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LUNT LS100MTBP&F Conversion Kit for LS100MT

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Guides & Tips

FAQ - Frequently Asked Questions

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

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

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

BRESSER Diagonal Mirror 2" with 93% reflection
A very good diagonal mirror for telescopes with 2" focuser and for the BRESSER Messier telescopes with a 2.5"- HEX focuser. Enables the use of eyepieces and accessories with 2" barrel, so that a wider field of view can be reached. A larger light beam and a comfortable observation position is achieved by this 2 inch zenith mirror. Especially for use with refractors and for zenith observations a useful accessory.  The clamping ring is made of brass, so there will be no scratch marks on your high-quality eyepiece. The precise clamping is another advantage. The BRESSER 2" Diagonal Mirror is completely made of metal and has a very accurate flat mirror. The dielectrical coating delivers a 93% reflectance and is very durable against enviromental influences. FEATURES Star diagonal mirror for focuser with 2" barrel High quailty flat mirror Dielectrical mirror coating delivers a 93% reflectance Very durable against enviromental influencesEyepiece adapter 1.25/2.0 inch includedBrass eyepiece clamping ring Housing completely made of metal Dust caps included SCOPE OF DELIVERY diagonal mirroreyepice adapter 1.25/2.0 inch dust caps

Available

€79.00*
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LUNT LS18CaKMDd2 Ca-K filter in 90° star diagonal
Calcium-K module in star diagonal, for using normal astronomical telescopes up to 100mm aperture and up to 1620mm focal length as Ca-K solar telescopes.This Calcium-K module transforms your normal astronomical refractor telescope into a Ca-K solar telescope. It will be very easy: Put the Ca-K module into the 2" focuser of your telescope, and you are ready for solar observing in the light of the Calcium-K wavelength.Internal narrowband filters allow for a <2.4 Angstrom bandwidth. For refractor telescopes up to 100mm aperture and up to 1620mm focal length. For imaging it will be better to use a bigger Ca-K module.The Ca-K module is in a 90° star diagonal, for 2" focuser on the telescope side, and with T2 thread and 1.25" eyepiece connection on the eyepiece side.All needed filter parts are integrated inside the compact module. There are no additional filters needed.The Ca-K wavelength is at the edge of the visible light spectrum for human eyes, so for many people visual observing is difficult. However, all details could be captured photographically. Therefore the Ca-K Module is optimized primarily for imaging.FEATURESBandwidth <2.4 AngstromUsable at telescopes up to 100mm aperture and 1620mm focal90° star-diagonal housing2" slide tube for 2" focuserConnection for 1.25" eyepiecesT2 thread for camera connectionSCOPE OF DELIVERYCa-K module in 90° star diagonal for 2" focuserIntegrated blocking filter B1800 for telescopes up to 1620mm focal lengthInstruction manual

Available

€2,190.00* €2,898.00* (24.43% saved)
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LUNT CAA-RF 0.8x reducer/field-flattener for nighttime photography with LS80MT, LS100MT & LS130MT telescopes
​Field-flattener and focal length reducer for deep-sky astrophotography. Designed for the multipurpose APO telescopes of the Lunt-Solar-Systems LS80MT, LS100MT and LS130MT series.At the telescopes of the MT series from Lunt Solar Systems, the H-Alpha filter unit for solar observation can be removed, then these telescopes can be used as high quality ED APO's for observing and photographing the night sky.This accessory for the LS80MT, LS100MT and LS130MT telescopes shortens the focal length by a factor of 0.8x, providing a larger field of view for deep-sky astrophotography. This also allows shorter exposure times. At the same time, the field of view is flattened for photography.On the camera side, the reducer/field-flattener has a T2 male thread (M42x0.75). DSLR cameras can be connected here directly with a normal T2 ring.For other cameras, an M48x0.75 male thread is available in addition to the T2 male thread. The distance between reducer/field-flattener and camera sensor should be around 50 to 55mm.An M64x1 thread is provided on the telescope side. This allows to connect the reducer/field flattener to the focusers of the conversion kits for the LS80MT, LS100MT and LS130MT telescopes. Please note that for using the reducer/field flattener at the LS80MT, LS100MT or LS130MT telescopes, the corresponding conversion kit for night-time use of the telescope is absolutely necessary..FEATURESShortens focal length of F/7 ED telescopes by a factor of 0.8xFlattened field of view for photographyT2 thread and M48x0.75 thread for camera connectionWorking distance 50 to 55mmSCOPE OF DELIVERY0.8x reducer/field-flattenerAdapter to T2 thread (M42x0.75) and to M48x0.75

Available

€420.00* €598.00* (29.77% saved)
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Customers also bought

LUNT Grease 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 SYSTEMSFor example, if the O-rings have been changed on a Pressure-Tuner of a Lunt Solar Systems H-alpha solar telescope, the Pressure-Tuner can be re-greased with this grease. The grease can be applied to the piston with the O-rings and to the threads of the brass cylinder on the Pressure-Tuner. It keeps the Pressure-Tuner running smoothly and seals it.Please note:Do not use too much grease inside the brass cylinder. The grease must not get into the air passage at the bottom of the brass cylinder, otherwise the Etalon could be damaged in the worst case.FEATURESLithium grease with Teflon contentVery good sealing propertiesHigh adhesion and good corrosion protectionTemperature stable from -20 to +120° CelsiusConstant viscosity during temperature fluctuationsSCOPE OF DELIVERYSpare part: Grease for Pressure-Tuner of MT and THa H-alpha solar telescopes from Lunt Solar Systems

Available

€2.50*
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

Available

€5.00*
LUNT O-ring for Pressure-Tuner at LS50THa solar telescopes
​Spare part for Pressure-Tuner of LS50THa H-alpha solar telescopes from LUNT SOLAR SYSTEMSA rubber O-ring is installed into the Pressure-Tuner of Lunt Solar Systems LS50THa solar telescopes to seal the air-pressure tuning system. Over time, the rubber of this O-ring can age and become porous, whereby the air-pressure can then no longer be maintained. When this happens, the 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 for download.After replacing the O-ring, the piston and cylinder of the Pressure-Tuner can be re-greased with grease available under part number 0558350.Please note that this spare part can only be used on the Lunt Solar Systems LS50THa H-alpha solar telescopes. If the problem occurs on the larger THa or MT series telescopes, the larger O-rings with part numbers 0558330 or 0558340 must be used there.FEATURESInner-diameter: 31mmOuter-diameter: 39mmCannot be used separately, only as a replacement part on the Pressure-Tuner of the LS50THa telescopes from Lunt Solar Systems.It does not matter what blocking filter is at the LS50THaSCOPE OF DELIVERYSpare part one O-ring for pressure tuner of LS50THa

Available

€5.00*
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Adapter T2 to 2", for 2" eyepieces to blocking filter
Adapter T2 to 2", takes for example 2" eyepieces to Lunt Solar Systems blocking-filters.This adapter offers a T2 female thread at the telescope-side, and a 2" connection at the eyepiece-side.For example you want to use your 2" eyepieces at Lunt Solar Systems telescopes or filters? All you need is this adapter. Simply remove the 1.25" eyepiece tube from your blocking-filter, and thread on this 2" adapter. It takes T2 threading to a 2" eyepiece tube.You can use 2" eyepieces with this adapter at:• LUNT H-alpha telescopes (not at LS35THa!)• the blocking-filters of LUNT H-alpha filter systems• LUNT Ca-K modules• all telescopes/adapter with T2 male threadTechnical data:• Thread at telescope-side: T2 female thread• Eyepiece connection: 2"Delivered by order:• Adapter T2 to 2"(Blocking Filter not included)

Available

€19.00* €29.00* (34.48% saved)
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BRESSER Messier NT150L/1200 EXOS-2 PMC-Eight GoTo Telescope Set
This set, consisting of the MESSIER NT-150L/1200 telescope and the EXOS-2 PMC-Eight GoTo mount, combines sharp images with precise tracking and easy sky navigation. With the 150 mm aperture, the telescope allows impressive views of nebulae, galaxies, and other fascinating celestial objects. The long focal length of 1,200 mm also reveals many exciting details on the planets. Additionally, thanks to the high-quality solar filter, you can safely admire our own star. The modern mount, with its precise GoTo control and user-friendly ExploreStars app, provides the ideal foundation for your visual observations and advanced astrophotography. The Telescope High stability and razor-sharp optics are the hallmarks of the MESSIER NT-150 telescope. The 150 mm aperture allows you to observe even smaller nebulae in the vastness of space. Discover the remnants of a massive star explosion from the year 1054 in the Taurus constellation, or trace the bright filaments of the Great Orion Nebula. Spot the famous Pinwheel Galaxy in the constellation Ursa Major, or find the Dumbbell Nebula in Vulpecula. With the high-quality objective solar filter, the telescope is also perfect for the safe observation of sunspots, eclipses, and planetary transits. The Mount The EXPLORE SCIENTIFIC EXOS-2 PMC-Eight GoTo mount features a modern and very precise GoTo control. It consists of a robust Wi-Fi controller unit, which provides all the necessary interfaces. The NEMA-11 stepper motors are directly connected to this unit via cable, and an ST-4-compatible autoguider interface is also available. Additionally, the control system supports micro-stepping to ensure precise tracking. Intuitive operation via app and graphical star map The specially developed ExploreStars app for the PMC-Eight system impresses with a visually appealing and intuitive user interface. The currently available alignment stars for initializing the control, as well as all celestial objects from the database, are displayed as a star map with additional text information. All these objects can be easily viewed and selected. Powerful controller unit with Open GoTo for customization At the heart of the controller unit is a fully self-sufficient 2-channel multi-processor with 8 CPUs and a Wi-Fi Ethernet 10/100 adapter with IP function. This enables remote operation via browser, ASCOM, app, or serial connection. The Open GoTo also allows custom firmware to be written and uploaded to the controller unit. This enables individual customization of device functions and the creation of custom object lists. Polar finder included The pre-installed polar finder scope included in the package allows for quick and precise polar alignment and long exposure times without unwanted star trailing. The integrated LED lighting unit further enhances the usability of the polar finder. FEATURES TELESCOPE Type: Reflector telescope Mirror diameter: 150 mm / Focal length: 1,200 mm / F/8 Maximum useful magnification: 300x Telescope for night and solar observation Collects 460x more light than the human eye True-color reproduction of objects Very high-quality Hexafoc focuser with 2.5" clear inner diameter Optimized finder bracket for comfortable viewing Carry handle for easy transport with integrated camera holder (photo thread screw) Smartphone adapter included for sky navigation Prism rail with stainless steel clamping surface T2 adapter for DSLR cameras (optional T2 ring required) 50.8-to-31.7 mm adapter with integrated T2 adapter (optional T2 ring required) FEATURES MOUNT Powerful PMC-8 Open GoTo system User-friendly and visually appealing ExploreStars OpenGoto app Wi-Fi control via tablet, notebook, or desktop PC with a minimum 7" display and Wi-Fi function (not included) Compatible operating systems: WIN8.1, WIN10/11, iOS, or Android 4.4 and higher Classic control via direction keys or joystick for guiding, centering, correcting, and slewing via touchscreen Intuitive 2-star and 3-star alignment for GoTo control initialization Multiprocessor microcontroller with 8 CPUs Micro-stepper motors NEMA-11 Highly precise and quiet belt drive ST-4-compatible autoguider interface ASCOM driver available, also supports pulse guiding Ability to create custom firmware and object lists and upload them to the PMC-8 GPS-compatible / settings depend on the used computer or tablet Power supply via 12-volt DC, with a maximum power consumption of 1.6 amps under full load SCOPE OF DELIVERY Optical tube 26 mm Super Plössl eyepiece (31.7 mm / 1.25") Integrated 31.7 mm and T2 adapter Prism rail with stainless steel clamping surface Adapter for 50.8 mm (2") eyepieces Rotating star map Objective solar filter Tube rings with carrying handle and camera holder 6x30 finderscope Smartphone adapter for navigation Astronomy PC software Stellarium (download) EXOS2-GT mount with Open GoTo PMC-8 Stainless steel tripod with built-in spirit level 2 x 4.5 kg counterweight Polar finder with lighting unit 12V / 2A power supply ExploreStars app via software download User manual

Currently not available

€1,288.00*
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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

Available

€1,390.00* €1,998.00* (30.43% saved)
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LUNT CAA-RF 0.8x reducer/field-flattener for nighttime photography with LS80MT, LS100MT & LS130MT telescopes
​Field-flattener and focal length reducer for deep-sky astrophotography. Designed for the multipurpose APO telescopes of the Lunt-Solar-Systems LS80MT, LS100MT and LS130MT series.At the telescopes of the MT series from Lunt Solar Systems, the H-Alpha filter unit for solar observation can be removed, then these telescopes can be used as high quality ED APO's for observing and photographing the night sky.This accessory for the LS80MT, LS100MT and LS130MT telescopes shortens the focal length by a factor of 0.8x, providing a larger field of view for deep-sky astrophotography. This also allows shorter exposure times. At the same time, the field of view is flattened for photography.On the camera side, the reducer/field-flattener has a T2 male thread (M42x0.75). DSLR cameras can be connected here directly with a normal T2 ring.For other cameras, an M48x0.75 male thread is available in addition to the T2 male thread. The distance between reducer/field-flattener and camera sensor should be around 50 to 55mm.An M64x1 thread is provided on the telescope side. This allows to connect the reducer/field flattener to the focusers of the conversion kits for the LS80MT, LS100MT and LS130MT telescopes. Please note that for using the reducer/field flattener at the LS80MT, LS100MT or LS130MT telescopes, the corresponding conversion kit for night-time use of the telescope is absolutely necessary..FEATURESShortens focal length of F/7 ED telescopes by a factor of 0.8xFlattened field of view for photographyT2 thread and M48x0.75 thread for camera connectionWorking distance 50 to 55mmSCOPE OF DELIVERY0.8x reducer/field-flattenerAdapter to T2 thread (M42x0.75) and to M48x0.75

Available

€420.00* €598.00* (29.77% saved)
EXPLORE SCIENTIFIC Zero X Field Flattener 2''/M48 for ED80, ED102 and ED127 APO
Field flattener without reduction factor for Explore Scientific ED80 , ED102 and ED127 APO Refractors The imaging plane of many telescopes is not flat but curved. This means that only the area in the centre is perfectly focused - the edge becomes blurred. The human eye can usually compensate for this image property, but a camera shows increasing blurriness towards the edge of the image field. The Explore Scientific Zero X field flattener eliminates the field curvature in many telescopes with a focal length of approx. 480 to 952 mm. The Zero X field flattener was calculated and developed for Explore Scientific ED80, ED102 and ED127 apochromats with focal ratios of F=6.0 and F=7.5. The image sharpness at the edge is dramatically increased. The stars appear round and no longer distorted - a clear benefit for the whole image aesthetics. The Zero X image flattener can be used not only with Explore Scientific Apos, but also with many other Apos. This flattener does not change the focal length of the telescope. Correction for up to full-frame camera sensors (24x36mm) The Explore Scientific Zero X image flattener has been developed due to the rapid development of ever larger camera sensors. With it, there is finally a field flattener available that illuminates and corrects the field of view for full-frame camera sensors up to 24x36 mm. How to use the Zero X field flattener with M48 thread connection This field flattener has a 2 inch (50.8 mm) plug-in connection on the telescope side, with which it is inserted into the telescope instead of an eyepiece or star diagonal mirror. On the camera side, there is a standardised M48 x 0.75 mm connection thread. This M48 connection thread offers a larger free inner diameter than the usual T2 (M42) thread and prevents vignetting when using large camera sensors. With an optionally available and camera-specific adapter ring, a DSLR camera can be connected to it. The working distance is already set at 55 mm. Of course, mirrorless cameras or special astro cameras can also be used with the M48 thread connection. For this, the appropriate M48 spacer sleeves or adapters are additionally required to set the right working distance of 55 mm. This must always be done with every corrector or field flattener so that the best possible field flattening is achieved.Filter thread on telescope side availableThe telescope-side 2.0 inch plug-in sleeve has an M48x0.75 filter thread (internal thread). Individual 2.0 inch colour or nebula filters can be inserted here to increase the contrast of the images.FEATURESField flattener for Explore Scientific ED80, ED102 and ED127 APO telescopesRemoves field curvature from telescopesProduces round stars even at the edge of the image fieldImage sharpness at the edge is drastically increasedA clear benefit for the whole image aestheticsCorrection of field curvature for up to full-frame camera sensors (24x36 mm)Image field flattener without reduction factorOn the telescope side with 2 inch (50.8 mm) plug-in connection and M48x0.75mm filter threadCamera side with large M48 threaded connectorWorking distance of 55 mm between field flattener and camera sensorFor telescopes with a focal length of approx. 480 to 952 mmOptimised for telescopes with focal ratios from F=6.0 to F=7.5Can also be used for various other APOsFully multi-coating on all lens surfacesHousing made of lightweight aluminium, black anodisedAluminium dust cap for M48 threadSCOPE OF DELIVERYZero X field flattener (1 piece)Dust caps

Available

€179.00*
BRESSER YOUNGSTER Microscope with Magnification 40x-2000x
The BRESSER YOUNGSTER has up to 2000x magnification and a new innovative Smartphone Mount that allows you to take photos through the microscope. To ensure you're fully equipped, the accessories included provide the perfect introductory equipment. This includes, among other things, two wide-field eyepieces, a colour filter disk, many slides and storage containers. With its elegant Bresser design, the microscope has many useful features. The adjustable LED illumination can be used as an incident light for viewing opaque objects and as transmitted light for viewing transparent objects. FEATURES Introductory microscope Magnification: 40x-2000x Lenses: 4x/10x/40x Oculars: WF25x/ WF10x Comprehensive accessories Includes experiment kit for breeding brine shrimp (Artemia) Battery powered: 3x AA batteries (not included) SCOPE OF DELIVERY Microscope Smartphone mount Wide field eyepieces: WF25x/ WF10x 2x Barlow lens Colour filter disk Box with slides, storage case Experiment kit (magnifier box, brine shrimp eggs, yeast) Sea salt Preparation set Instruction manual

Available

€99.90*