LUNT DSII/SFPT double-stack module for LS80MT & LS100MT

100mm H-alpha double-stack solar filter, for all LS100FHa filter-systems and LS100THa telescopes.This double-stack Etalon is compatible to all Lunt Solar Systems LS100FHa filter-systems.Also the LS100THa H-alpha solar telescopes can be very easily double-stacked by using this 100mm double-stack filter. This combination offers high quality double-stacking to the observer.Adding this additional double-stack Etalon system will reduce the bandwidth to ~<0.55 Angstrom. So you will have much more contrast and more details on the sun will be visible.Please note: The LS100FHa double-stack filter is only compatible with the old LS100THa H-alpha telescopes, but not with the new LS100MT multipurpose telescopes!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 <0.7 Angstrom.FEATURESAperture: 100 mmBandwidth double stacked: <0.55 AngstromTuning: tiltable EtalonHousing diameter: 162 mmLength: 101 mmWeight: 2.75 kgFront thread: M120x1.5 female threadRear thread: M120x1.5 male threadSCOPE OF DELIVERYLS100FHa solar filterTransport caseInstruction manual

​The LS100MT solar telescopes can be upgraded with this optional conversion kit. This allows the telescopes to be used as 3-lens ED apochromatic refractor for observation and photography of the starry night sky.The H-Alpha system of the LS100MT telescopes can be easily replaced by this conversion kit. The conversion kit offers a very high quality and solid R&P focuser. Even the heaviest cameras or other accessories will be hold without any problems and can be focused sensitively by the integrated 10:1 reduction.Simply loosen three knurled screws holding the H-Alpha unit including the focuser at the LS100MT. Attach here the new focuser, and your LS100MT is transformed into a full 3-lens apochromatic telescope. The new focuser offers 95mm focusing way with backlash- and tilt-free mechanics also when using heavy accessories. A 2 inch ring-clamp is directly at the focuser, and an adapter to 1.25 inch also with ring-clamp is included in delivery.But this is not all: With this conversion kit Herschel-wedges or Ca-K modules can be used at the LS100MT telescopes for solar observation. This makes it possible to observe the sun in H-alpha, in Calcium-K wavelength light, or in White-Light - with one and the same telescope!This conversion kit turns the LS100MT into a real all-round telescope!FEATURESBacklash- and tilt-free mechanics95mm focusing way10:1 reduction2 inch and 1.25 inch ring clampingSCOPE OF DELIVERYHigh quality 2 inch focuser with adapter to LS100MT telescopesAdapter from 2 inch to 1.25 inchInstruction manualLS100MT telescope not included! Can only be used together with a LS100MT solar telescope. This conversion kit is absolutely necessary if a LS100MT telescope should be used for night sky observation.

Please note: This telescope is made to customer specifications. Therefore special conditions apply for this telescope and online ordering is not possible. Please contact our customer service if you would like to order this telescope.Complete H-alpha solar telescope with 300mm aperture and a bandwidth of <0.5 Angstroms. With Feather-Touch focuser, innovative air pressure tuning system and B3400 blocking filter.A extremely large telescope for observing the Sun in H-alpha wavelength, a precisely adjusted refractor with a free aperture of 300mm without central obstruction and 2128mm focal length. The telescope is equipped as standard with a double-stack system, two internal Etalon filters with the innovative air pressure tuning system Pressure-Tuner achieve a bandwidth of <0.5 Angstroms. The Pressure-Tuner system ensures a homogeneous H-alpha image and optimal performance. The Etalons are safely installed inside the telescope. The air pressure tuning system is precisely controlled by an electronic pressure tuner controller.Blocking Filter is the B3400. The B3400 is well suited for imaging the Sun. For visual observation we recommend an additional zenith mirror. The straight extension tube, in which the blocking filter is installed, is equipped as standard with a 2" eyepiece holder and also with an adapter for 1.25". Focusing is done by the legendary Feather-Touch focuser from Starlight-Intruments with 10:1 reduction.FEATURESAperture: 300mm (no central obstruction)Focal length: 2128mmBandwidth: 2 internal Etalons with <0.5 AngstromsTuning: Air-pressure tuning systemElectronic pressure tuner controllerBlocking filter: B3400 with 2" and 1.25" connectionFocuser: Feather-Touch focuser from Starlight-Instruments with 10:1 reductionDovetail bar with Losmandy level for astronomical mountsWeight: ?kgLength: ?cmSCOPE OF DELIVERYLS300THa Double-Stack H-alpha solar telescope2x Pressure-TunerElectronic pressure tuner controllerB3400 blocking filter in straight extension tubeFeather-Touch focuserDovetail bar (Losmandy level)Manual

You will be able to buy this NEW BRESSER PRODUCT from December 2024!Start stargazing with unprecedented ease: Discover the wonders of the night sky swiftly with the BRESSER PushTo NT-76/350 Smart Telescope. The advanced app turns navigating the stars into child's play. Smart all-in-one telescope for a quick start in astronomy Moon, planets, star clusters, and bright nebulae: The BRESSER PushTo Navigation Smart App allows you to gaze through the telescope and admire the universe’s marvels within seconds. Eager to capture the moon’s beauty in photos? Then easily embark on your astrophotography journey with the included smartphone adapter. Additionally, the solar filter enables you to safely observe and photograph our sun by day. The PushTo NT-76/350 is your ultimate versatile telescope for both day and night. Get started right away – with the PushTo Smart Telescope The simple operation and minimal setup make this high-quality reflector telescope a great choice for beginners. Just download the BRESSER PushTo Navigation Smart App, quickly initialize the telescope, and your current viewing direction will appear with a crosshair on your mobile device’s star map. This is made possible by the telescope’s built-in sensors and a Bluetooth connection to your device. And for easy manual adjustment, slip clutches are installed in both axes. Smart navigation of the night sky with the PushTo telescope Once the telescope is set up, you can immediately start exploring the cosmos. Simply choose any celestial body with a touch on the PushTo Navigation star map. You’ll see directional arrows in the app, which adjust in size and colour as you close in on your target, ensuring you navigate to it effortlessly. The telescope’s movements seamlessly update the star map in real-time. Once you’ve reached your target, you can immediately admire the celestial spectacle. You also have access to a comprehensive database for selecting your next viewing target. Want an even easier experience? Choose from pre-set sky tours for spring, summer, autumn, and winter to find the perfect viewing guide. Use the convenient save function to quickly revisit your favourite sights. Versatile optics on a compact mount The telescope’s 76 mm aperture offers high-contrast, bright views of the sky’s most popular sights. The 350 mm focal length also permits expansive views of large celestial objects like bright nebulae and open star clusters. Look forward to exciting images of moon craters and Jupiter’s moons, and even Saturn’s ring is perceivable through this Smart Telescope. The BRESSER PushTo NT-76/350 is a super-compact tabletop telescope, making it ideal for quick observations from home or on a trip to darker locations. Flexible power options Power the telescope with 4 AA batteries or connect it to a power bank or adapter (not included) using a USB-C cable.FEATURES PushTo NT-76/350 reflector telescope with Bluetooth PushTo Navigation Smart App free to download Easy finding of and pointing at objects using the app Telescope viewing direction displayed on the screen Motion changes are transmitted in real time Large object database and sky tours available Reflector telescope with a 76 mm aperture and 350 mm focal length Powerful wide-angle optics with which objects are clearly visible Accessory tray integrated into the telescope mount Telescope used as a compact tabletop device Telescope for night and solar observation Snapshots of the moon and sun possible via smartphone Required batteries: 4x AA batteries (not included) Alternative power supply: USB-C cable + power bank or adapter (not included) Complete accessories and solar filter included Smartphone holder permanently mounted on the telescope tube Additional smartphone holder for eyepiece photography included Operating system: min. Android 10 / Windows 10/11 SCOPE OF DELIVERYBRESSER PushTo NT-76/350 Smart Telescope Eyepieces: 6 + 20 mm (1.25 inch) Barlow lens, 2x Compass with bubble level Smartphone holder for eyepiece photography Aperture solar filter Instruction manual

​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 M39x0.75 female 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. Normal T2 extension sleeves can be used to achieve this distance.On the telescope side, the following connections are provided: 2 inch socket, M54x0.75 male thread, M63x1 male thread and M68x1 male thread.FEATURESShortens focal length of F/7 ED telescopes by a factor of 0.8xFlattened field of view for photographyT2 thread for camera connectionWorking distance 50 to 55mm2 inch socket and M54x0.75 thread for connection to telescopesAdapter to M63x1 and M68x1Weight only reducer/field-flattener: 0.25kgWeight together with adapter to M63 & M68: 0.36kgSCOPE OF DELIVERY0.8x reducer/field-flattenerAdapter to M63x1 and M68x1

​​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. 3-lens apochromatic telescope with FPL-53 glass, 100mm aperture and 714mm focal length - excellent image quality for H-Alpha solar observation and also for observing the starry sky at night.With innovative air pressure tuning system and good 2 inch (50.8mm) R&P focuser. Delivered without blocking filter, use for H-Alpha sun observation only possible with additional blocking filter!This telescope is supplied without blocking filter. We offer a wide range of additionally available blocking filters in different sizes, either mounted in a 90° star-diagonal housing or in a straight extension tube. These are all usable with this telescope.ATTENTION: Without such an additional blocking filter you cannot use this telescope for H-alpha solar observation!Solar observing in H-alpha:The LS100MT is a telescope for observing the sun in H-alpha light, with 100mm free aperture (no central obstruction) and 714mm 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.This version of the LS100MT is delivered without blocking filter. Therefore an additional blocking filter is required to use the telescope for solar observation in the H-alpha wavelength. You can choose from the wide range of Lunt Solar Systems blocking filters and decide for example if you want a blocking filter in a 90° star-diagonal housing or one in a straight extension tube.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 0551430) the 3-lens apochromatic refractor can then be used as a normal telescope with 100mm aperture and 714mm focal length for observation and photography of the night sky. The FPL-53 triplet lens offers an outstandingly low colour aberration image. Common 2 inch star diagonals can be used at the high quality R&P focuser of the conversion kit 0551430.Please note that the optionally available conversion kit 0551430 is absolutely necessary if the telescope should be used at night.More applications:With additionally available accessories the LS100MT offers even more possibilities!- Double-StackThe LS100MT 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 LS100MT to observe and photograph super-granulation and other effects visible in this wavelength on the sun.This makes the LS100MT a completely universal usable apochromatic telescope of highest quality!FEATURES3-lens APO refractor, FPL-53Aperture: 100mm (no central obstruction)Focal length: 714mmBandwidth: internal Etalon with <0.7 AngstromTuning: air pressure tuning system Pressure-TunerSupplied without blocking filter, additionally available blocking filter absolutely necessary!Focuser: R&P with 10:1 reductionTwo tube-ring with handleSol-Searcher installed inside handleDovetail bar at GP-level for astronomical mountsWeight: 6.8kgLength with dew-shield: 78cmLength with removed dew-shield: 65cmSCOPE OF DELIVERYLS100MT Multipurpose TelescopePressure-Tuner2 inch R&P focuser with 10:1 reductionTube rings with dovetail barTransport case (78x33x23cm)Instruction manualConversion kit for observation of the starry night sky (0551430) 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. 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!