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LUNT B1200d1 Blocking-Filter in 1.25 inch zenith mirror diagonal

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 and safety instructions


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!
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Accessories

LUNT LS50FHa H-alpha double-stack solar filter
50mm H-alpha double-stack solar filter, for all LS50FHa filter-systems and LS60THa/LS60MT telescopes.This double-stack Etalon is compatible to all Lunt Solar Systems LS50FHa filter-systems and LS60THa / LS60MT telescopes. Adding this additional double-stack Etalon system will reduce the bandwidth to ~<0.55 Angstrom (dependent upon used telescope). So you will have much more contrast and more details on the sun will be visible.Without blocking filter! Only for use as double-stack filter, or together with a additional available blocking filter. If the filter is used only single stacked together with a optional blocking filter, then the bandwidth is <0.75 Angstrom.FEATURESAperture: 50 mmNo central obstructionBandwidth double stacked: <0,55 AngstromTuning: tiltable EtalonHousing diameter: 95 mmLength: 73 mmWeight: 0.7 kgFront thread: M90x1 female threadRear thread: M90x1 male threadSCOPE OF DELIVERYLS50FHa solar filterTransport caseInstruction manual

Available

€1,949.00*
LUNT LS60FHa H-alpha double-stack solar filter
60mm H-alpha double-stack solar filter, for all LS60FHa filter-systems and LS60THa/LS60MT telescopes.This double-stack Etalon is compatible to all Lunt Solar Systems LS60FHa filter-systems and LS60THa / LS60MT telescopes. Adding this additional double-stack Etalon system will reduce the bandwidth to ~<0.55 Angstrom (dependent upon used telescope). So you will have much more contrast and more details on the sun will be visible.Without blocking filter! Only for use as double-stack filter, or together with a additional available blocking filter. If the filter is used only single stacked together with a optional blocking filter, then the bandwidth is <0.75 Angstrom.FEATURESAperture: 60 mmNo central obstructionBandwidth double stacked: <0,55 AngstromTuning: tiltable EtalonHousing diameter: 95 mmLength: 85 mmWeight: 0.85 kgFront thread: M90x1 female threadRear thread: M90x1 male threadSCOPE OF DELIVERYLS60FHa solar filterTransport caseInstruction manual

Available

€3,398.00*
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LUNT LS100FHa H-alpha double-stack solar filter
100mm H-alpha double-stack solar filter, for all LS100FHa filter-systems and LS100THa telescopes.This double-stack Etalon is compatible to all Lunt Solar Systems LS100FHa filter-systems.Also the LS100THa H-alpha solar telescopes can be very easily double-stacked by using this 100mm double-stack filter. This combination offers high quality double-stacking to the observer.Adding this additional double-stack Etalon system will reduce the bandwidth to ~<0.55 Angstrom. So you will have much more contrast and more details on the sun will be visible.Please note: The LS100FHa double-stack filter is only compatible with the old LS100THa H-alpha telescopes, but not with the new LS100MT multipurpose telescopes!Without blocking filter! Only for use as double-stack filter, or together with a additional available blocking filter. If the filter is used only single stacked together with a optional blocking filter, then the bandwidth is <0.7 Angstrom.FEATURESAperture: 100 mmBandwidth double stacked: <0.55 AngstromTuning: tiltable EtalonHousing diameter: 162 mmLength: 101 mmWeight: 2.75 kgFront thread: M120x1.5 female threadRear thread: M120x1.5 male threadSCOPE OF DELIVERYLS100FHa solar filterTransport caseInstruction manual

Currently not available

€7,990.00* €10,990.00* (27.3% saved)
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LUNT LS40THa/B500 H-alpha solar telescope
Solar observation in H-Alpha: prominences, filaments, flares ... the most spectacular way to see the Sun - easy and affordable with the LS40THa.Complete H-alpha solar telescope with 40mm aperture, <0.7 Angstrom bandwidth, B500 blocking-filter, and Helical focuser.The LS40THa/B500 is a complete telescope for observing the sun in H-alpha, with 40mm aperture (no central obstruction) and 400mm 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 Etalon with mechanical tilt-tuning provides <0.7 Angstrom bandwidth.Fine adjustment is achieved with a 1.25 inch Helical focuser. Blocking-filter is the B500, this is good for visual observation of the sun. The star diagonal in which the blocking filter is installed, is equipped as standard for 1.25 inch eyepiece connection.The easy handling makes this telescope ideal for starting H-Alpha solar observation. Due to its compact dimensions it is also a good travel telescope for the experienced solar observers.The LS40THa telescopes are available with choice of B500, B600 or B1200 blocking filters. The larger blocking filters provide less edge obstruction and a larger field of view for visual observation and photography. Please note that these telescopes have only a very small back focus and therefore photography is difficult. We recommend special astro cameras for photography, which have a very short distance to the sensor, such as the BRESSER Full HD camera item number 4959050.FEATURESAperture: 40mm (no central obstruction, 2-lens refractor)Focal length: 400mmBandwidth: <0.7 AngstromTuning: mechanical tilt-tuningBlocking filter: B500 with 1.25 inch connectionFocuser: Helical focuserDovetail bar at standard GP-level1/4-20 tapped base (standard thread for photo-tripods)Sol-Searcher includedWeight: 1.2kgLength: 41cmSCOPE OF DELIVERYLS40THa Solar TelescopeB500 blocking filter in star-diagonal housing1.25 inch Helical focuserDovetail bar (GP level)Sol-SearcherInstruction manual

Currently not available

€920.00* €1,398.00* (34.19% saved)
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LUNT LS50THa/B400PT 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 B400 blocking filter is installed inside the star diagonal. The B400 is good for visual 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.FEATURESAperture: 50  mmFocal Length: 350 mmBandwidth: <0.75 AngstromTuning: air-pressure tuning system "Pressure-Tuner"Blocking Filter: B400non-rotating Helical focuserTube-ring with 1/4-20 tapped base (standard thread for photo-tripods)Length: 37cmWeight: 2.1kgSCOPE OF DELIVERYLS50THa H-alpha Solar TelescopeB400 Blocking Filter in star-diagonalPressure-TunerTube ring with 1/4-20 connection for mounting on photo-tripodsnon-rotating Helical focuserInstruction manual

Available

€1,290.00* €1,698.00* (24.03% saved)
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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.FEATURESAperture: 50  mmFocal Length: 350 mmBandwidth: <0.75 AngstromTuning: air-pressure tuning system "Pressure-Tuner"Blocking Filter: B600non-rotating Helical focuserTube-ring with 1/4-20 tapped base (standard thread for photo-tripods)Length: 37cmWeight: 2.1kgSCOPE OF DELIVERYLS50THa H-alpha Solar TelescopeB600 Blocking Filter in star-diagonalPressure-TunerTube ring with 1/4-20 connection for mounting on photo-tripodsnon-rotating Helical focuserInstruction manual

Available

€1,270.00* €1,898.00* (33.09% saved)
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LUNT B1200d2 Blocking-Filter in 2 inch zenith mirror diagonal
Blocking-filter in 90° zenith mirror diagonal, for telescopes up to 1080mm focal length, and with 2 inch (50.8mm) focuser. Can only be used together with a LUNT H-alpha filter, or with a LUNT H-alpha telescope!Lunt Solar Systems offers blocking-filters in different sizes, and alternatively in 90° star-diagonal housings or straight extension tubes. You can choose what blocking-filter you will use at your LUNT H-alpha Etalon system.The B1200d2 is installed in a 90° star-diagonal housing, for 2 inch (50.8mm) focuser on the telescope side, and with T2 thread and 1.25 inch (31.7mm) eyepiece connection on the eyepiece side. The B1200d2 can be used at LUNT H-alpha systems, if the used telescope has a 2 inch focuser and up to 1080mm focal length.The blocking-filter can not be used without additional H-alpha filter system from Lunt Solar Systems! Blocking-filters are absolutely required for the safety and performance of H-alpha telescopes for solar observing. Lunt Solar Systems blocking-filters contain a unique filter system. We can only warranty safety or performance, if blocking-filter is paired with a H-alpha filter or H-alpha telescope of Lunt Solar Systems.At the tab ''Accessories'' you will find H-Alpha telescopes and filters with which this blocking filter can be combined.FEATURESBlocking-filter only usable at additional H-alpha filter systemFilter diameter: 12mmUsable at telescopes up to 1080mm focal90° star-diagonal housing2 inch slide tube for 2 inch focuserConnection for 1.25 inch eyepiecesT2 thread for camera connectionSCOPE OF DELIVERYBlocking-filter B1200d2 in 90° star-diagonal for 2 inch focuser

Available

€890.00* €1,298.00* (31.43% saved)
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LUNT B1800d1 Blocking-Filter in 1.25 inch zenith mirror diagonal
Blocking-filter in 90° zenith mirror diagonal, for telescopes up to 1620mm focal length, and with 1.25 inch (31.7mm) focuser. Can only be used together with a LUNT H-alpha filter, or with a LUNT H-alpha telescope!Lunt Solar Systems offers blocking-filters in different sizes, and alternatively in 90° star-diagonal housings or straight extension tubes. You can choose what blocking-filter you will use at your LUNT H-alpha Etalon system.The B1800d1 is installed in a 90° star-diagonal housing, for 1.25 inch (31.7mm) focuser on the telescope side, and with T2 thread and 1.25 inch eyepiece connection on the eyepiece side. The B1800d1 can be used at LUNT H-alpha systems, if the used telescope has a 1.25 inch focuser and up to 1620mm focal length.The blocking-filter can not be used without additional H-alpha filter system from Lunt Solar Systems! Blocking-filters are absolutely required for the safety and performance of H-alpha telescopes for solar observing. Lunt Solar Systems blocking-filters contain a unique filter system. We can only warranty safety or performance, if blocking-filter is paired with a H-alpha filter or H-alpha telescope of Lunt Solar Systems.At the tab "Accessories" you will find H-Alpha telescopes and filters with which this blocking filter can be combined.FEATURESBlocking-filter only usable at additional H-alpha filter systemFilter diameter: 18mmUsable at telescopes up to 1620mm focal90° star-diagonal housing1.25 inch slide tube for 1.25 inch focuserConnection for 1.25 inch eyepiecesT2 thread for camera connectionSCOPE OF DELIVERYBlocking-filter B1800d1 in 90° star-diagonal for 1.25 inch focuser

Available

€1,290.00* €1,999.00* (35.47% saved)
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LUNT B1200s Blocking-Filter in extension tube
Blocking-filter in straight extension tube, for telescopes up to 1080mm focal length. Can only be used together with a LUNT H-alpha filter, or with a LUNT H-alpha telescope!Lunt Solar Systems offers blocking-filters in different sizes, and alternatively in 90° star-diagonal housings or straight extension tubes. You can choose what blocking-filter you will use at your LUNT H-alpha Etalon system.The B1200s is installed in a straight extension tube, for 1.25 inch (31.7mm) and 2 inch (50.8mm) focuser on the telescope side, and with T2 thread and 1.25 inch eyepiece connection on the eyepiece side. The B1200s can be used at LUNT H-alpha systems, if the used telescope has up to 1080mm focal length.The blocking-filter can not be used without additional H-alpha filter system from Lunt Solar Systems! Blocking-filters are absolutely required for the safety and performance of H-alpha telescopes for solar observing. Lunt Solar Systems blocking-filters contain a unique filter system. We can only warranty safety or performance, if blocking-filter is paired with a H-alpha filter or H-alpha telescope of Lunt Solar Systems.At the tab "Accessories" you will find H-Alpha telescopes and filters with which this blocking filter can be combined.FEATURESBlocking-filter only usable at additional H-alpha filter systemFilter diameter: 12mmUsable at telescopes up to 1080mm focalIn straight extension tubeFor 1.25 inch and 2 inch focuserConnection for 1.25 inch eyepiecesT2 thread for camera connectionSCOPE OF DELIVERYBlocking-filter B1200s in straight extension tube

Available

€890.00* €1,299.00* (31.49% saved)
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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

Available

€279.00* €349.00* (20.06% saved)
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LUNT B600d1 Blocking-Filter in 1.25 inch zenith mirror diagonal
Blocking-filter in 90° zenith mirror diagonal, for telescopes up to 540mm focal length, and with 1.25 inch (31.7mm) focuser. Can only be used together with a LUNT H-alpha filter, or with a LUNT H-alpha telescope!Lunt Solar Systems offers blocking-filters in different sizes, and alternatively in 90° star-diagonal housings or straight extension tubes. You can choose what blocking-filter you will use at your LUNT H-alpha Etalon system.The B600d1 is installed in a 90° star-diagonal housing, for 1.25 inch (31.7mm) focuser on the telescope side, and with T2 thread and 1.25 inch eyepiece connection on the eyepiece side. The B600d1 can be used at LUNT H-alpha systems, if the used telescope has a 1.25 inch focuser and up to 540mm focal length.The blocking-filter can not be used without additional H-alpha filter system from Lunt Solar Systems! Blocking-filters are absolutely required for the safety and performance of H-alpha telescopes for solar observing. Lunt Solar Systems blocking-filters contain a unique filter system. We can only warranty safety or performance, if blocking-filter is paired with a H-alpha filter or H-alpha telescope of Lunt Solar Systems.At the tab "Accessories" you will find H-Alpha telescopes and filters with which this blocking filter can be combined.FEATURESBlocking-filter only usable at additional H-alpha filter systemFilter diameter: 6mmUsable at telescopes up to 540mm focal90° star-diagonal housing1.25 inch slide tube for 1.25 inch focuserConnection for 1.25 inch eyepiecesT2 thread for camera connectionSCOPE OF DELIVERYBlocking-filter B600d1 in 90° star-diagonal for 1.25 inch focuser

Currently not available

€490.00* €699.00* (29.9% saved)
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LUNT LS40THa/B1200 H-alpha solar telescope
Solar observation in H-Alpha: prominences, filaments, flares ... the most spectacular way to see the Sun - easy and affordable with the LS40THa.Complete H-alpha solar telescope with 40mm aperture, <0.7 Angstrom bandwidth, B1200 blocking-filter, and Helical focuser.The LS40THa/B1200 is a complete telescope for observing the sun in H-alpha, with 40mm aperture (no central obstruction) and 400mm 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 Etalon with mechanical tilt-tuning provides <0.7 Angstrom bandwidth.Fine adjustment is achieved with a 1.25 inch Helical focuser. Blocking-filter is the B1200, this is excellent for visual observation of the sun. The star diagonal in which the blocking filter is installed, is equipped as standard for 1.25 inch eyepiece connection.The easy handling makes this telescope ideal for starting H-Alpha solar observation. Due to its compact dimensions it is also a good travel telescope for the experienced solar observers.The LS40THa telescopes are available with choice of B500, B600 or B1200 blocking filters. The larger blocking filters provide less edge obstruction and a larger field of view for visual observation and photography. Please note that these telescopes have only a very small back focus and therefore photography is difficult. We recommend special astro cameras for photography, which have a very short distance to the sensor, such as the BRESSER Full HD camera item number 4959050.FEATURESAperture: 40mm (no central obstruction, 2-lens refractor)Focal length: 400mmBandwidth: <0.7 AngstromTuning: mechanical tilt-tuningBlocking filter: B1200 with 1.25 inch connectionFocuser: Helical focuserDovetail bar at standard GP-level1/4-20 tapped base (standard thread for photo-tripods)Sol-Searcher includedWeight: 1.2kgLength: 41cmSCOPE OF DELIVERYLS40THa Solar TelescopeB1200 blocking filter in star-diagonal housing1.25 inch Helical focuserDovetail bar (GP level)Sol-SearcherInstruction manual

Available

€1,480.00* €1,998.00* (25.93% saved)
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LUNT B600d2 Blocking-Filter in 2 inch zenith mirror diagonal
Blocking-filter in 90° zenith mirror diagonal, for telescopes up to 540mm focal length, and with 2 inch (50.8mm) focuser. Can only be used together with a LUNT H-alpha filter, or with a LUNT H-alpha telescope!Lunt Solar Systems offers blocking-filters in different sizes, and alternatively in 90° star-diagonal housings or straight extension tubes. You can choose what blocking-filter you will use at your LUNT H-alpha Etalon system.The B600d2 is installed in a 90° star-diagonal housing, for 2 inch (50.8mm) focuser on the telescope side, and with T2 thread and 1.25 inch (31.7mm) eyepiece connection on the eyepiece side. The B600d2 can be used at LUNT H-alpha systems, if the used telescope has a 2 inch focuser and up to 540mm focal length.The blocking-filter can not be used without additional H-alpha filter system from Lunt Solar Systems! Blocking-filters are absolutely required for the safety and performance of H-alpha telescopes for solar observing. Lunt Solar Systems blocking-filters contain a unique filter system. We can only warranty safety or performance, if blocking-filter is paired with a H-alpha filter or H-alpha telescope of Lunt Solar Systems.At the tab "Accessories" you will find H-Alpha telescopes and filters with which this blocking filter can be combined.FEATURESBlocking-filter only usable at additional H-alpha filter systemFilter diameter: 6mmUsable at telescopes up to 540mm focal90° star-diagonal housing2 inch slide tube for 2 inch focuserConnection for 1.25 inch eyepiecesT2 thread for camera connectionSCOPE OF DELIVERYBlocking-filter B600d2 in 90° star-diagonal for 2 inch focuser

Available

€490.00* €698.00* (29.8% saved)