LUNT LS50THa/B400PT H-alpha solar telescope (Refurbished)

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, good 2 inch (50.8mm) R&P focuser, and B1800 blocking filter.Solar observing in H-alpha:The LS80MT/B1800 is a complete 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.Blocking-filter is the B1800. The B1800 is very good for visual solar observing and also for photography.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. 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-StackThe 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-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 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!FEATURES2-lens ED APO refractor, FPL-53Aperture: 80mm (no central obstruction)Focal length: 560mmBandwidth: internal Etalon with <0.7 AngstromTuning: air pressure tuning system Pressure-TunerBlocking filter: B1800 with 1.25" and T2 connectionFocuser: R&P with 10:1 reductionTwo tube-ring with handleSol-Searcher installed inside handleDovetail bar at GP-level for astronomical mountsWeight: 4.95kgLength with blocking filter and dew-shield: 62cmLength without blocking filter and removed dew-shield: 50cmSCOPE OF DELIVERYLS80MT Multipurpose TelescopePressure-TunerB1800 blocking filter in star-diagonal housing2 inch R&P focuser with 10:1 reductionTube rings with dovetail bar and sol-searcherTransport case (78x33x23cm)Instruction manualConversion kit for observation of the starry night sky (0551330) not included!

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 B600 blocking filter.Solar observing in H-alpha:The LS60MT/B600 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 B600. The B600 is good for visual solar observing. Also solar imaging is possible by cameras with small CCD chip. We recommend a LS60MT with B1200 blocking-filter by using cameras with middle or large sized CCD chips.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: B600 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-TunerB600 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

Observe solar eclipses, sunspots, planetary transits, flyovers by aircraft and satellites.For DIY construction of objective filters for smartphone cameras, telescopes, binoculars, photo and video cameras.Newly developed solar filter film with the optical quality of a high-quality glass filter but with the durability of a polymer film.Double protective filter thanks to the polymer carrier material with an additional reflective coating.Produces a very natural bright-yellow solar image.Also suitable for high magnifications.Very uniform brightness distribution.Ideal for visual and photographic use.Very low weight and therefore requires no additional counterweights.Extremely flat surface compared to most other film filters, which very easily develop creases and kinks.Very resistant to damage.Lab tested to DIN EN ISO 12312-2 : 2015-11100% safeTECHNICAL DATAMaterial thickness: 0.05 mmOptical density: 5Optical transmission: 1/1000 of 1% (99.999% reflection of incoming light)Format: A4 - 210 x 297 mmSCOPE OF DELIVERYFilter film, A4 formatInstruction manual

SPEZIAL ASTRO binoculars from BRESSER are ideal for astronomy and landscape observation. This is a professional large binocular with ED glass objective lenses for the very highest demands on color fidelity and brilliance. With the best viewing characteristics, a robust marine version and a sturdy tripod adapter. Thanks to fully multi coated Bak-4 glass material, the extra large objective lens diameter and highly corrected eyepieces with 5 lenses in 3 groups these binoculars provide bright, crisp images from edge to edge. The high 20x magnification it is convenient not only for observing astronomical objects but is also practical for viewing distant terrestrial objects. Due to a very high reduction of stray light, the binoculars deliver the best possible picture and a perfect sight. With the individual eyepiece focus once set you can get a sharp image for all astronomical distances. Foldable rubber eyecups give eye glass wearers the possibility of making the best use of these optics’ field of view. The binoculars are waterproof and ARGON gas filled to avoid internal fogging. The ergonomic rubber armouring provides a good grip and is also protected against shocks. With the included heavy duty foto tripod adapter the SPEZIAL ASTRO ED can be mounted onto any foto tripod which offers a standard 1/4inch or 3/8inch thread. The use of a tripod is also highly recommended at a high magnification of 20x to obtain a steady image. FEATURES Binoculars for astronomical and landscape observations Extremly high light gathering capacity  High magnification for for distant objects Fully multi coated optics Waterproof and ARGON gas filled against fogging Magnification: 15x / objective lens diameter: 70mm Individual eyepiece focus and foldable rubber eyecups Highly corrected eyepieces for crisp images from edge to edge Ergonomic rubber armouring - protected against shocks Dimensions: 310x250x100mm / weight: 2700g Heavy duty foto tripod adapter included SCOPE OF DELIVERY Binocular Photo tripod adapter Neckstrap Dust covers CaseInstruction manual

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

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