used with a standard 2 inch zenith mirror or other accessories at the R&P focuser, the back focus is 135mm.With an additional Amici prism, the telescope can of course also be used during the day for nature and landscape observations.This makes the LS60MT, with its small dimensions and low weight, also an ideal travel telescope for all applications!More applications:With additionally available accessories the LS60MT offers even more possibilities!- Double-StackThe LS60MT telescope can optionally be upgraded with the additionally available double-stack filters LS50FHa or LS60FHa (part numbers 0550200 and 0550250). These filters will be simply screwed on the front of the LS60MT, no additional adapters are necessary. Thereby a bandwidth of <0.5 Angstrom is achieved for H-alpha solar observation. Therefore much more details on the solar surface will become visible.- Solar observing in White-LightIf the H-alpha unit has been removed, of course either a sun filter to be installed in front of the objective, or a Herschel-wedge at the focuser can be used to observe the sunspots in White-Light.- Solar observing in Ca-K wavelengthCertainly, the Ca-K filter modules from Lunt Solar Systems can also be used at the LS60MT to observe and photograph super-granulation and other effects visible in this wavelength on the sun.This makes the LS60MT a completely universal usable telescope!FEATURES2-lens ED refractor, FPL-51Aperture: 70mmUsable aperture in H-alpha: 60mm (no central obstruction)Focal length: 420mmBandwidth: internal Etalon with <0.7 AngstromTuning: air pressure tuning system Pressure-TunerSupplied without blocking filter, additionally available blocking filter absolutely necessary!Focuser: Rack&Pinion focuser with 10:1 reductionTube-ring with 1/4-20 tapped base (standard thread for photo-tripods)Weight with H-alpha unit: 3.8kgWeight without H-alpha unit: 2.6kgLength with H-alpha unit and blocking filter: 40cmLength without H-alpha unit: 31cmSCOPE OF DELIVERYLS60MT Multipurpose TelescopePressure-Tuner2 inch Rack&Pinion focuserTube ring with 1/4-20 connection for mounting on photo-tripodsTransport case (53x33x17cm)Instruction manual

£2,998.00*
LUNT LS60MT/B1200R&P Multipurpose ED Telescope for Sun + Night-Sky
Modular designed multipurpose telescope, both for observing the sun in the H-alpha wavelength, as well as for night sky observations. Easy conversion between the different applications with a few simple steps. Excellent image quality due to 2-lens ED optics with 70mm aperture for night sky observation, and 60mm usable aperture for H-alpha solar observation.With innovative air pressure tuning system, high-quality 2 inch (50.8mm) Rack&Pinion (R&P) focuser, and B1200 blocking filter.Solar observing in H-alpha:The LS60MT/B1200 is a complete telescope for observing the sun in H-alpha light, with 60mm free aperture (no central obstruction) and 420mm focal length. The H-alpha wavelength is the most impressive way to observe the sun, showing protuberances at the sun's edge, filaments and flares on the surface, and much more. An internal Etalon filter achieves a bandwidth of <0.7 Angstrom with the innovative air pressure tuning system Pressure-Tuner. Tuning is done by slightly changing the air pressure in a pressure chamber inside the telescope. This changes the refractive index of the air, making it easy to tune to the H-alpha line. The pressure tuner guarantees a homogeneous image, without central obstruction, and a permanently protected Etalon without erosion. A set of collimating lenses installed in the telescope ensures best performance.Fine adjustment is achieved with a solid 2 inch Rack&Pinion focuser with 10:1 reduction.Blocking-filter is the B1200. The B1200 is very good for visual solar observing, and also for solar imaging.The star diagonal in which the blocking filter is installed, is equipped as standard for 1.25 inch eyepieces and with a T2 camera connection.Observing the starry night sky:The H-alpha Etalon system can be removed from the telescope in a few easy steps thanks to its modular design. The 2-lens ED refractor can then be used as a normal telescope with 70mm aperture and 420mm focal length for observation and photography of the night sky. The ED Doublet lens will offer an excellent image. It can be used with a standard 2 inch zenith mirror or other accessories at the R&P focuser, the back focus is 135mm.With an additional Amici prism, the telescope can of course also be used during the day for nature and landscape observations.This makes the LS60MT, with its small dimensions and low weight, also an ideal travel telescope for all applications!More applications:With additionally available accessories the LS60MT offers even more possibilities!- Double-StackThe LS60MT telescope can optionally be upgraded with the additionally available double-stack filters LS50FHa or LS60FHa (part numbers 0550200 and 0550250). These filters will be simply screwed on the front of the LS60MT, no additional adapters are necessary. Thereby a bandwidth of <0.5 Angstrom is achieved for H-alpha solar observation. Therefore much more details on the solar surface will become visible.- Solar observing in White-LightIf the H-alpha unit has been removed, of course either a sun filter to be installed in front of the objective, or a Herschel-wedge at the focuser can be used to observe the sunspots in White-Light.- Solar observing in Ca-K wavelengthCertainly, the Ca-K filter modules from Lunt Solar Systems can also be used at the LS60MT to observe and photograph super-granulation and other effects visible in this wavelength on the sun.This makes the LS60MT a completely universal usable telescope!FEATURES2-lens ED refractor, FPL-51Aperture: 70mmUsable aperture in H-alpha: 60mm (no central obstruction)Focal length: 420mmBandwidth: internal Etalon with <0.7 AngstromTuning: air pressure tuning system Pressure-TunerBlocking filter: B1200 with 1.25 inch and T2 connectionFocuser: Rack&Pinion focuser with 10:1 reductionTube-ring with 1/4-20 tapped base (standard thread for photo-tripods)Weight with H-alpha unit: 3.8kgWeight without H-alpha unit: 2.6kgLength with H-alpha unit and blocking filter: 40cmLength without H-alpha unit: 31cmSCOPE OF DELIVERYLS60MT Multipurpose TelescopePressure-TunerB1200 blocking filter in star-diagonal housing2 inch Rack&Pinion focuserTube ring with 1/4-20 connection for mounting on photo-tripodsTransport case (53x33x17cm)Instruction manual

£4,298.00*