LUNT LS50FHa/B1800d1 H-alpha solar filter

Ultra Light Dobsonian 305mm GENERATION II - with completely redesigned and improved construction.No telescope type has influenced amateur astronomy as radically as the dobsonian telescope. Before the introduction of this telescope type by John Dobson the vast majority of amateur telescopes were small inadequate refractors on shaky mounts - just good enough to show the polar regions on mars or the rings of Saturn. Bigger telescopes, like the Schmidt-Cassegrain telescopes, were restricted to the relatively small group of amateurs that could afford them.The brilliant combination of simple - but effective - mechanics and the largest aperture available led to a worldwide triumph of this concept. No other telescope type offers you so much light for your money as a good dobson. We have taken the motto "held together by gravity and driven by yoghurt power" and offer a modern version of the classic - designed by amateur astronomers for amateur astronomers. Despite its large aperture the telescope can be transported easily even in small cars and is assembled within minutes without tools. The construction was optimized for maximum rigidity with a minimum of mass. The combination of big altitude wheels and a optimized aluminium-sandwich construction allows for small movements even at high magnifications. The focus position is already positioned to accept our coma-corrector. The ideal workhorse for the deep-sky enthusiast. A telescope with 305mm aperture gathers more than 1800-times more light than the naked eye. Details on planetary surfaces stand out even to unexperienced observers, and countless deep-sky objects show details. Bright globular clusters are resolved down to the core and the view of the lunar terminator will provide a unforgettable experience.Dimensions for mobile use: Rockerbox 450mmx450mmx320mm; Mirrorbox 380mmx380mmx300mm; Trusses approx. 980mmEyepiece Height while pointing at zenith approximately 1,4m.12“ Net total weight: 32,1 kg; 12“ Mirror Box: 18,9 kg; 12“ Secondary cage +Rockerbox: 10 kg; 12“ 4 Pairs of trusses: 1,8kg; 12“ Altitude Wheels: 1,4kg ; Focuser thread: M54 x 0.75 mm ; Backfocus: 45mm behind the 2" eyepiece holder. 35mm when the 1.25" adapter is mountedSPECIFICATIONS Truss-Dobsonian Telescope in full Aluminium constructionNEW: Slider bearings made from TEFLON und GFK for smooth and precise movementNEW: Improved main mirror cell with completely redesigned mechanicsNEW: Altitude bearings with new designed brake and friction systemNEW: Larger feet to improve stabilityNEW: Universal finder slot to enable an easy finder upgradeNEW: Counter-weight system included - 2 x 1.0 kg NEW: Quick-lock fasteners with new springloaded design for comfortable useNEW: Powder-coated yellow altitude wheels to improve durabilityNEW: Laser engraved central mark on main mirrorSCOPE OF DELIVERYTruss Dobsonian TelescopeLED finder with standard finder slotStray light shield for secondary cageMain mirror collimation toolBattery compartment with bag for fansCounter-weights 2 x 1.0 kgExtension tube for focuserReducer 2"/1.25"Manual

60mm H-alpha solar filter system with B600 blocking filter, for front mounting at telescopes with 2" focuser, and up to 540mm focal length.The LS60FHa H-alpha Etalon filter system with 60mm aperture (no central obstruction) for use on any refractor and many other telescopes. Because the LS60FHa has an estimated bandwidth of <0.75 Angstrom it is capable to providing high contrast views of both solar surface and edge detail (prominences).The system includes the B600 blocking filter, which is usable for telescopes up to 540mm focal length. Larger blocking filters suitable for longer focal length are also optional available. The blocking filter is installed in a 90° star diagonal for 2" focuser. This diagonal is equipped with a reception for 1.25" eyepieces and a T2 camera connection.Adding an additional available double-stack Etalon system will reduce the bandwidth to ~<0.55 Angstrom.FEATURESAperture: 60 mmNo central obstructionBandwidth: <0.75 AngstromTuning: tiltable EtalonHousing diameter: 95 mmLength: 85 mmWeight: 0.85 kgFront thread: M90x1 female threadRear thread: M90x1 male threadBlocking filter: B600 in diagonal for 2" focuserMaximum focal length of telescope: 540 mmSCOPE OF DELIVERYLS60FHa solar filterB600 Blocking Filter (for 2" focuser) in star-diagonalTransport caseInstruction manual

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

Adding one or more accessory bays will provide you with additional storage for your computer, books, etc. ​It is advisable to purchase these bays at the time of purchasing your observatory. This will save the extra delivery charge at a later date. The accessory bay comes with fixing kit and full installation instructions.  DIMENSIONS: 1050mm high x 680mm wide x 500mm deep , weight: 15 kgSCOPE OF DELIVERYBay (1 piece)

60mm H-alpha solar filter system with B1800 blocking filter, for front mounting at telescopes with 2" focuser, and up to 1620mm focal length.The LS60FHa H-alpha Etalon filter system with 60mm aperture (no central obstruction) for use on any refractor and many other telescopes. Because the LS60FHa has an estimated bandwidth of <0.75 Angstrom it is capable to providing high contrast views of both solar surface and edge detail (prominences).The system includes the B1800 blocking filter, which is usable for telescopes up to 1620mm focal length. Larger blocking filters suitable for longer focal length are also optional available. The blocking filter is installed in a 90° star diagonal for 2" focuser. This diagonal is equipped with a reception for 1.25" eyepieces and a T2 camera connection.Adding an additional available double-stack Etalon system will reduce the bandwidth to ~<0.55 Angstrom.FEATURESAperture: 60 mmNo central obstructionBandwidth: <0.75 AngstromTuning: tiltable EtalonHousing diameter: 95 mmLength: 85 mmWeight: 0.85 kgFront thread: M90x1 female threadRear thread: M90x1 male threadBlocking filter: B1800 in diagonal for 2" focuserMaximum focal length of telescope: 1620 mmSCOPE OF DELIVERYLS60FHa solar filterB1800 Blocking Filter (for 2" focuser) in star-diagonalTransport caseInstruction manual

A high-quality astronomy set for ambitious beginners and advanced users: The compact BRESSER Messier AR-152S/760 telescope with solar filter offers you great opportunities for sky observation and photography together with the EXOS-2 PMC-Eight GoTo mount. With the large 152 mm aperture and 760 mm focal length, you can observe large celestial bodies through the optics. The four-lens achromat delivers sharp and high-contrast images with minimal colour aberration. The excellent mount provides precise tracking, a powerful GoTo system, and the intuitive ExploreStars app for easy sky navigation. The Telescope A high-quality telescope for night and solar observation: The combination of the large 152 mm aperture and the short 760 mm focal length makes the BRESSER Messier AR-152S ideal for observing large celestial objects. Experience the sight of the famous globular cluster M13 in the constellation Hercules: Thousands of needle-sharp stars embedded like a glittering cloth of black velvet before your eyes. With additional nebula filters (not included), you can also admire the famous "Gulf of Mexico" in the North America Nebula, as well as all the celestial objects listed by Charles Messier in his famous catalogue from 1781. The compact design of the telescope offers excellent portability, easy operation, great light-gathering ability, and very low weight for its size. Thanks to the special four-lens achromatic design, even with the very fast aperture ratio of f/5 for a refractor, you achieve minimal colour aberration and better photographic correction compared to similar two-lens devices. With the high-quality objective solar filter, you can safely observe sunspots, eclipses, and planetary transits. (Warning: Never aim the telescope at the Sun without the solar filter!) The Mount The EXPLORE SCIENTIFIC EXOS-2 PMC-Eight GoTo mount is equipped with a modern and highly precise GoTo control system. It consists of a robust Wi-Fi controller unit that provides all necessary interfaces. The NEMA-11 stepper motors are directly connected to this unit via cable, and a ST-4 compatible autoguider interface is also available. Additionally, the control system supports microstep operation for precise tracking. Intuitive operation via app and graphical star chart The ExploreStars app, specially developed for the PMC-Eight system, impresses with a graphically successful, intuitive user interface. The available alignment stars for system initialisation, as well as all celestial objects in the database, are displayed as a star chart with additional text information. All these objects can be easily viewed and selected. Powerful controller unit with Open GoTo for customisation The heart of the controller unit is a fully autonomous 2-channel multi-processor with 8 CPUs and a Wi-Fi Ethernet 10/100 adapter with IP functionality. This allows for remote operation via browser, ASCOM, app, or serial connection. With Open GoTo, you can also write your own firmware and load it into the controller unit. This allows for individual adjustments to the device's functions and the creation of your own object lists. Polar finder included The included and pre-installed polar finder scope allows for quick and precise polar alignment and long exposure times without unwanted star trails. The integrated LED lighting unit further enhances the ease of use of the polar finder. FEATURES TELESCOPE Type: Refractor telescope Lens diameter: 152 mm / Focal length: 760 mm / F/5 Maximum useful magnification: 254x Telescope for night and solar observation High-quality BRESSER refractor optics Ideal universal telescope for planets, double stars, planetary nebulae, and deep sky High-quality Hexafoc focuser with 2.5" clear internal diameter 8x50 finderscope with crosshair eyepiece Optimised finder mount for comfortable viewing Handle for easy transport with integrated camera holder (photo thread screw) Smartphone camera adapter for sky navigation included Prism rail with stainless steel clamping surface (44 mm universal dovetail for GP/EQ5/LXD75) 50.8 mm to 31.7 mm adapter with integrated T2 adapter (optional T2 ring required) Focal plane/back focus: 150 mm behind Hexafoc with 2" reduction FEATURES MOUNT Powerful PMC-8 Open GoTo system User-friendly and graphically appealing ExploreStars OpenGoto app Wi-Fi control via tablet, notebook or desktop PC with at least a 7" display and Wi-Fi functionality (not included) Compatible operating systems: WIN8.1, WIN10/11, iOS or Android 4.4 and higher Classic control via directional buttons or joystick for guiding, centring, correcting, and moving via touchscreen Intuitive 2-star and 3-star alignment for GoTo system initialisation 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 your own firmware and object lists and load them into the PMC-8 GPS compatible / Settings dependent on the computer or tablet used Powered by 12-volt DC, with a maximum power consumption of 1.6 amps at full load SCOPE OF DELIVERY Optical tube with Hexafoc focuser Objective solar filter 26 mm Super Plössl eyepiece (31.7 mm / 1.25") 31.7 mm (1.25") star diagonal mirror Integrated 31.7 mm and T2 adapter Tube rings with prism rail and stainless steel clamping surface (44 mm universal dovetail for GP/EQ5/LXD75) Handle and camera holder Smartphone adapter for navigation 8x50 finderscope Astronomy PC software Stellarium (via download) Rotating star chart EXOS2-GT mount with Open GoTo PMC-8 Stainless steel tripod with built-in spirit level Counterweight 2 x 4.5 kg Polar finder with lighting unit Power supply 12 volts / 2 amps ExploreStars app via software download User manual

50mm H-alpha solar filter system with B1200 blocking filter, for front mounting at telescopes with 1.25" focuser, and up to 1080mm focal length.The LS50FHa H-alpha Etalon filter system with 50mm aperture (no central obstruction) for use on any refractor and many other telescopes. Because the LS50FHa has an estimated bandwidth of <0.75 Angstrom it is capable to providing high contrast views of both solar surface and edge detail (prominences).The system includes the B1200 blocking filter, which is usable for telescopes up to 1080mm focal length. Larger blocking filters suitable for longer focal length are also optional available. The blocking filter is installed in a 90° star diagonal for 1.25" focuser. This diagonal is equipped with a reception for 1.25" eyepieces and a T2 camera connection.Adding an additional available double-stack Etalon system will reduce the bandwidth to ~<0.55 Angstrom.FEATURESAperture: 50 mmNo central obstructionBandwidth: <0.75 AngstromTuning: tiltable EtalonHousing diameter: 95 mmLength: 73 mmWeight: 0.7 kgFront thread: M90x1 female threadRear thread: M90x1 male threadBlocking filter: B1200 in diagonal for 1.25" focuserMaximum focal length of telescope: 1080 mmSCOPE OF DELIVERYLS50FHa solar filterB1200 Blocking Filter (for 1.25" focuser) in star-diagonalTransport caseInstruction manual