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

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

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

The control knob is used together with the manual AP fine adjustment module for making fine adjustments to the R.A. and DEC.The control knob is simply attached to the worm shaft and stays in place automatically.Can be used on the GP, GPDX, GP2, GPD, Porta II, Mobile Porta and AP mount system. FEATURESCompatible with AP, GP, Porta and GPD mountsDimensions: Diameter: 40x51 mmWeight: 18 gDELIVERY CONTENTVixen fine adjustment knob

50mm H-alpha solar filter system with B1200 blocking filter, for front mounting at telescopes with 2" 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 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: 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 2" focuserMaximum focal length of telescope: 1080 mmSCOPE OF DELIVERYLS50FHa solar filterB1200 Blocking Filter (for 2" focuser) in star-diagonalTransport caseInstruction manual