LUNT LS80MT/R&P Multipurpose APO Telescope OTA without Blocking Filter

This telescope can be combined with a LUNT blocking-filter as desired, such an additional blocking-filter is necessary for using the telescope

Special telescope for observing the Sun in H-alpha
Attention: Additional blocking filter required!
Also for night sky observing, modular design
2-lens ED refractor FPL-53, 80mm aperture, 560mm focal length
Observation & photography with very good image quality
Bandwidth less than 0.7 Angstrom
Solid R&P focuser with 10:1 reduction
Also for Ca-K & White-Light solar observing
Absolutely safe, no danger to the eyes

€6,398.00*

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Product number: 0551323

GTIN/EAN: 4007922069678

WEEE-Reg.-Nr.: DE 34716369

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Introduction to Astronomy

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Foundations of Celestial Mechanics

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Product information "LUNT LS80MT/R&P Multipurpose APO 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. 2-lens ED Apo telescope with FPL-53 glass, 80mm aperture and 560mm focal length - very good image quality for H-Alpha solar observation and also for observing the starry sky at night.

With innovative air pressure tuning system and good 2 inch (50.8mm) 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 LS80MT is a telescope for observing the sun in H-alpha light, with 80mm free aperture (no central obstruction) and 560mm 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 R&P focuser with 10:1 reduction.
This version of the LS80MT 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. With the additionally available conversion kit (item number 0551330) the 2-lens ED Apo refractor can then be used as a normal telescope with 80mm aperture and 560mm focal length for observation and photography of the night sky. The FPL-53 doublet lens offers an low colour aberration image. Common 2 inch star diagonals can be used at the high quality R&P focuser of the conversion kit 0551330.
Please note that the optionally available conversion kit 0551330 is absolutely necessary if the telescope should be used at night.

More applications:
With additionally available accessories the LS80MT offers even more possibilities!
- Double-Stack
The LS80MT telescope can optionally be upgraded with the additionally available double-stack module DSII/SFPT (item number 0551395). The DSII system is a internal double-stack module. 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-Light
If 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 wavelength
Certainly, the Ca-K filter modules from Lunt Solar Systems can also be used at the LS80MT to observe and photograph super-granulation and other effects visible in this wavelength on the sun.

This makes the LS80MT a completely universal usable ED Apo telescope of very good quality!

FEATURES

2-lens ED APO refractor, FPL-53
Aperture: 80mm (no central obstruction)
Focal length: 560mm
Bandwidth: internal Etalon with <0.7 Angstrom
Tuning: air pressure tuning system Pressure-Tuner
Supplied without blocking filter, additionally available blocking filter absolutely necessary!
Focuser: R&P with 10:1 reduction
Two tube-ring with handle
Sol-Searcher installed inside handle
Dovetail bar at GP-level for astronomical mounts
Weight: 4.95kg
Length with blocking filter and dew-shield: 62cm
Length without blocking filter and removed dew-shield: 50cm

SCOPE OF DELIVERY

LS80MT Multipurpose Telescope
Pressure-Tuner
2 inch R&P focuser with 10:1 reduction
Tube rings with dovetail bar and sol-searcher
Transport case (78x33x23cm)
Instruction manual

Conversion kit for observation of the starry night sky (0551330) not included!

Angular resolution (arc seconds):	1.7
Aperture ratio:	7
Batteries required:	0
Case:	Aluminium Case
Colour:	white
Extended warranty (years):	5
Eyepiece Barrel Diameter (mm):	31.7
Field of application [Telescopes]:	Solar observation
Focal length (mm):	560
Focusing system:	2" Rack-and-Pinion Focuser with 10:1 reduction
Full width at half maximum (Angström), less then:	0.7
Material:	Aluminium
Mirror/Lens diam. (mm):	80
Mount Type [Telescopes]:	Optics without Mount
Net Weight total (incl. accessories) (in kg):	10.2
Optical design:	Apochomatic Refractor
Telescope filter type:	Solar Filter H-Alpha
Total height (mm):	230
Total length (mm):	780
Total width (mm):	330

Manual_LS80MT_en_LUNT-SOL_v102020a.pdf

Manual_LS80MT_de_LUNT-SOL_v102020a.pdf

Manual_LS80MT_fr_LUNT-SOL_v092021a.pdf

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 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

€1,299.00*

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

€1,298.00*

Details

LUNT B1800s Blocking-Filter in extension tube

Blocking-filter in straight extension tube, for telescopes up to 1620mm 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 B1800s 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 B1800s can be used at LUNT H-alpha systems, if the used telescope has 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 focalIn straight extension tubeFor 1.25 inch and 2 inch focuserConnection for 1.25 inch eyepiecesT2 thread for camera connectionSCOPE OF DELIVERYBlocking-filter B1800s in straight extension tube

€1,998.00*

LUNT B1800d2 Blocking-Filter in 2 inch zenith mirror diagonal

Blocking-filter in 90° zenith mirror diagonal, for telescopes up to 1620mm 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 B1800d2 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 B1800d2 can be used at LUNT H-alpha systems, if the used telescope has a 2 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 housing2 inch slide tube for 2 inch focuserConnection for 1.25 inch eyepiecesT2 thread for camera connectionSCOPE OF DELIVERYBlocking-filter B1800d2 in 90° star-diagonal for 2 inch focuser

€1,998.00*

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 LS80MTBP&F Conversion Kit for LS80MT

The LS80MT solar telescopes can be upgraded with this optional conversion kit. This allows the telescopes to be used as 2-lens ED apochromatic refractor for observation and photography of the starry night sky.The H-Alpha system of the LS80MT telescopes can be easily replaced by this conversion kit. The conversion kit offers a high quality and solid R&P focuser. Even the heaviest cameras or other accessories will be hold without any problems and can be focused sensitively by the integrated 10:1 reduction.Simply loosen three knurled screws holding the H-Alpha unit including the focuser at the LS80MT. Attach here the new focuser, and your LS80MT is transformed into a 2-lens apochromatic telescope. The new focuser offers 85mm focusing way with backlash- and tilt-free mechanics also when using heavy accessories. A 2 inch clamp is directly at the focuser, and an adapter to 1.25 inch is included in delivery.But this is not all: With this conversion kit Herschel-wedges or Ca-K modules can be used at the LS80MT telescopes for solar observation. This makes it possible to observe the sun in H-alpha, in Calcium-K wavelength light, or in White-Light - with one and the same telescope!This conversion kit turns the LS80MT into a real all-round telescope!FEATURESBacklash- and tilt-free mechanics85mm focusing way10:1 reduction2 inch and 1.25 inch connectionSCOPE OF DELIVERYHigh quality 2 inch focuser with adapter to LS80MT telescopesAdapter from 2 inch to 1.25 inchInstruction manualLS80MT telescope not included! Can only be used together with a LS80MT solar telescope. This conversion kit is absolutely necessary if a LS80MT telescope should be used for night sky observation.

€428.00*

Details

LUNT DSII/SFPT double-stack module for LS80MT & LS100MT

Double-stack module for more contrast and details on the solar surface with the LS80MT and LS100MT telescopes.At the LS80MT and LS100MT telescopes double-stacking is possible with this internal DSII double-stack module when observing the sun in H-Alpha. The DSII modules reduce the bandwidth to <0.5 Angstrom. They are designed to show the surface details of the sun better, the contrast is significantly increased and therefore filaments and active regions are better visible.The DSII/SFPT module is designed exclusively for use in LS80MT and LS100MT telescopes, it cannot be used at other telescopes. It is used between the existing H-Alpha unit and the focuser on the telescope. Installation is simple, no additional adapters or tools are required.FEATURESBandwidth: <0.5 AngstromTuning: Air Pressure Tuning System SCOPE OF DELIVERYDSII module with internal Etalon for LS80MT and LS100MT telescopesPressure Tuner System(LS80MT or LS100MT telescope not included!)

€3,698.00*

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LUNT Blue-Glass 20mm for B400 to B1800 blocking-filters

Spare part for blocking-filters from LUNT SOLAR SYSTEMS, suitable for B400, B500, B600, B1200 and B1800 blocking-filters.The H-alpha telescopes and filter systems from Lunt Solar Systems each include a blocking-filter. The blocking-filters have a blue colored filter part on the side facing the telescope. This blue colored filter parts may become a milky white layer at older blocking-filters if the blocking-filter was storded at high air humidity for some time. Please always store H-alpha telescopes and filters as dry as possible. If this blue colored filter part has become a milky white layer, it can be replaced with this spare part. The replacement is easy and can be done by the user himself. Installation instructions can be found here under the "Manuals" tab as a PDF for download.Please note that this replacement part can only be used on Lunt Solar Systems blocking-filters B400 to B1800. If the problem happens with the large B3400 blocking-filter, the B3400 must be sent to our service department for repair.FEATURESDiameter: 20mmCannot be used separately, only as spare part at blocking-filters from Lunt Solar SystemsFor B400, B500, B600, B1200 and B1800 blocking-filtersIt does not matter if the blocking-filters are installed in 90° zenith-mirrors or straight extension-tubesSCOPE OF DELIVERYSpare part 20mm blue glass for B400 to B1800 blocking-filters

€15.00*

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LUNT O-ring 34mm for Pressure-Tuner at MT & THa solar telescopes

Spare part for Pressure-Tuner of MT and THa series H-alpha solar telescopes from LUNT SOLAR SYSTEMSTwo rubber O-rings are installed into the Pressure-Tuner of Lunt Solar Systems solar telescopes to seal the air-pressure tuning system. Over time, the rubber of this O-rings can age and become porous, whereby the air-pressure can then no longer be maintained. When this happens, a old O-ring can be replaced by this spare part. The replacement is simple and can be done by the user. Installation instructions can be found here under the tab "Manuals" as a PDF file for download.Please be sure to note:Depending on the production series, the diameters of the Pressure-Tuner pistons can vary slightly. There are pistons for O-rings with 32mm inner diameter and 40mm outer diameter, and pistons for O-rings with 34mm inner diameter and 42mm outer diameter. Please check the diameter of your old O-rings, this spare part is an O-ring with 34mm inner diameter and 42mm outer diameter.If you need the smaller O-ring with 32mm inner diameter and 40mm outer diameter, this is the spare part with item number 0558330.The LS50THa telescopes have Pressure-Tuners with smaller diameters, for these you will need replacement O-rings with item number 0558320.After replacing a O-ring, the piston and cylinder of the Pressure-Tuner can be re-greased with grease available under item number 0558350.FEATURESInner diameter: 34mmOuter diameter: 42mmCannot be used separately, only as a replacement part on the Pressure-Tuner of MT and THa telescopes from Lunt Solar Systems.It does not matter what blocking-filter is at the MT or THa telescope.SCOPE OF DELIVERYSpare part one O-ring with 34mm inner diameter and 42mm outer diameter for Pressure-Tuner of MT and THa H-alpha solar telescopes from Lunt Solar Systems

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LUNT Grease for Pressure-Tuner at MT & THa solar telescopes

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