LUNT LS60FHa/B1800d1 H-alpha solar filter

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

60mm H-alpha double-stack solar filter, for all LS60FHa filter-systems and LS60THa/LS60MT telescopes.This double-stack Etalon is compatible to all Lunt Solar Systems LS60FHa 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: 60 mmNo central obstructionBandwidth double stacked: <0,55 AngstromTuning: tiltable EtalonHousing diameter: 95 mmLength: 85 mmWeight: 0.85 kgFront thread: M90x1 female threadRear thread: M90x1 male threadSCOPE OF DELIVERYLS60FHa solar filterTransport caseInstruction manual

​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 B1200 blocking filter.Solar observing in H-alpha:The LS80MT/B1200 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 B1200. The B1200 is good for visual solar observing. Also solar imaging is possible by cameras with small sensor chip. We recommend a LS80MT with B1800 blocking-filter by using cameras with large sized sensor 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. 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: B1200 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-TunerB1200 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!

The A70Lf refractor is an ideal entry-level model for beginner astronomers. Thanks to Vixen’s quality controls, the 70 mm lenses are produced to an b>outstanding quality standard. The refractor comes with two Plössl eyepieces (6.3 mm and 20 mm) and a 90° star diagonal. The A70lf is ideal for exploring the b>moon and the brighter planets. On moonless nights you can observe the Andromeda Galaxy or Orion’s Belt. The 6x24 viewfinder makes locating celestial objects very quick and easy. We recommend using this product with the MINI PORTA mount. The mount is lightweight and easy to use. FEATURES Perfect entry-level model for beginner astronomers The 70 mm lenses are produced to an outstanding quality standard 900 mm focal length T2 camera connector available WHAT’S INCLUDED Telescope 31.7 mm star diagonal PL20mm & PL6.3mm eyepieces 6x24 viewfinder

The Pulsar Observatory Dome provides a high quality, secure and practical housing for your telescope. Providing excellent weather protection for you and your telescope, it allows you to have your instrument ready for use at all times. Whether imaging or visual, having the convenience of a permanent set up adds greatly to your enjoyment of exploring the night sky. Ideal for up to 12" (30cm) aperture telescopes and a variety of installations, also ideal for societies, schools, etc. The Pulsar Observatory dome is sectional in design, and is delivered in kit form. Alternatively, we can provide a complete installation service for you. Please Ring for details. The Pulsar Observatories 2.2 metre full height dome benefits from many advanced features.FEATURES Finest quality, weather proof GRP finishHigh quality locking system Simple design for self assembly Motorised dome rotation available Motorised dome shutters available Accessory storage bays availableAvailable in white (other colours - please call)Dimensions: Total Height approx 2.47 metres Dome Diameter approx 2.2 metres Door Height approx 1.1 metres Dome Aperture approx 0.6 metresAvailable in white - other colours e.g. green on request CUSTOMER REQUIREMENTS: Before you place the order of any Observatory Dome system please make sure that your department of planning and building inspection does agree. Probably you need a certain building permission.The customer will need to provide a level concrete base to ensure secure fixing and dome operation. Have a look to our installation guide which gives you an example for a suitable base dimension. Various upgrades and accessories are available. The 2.2 metre Observatory Dome is available in white - for other colours please call. We can also supply a steel pier, that will complete the permanent installation of your telescope, giving you more space within the dome than your existing tripod. We can also fabricate custom height piers to suit your requirements. VIDEO:  https://www.pulsarastro.com/video-guides-27-w.aspFAQ:  https://www.pulsarastro.com/drawings-and-guides-24-w.aspIMPORTANT NOTES:THIS PRODUCT CAN`T BE ORDERED ONLINE BUT BY PHONE CALL OR E-MAIL.  AFTER PLACING THE ORDER YOU WILL RECEIVE A SEPARATE SALES CONTRACT FROM BRESSER.THERE WILL BE A DELIVERY CHARGE FOR THE OBSERVATORY, PRICE ACCORDING TO LOCATION - PLEASE E-MAIL US OR RING FOR DETAILS. AVAILABLE FROM STOCK IN GERMANY OR FOR CUSTOMIZED PRODUCTS THE DELIVERY TIME IS: 6-8 WEEKS APPROX. Save cash money ! PULSAR domes are transported safely on oversized, individually manufactured pallets with special dimensions, which quickly make transport by freight forwarder expensive. Therefore, it would be possible for all customers to pick up their own PULSAR dome with their own transporter or trailer from BRESSER GmbH Rhede/Westphalia, GERMANY, by arrangement.

The LS130MT/B3400 telescopes can be upgraded with this optional Ca-K module and conversion kit. This allows to explore the Sun at different wavelengths with one and the same telescope, and the telescope can also be used for observing and photographing the starry night sky.You can replace the H-Alpha system of the LS130MT/B3400 telescope with this conversion kit with Ca-K module in just a few easy steps. This makes it possible to observe the Sun in H-alpha or in the light of the Calcium-K wavelength - with one and the same telescope!This Ca-K module was specially designed for the LS130MT/B3400 H-Alpha telescope. It is delivered as a set together with the conversion kit with a completely new focuser. Simply loosen three knurled screws at the LS130MT/B3400, which hold the H-Alpha unit together with the focuser. Here the new focuser will be fixed with the Ca-K module, and you have already made your LS130MT a adequate Ca-K telescope. But that's not all: With the new focuser, without the Ca-K module, the LS130MT/B3400 can also be used as a 3-lens apochromatic telescope for astronomical observations and photography at night!Or you can observe the Sun in White-Light together with a LUNT Herschel wedge!This conversion kit turns the LS130MT into a real all-round telescope!This conversion kit can also be used at the LS130MT/B1200 and LS130MT/B1800 telescopes, but it is not necessary there. This conversion kit is only necessary at the LS130MT/B3400, because at this telescope the blocking filter is fix installed inside the focuser.SCOPE OF DELIVERY2" Ca-K Module for LS130MT telescope2" focuser with 10:1 reduction and adapter to LS130MT telescopeInstruction manualLS130MT telescope not included! Can only be used together with an LS130MT solar telescope.

BRESSER Solar Filter 153mm for Messier TelescopesCategory: Spare Part for Messier Telescope SeriesDescription: The Solar Filter with a diameter of 153mm is suitable for Messier Telescopes (models 4830100 NT130, 4730107 NT130, 4716413 DOBSON 5''). It protects the eyes from harmful sunlight and is suitable for the BRESSER Messier Telescope series. Please check compatibility using the product number on your optical instrument.