LUNT LS300THaDS/B3400 H-alpha solar telescope

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 230mm 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 230mm without central obstruction and 1610mm 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: 230mm (no central obstruction)Focal length: 1610mmBandwidth: 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 reductionTwo tube ringsDovetail bar with Losmandy level for astronomical mountsWeight: 35kgLength: 165cmSCOPE OF DELIVERYLS230THa Double-Stack H-alpha solar telescope2x Pressure-TunerElectronic pressure tuner controllerB3400 blocking filter in straight extension tubeFeather-Touch focuserTube rings with dovetail bar (Losmandy level)Manual

NEW – now including a high-quality aperture Solar-filter for safe observation of sunspots, eclipses and planet transits. Great telescope for night and solar observation.In the past few years the BRESSER Newton telescopes have become the standard workhorse for Deep Sky astrophotography. We now proudly present the second generation of this telescope, the BRESSER NT-203s/800 with Hexafoc and fast parabolic main mirror. The Bresser NT-203s/800 f3.9 will deliver you deeper images due to its - compared to 8" f/5 systems - oversized primary mirror and therefore faster optical system with the same exposure time. The big 85 mm secondary prevents vignetting for optimal illumination The excellent 2,5" Hexafoc focuser also does not cause vignetting due to its large diameter and makes focussing a joy - the smoothness and shifting-free operation sets new standards in this price class. This groundbreaking focuser, tube rings with 44mm universal standard dovetail and camera mounting feature and a high-end finderscope with haircross and laser-engraved scale  leave nothing to desire even for demanding astrophotographers. The NT-203s/800 Hexafoc has a classical tube construction with an aluminium tube. The focuser can be upgraded with a 10:1 reduction (part No. 0625720) without problems. Also prepared for use with the HR Coma Corrector (part No. 0510330) which eliminates coma, field-curvature and astigmatism. BRESSER EXOS-2 GoTo Equatorial Mount. Mount, tripod and hand box with computer. This German mount has tracking motors in both axes that follow celestial objects very precisely. The handbox with GoTo works reliable and controls the mount in every situation. Precise ball bearings in both axes ensures minimal backlash at all nine possible tracking speeds. The battery pack (12 V) is conveniently fastened to the tripod shelf and takes eight size D batteries. The mount rests on a very tough and rigid stainless steel tripod and can take optical tubes of up to 13 kg. GOTO Stargazing at the push of a button ! The Startracker GoTo System enables beginners to start astronomical observations in just a few minutes, and guides you to objects that are hard to localize through a standard finder scope.Just push the button and the GoTo System will find planets, nebulae or galaxies for you and position your telescope automatically and precise. The GoTo System database includes thousands of astronomical objects. The Messier mount with GoTo System allows you to observe without tedious searching, or image faint objects that are hard to find in a standard finder scope.Please note: Reflector telescopes with optical design Newton are very good for astronomical observing at the starry night sky. But these telescopes are not well usable for observing landscape and nature during daylight. Therefore we suggest BRESSER refractor (lens) telescopes for landscape and nature observing.CHARCTERISTICS OPTICS Optical design: reflector telescopeMirror diameter: 203mm / focal length: 800mm / F/3.9Maximum recommended magnification: 406xTelescope for night and solar observing Very high quality Hexafoc focuser with 2.5" free inner diameter Diffraction limited optics with parabolic main mirror 8x50 straight through viewfinder with reticle Optimized finder socket for comfortable use Cradle rings with handle and integrated piggyback camera holder (1/4 thread) Smartphone adapter for celestial navigation included Dovetail plate with stainless steel rail Can be connected to SLR cameras (optional T2 ring required) 50.8mm (2) to 31.7mm (1.25) adapter with integrated T2 thread (T2-adapter ring for your camera is needed) Backfocus fully inward focused: 60mm 85mm secondary mirror for optimal illumination Large knobs for primary and secondary mirror adjustment Tube without accessories: 8.7 kg - Tube with all accessories mounted: 11.5 kg CHARACTERISTICS MOUNT Stable parallactic mount with fine drive in both axes Ball bearings in both axes for more precise movements Stable height adjustable stainless steel tripod ( Min. 69cm / Max. 109.5cm ) Load capacity up to 13 kg payload Circular bubble for easy horizontal alignment GoTo Mount with motors and hand box controller, for easy finding and guiding moon, planets, stars and much more ST-4 compatible autoguider interface Pole height scale for setting the latitude Scaled graduated circular rings to facilitate finding objects using a star atlas or planetarium software Pole finder scope with optional illumination ( item no. 4964212 ) Tripod weight: 4.7 kg Mount weight: 6.7 kg (without counterweight) Total weight incl. counterweight: 20.4 kg Batteries: not includedSCOPE OF DELIVERY Optical tube 26mm Super Plössl eyepiece (31.7mm / 1.25") Integrated 31.7 mm and T2 adapter Prism rail with stainless steel clamping surface Adapter for 50.8 mm (2") eyepieces 8x50 optical viewfinder Rotatable star map Aperture solar filter Tube clamp with handle and camera holder Smartphone adapter for celestial navigation Adjustable polar finder scope with optional illumination Astronomy PC software Stellarium (via download) Equatorial EXOS 2 GOTO mount with stainless steel tripod and Startracker handcontroller Stainless steel tube field tripod with accessory tray 2 x 4.5 kg counterweight Battery pack (batteries not included)

With the BRESSER 11-Day 4Cast CV WiFi Weather Station 7-in-1 you’ll never find yourself left out in the cold by the weather again. The weather station, with 7-in-1 solar outdoor sensor, supplements the on-site data with plenty of practical information from the ProWeatherLive platform. A special highlight: the extensive weather forecast, with the outlook for the next 11 days and a detailed overview of the next 24 hours. Information on local visibility and cloud cover also helps passionate amateur meteorologists to keep a close eye on the weather. You’ll always be up to date, whenever and wherever you are – choose to view your data, incl. max./min. values, conveniently on the clear display of the weather station, in the ProWeatherLive app or in a web browser. Environmentally-friendly and user-friendly – weather station with solar sensor Quick to install and connect to the base station, the 7-in-1 wireless sensor reliably supplies data measured directly on site, including temperature, humidity, wind speed, wind direction, precipitation amount, UV level and light intensity. Meanwhile, the power of the sun ensures smooth operation via the large solar panel. The measuring device needs about 4 hours of direct sunlight (100,000 lux) a day. There isn’t much sun around? Simply insert 3 AA batteries as a back-up during installation and they will take care of the power supply. A comfortable indoor climate with the WiFi weather station Outdoors, the weather station puts in a great performance with anemometer and rain gauge as well as thermometer and hygrometer, UV and light sensors. What about the climate indoors? A thermo-hygro sensor has been integrated into the base station so that you can always keep an eye on the indoor temperature and humidity. The trend display, which can be called up directly on the display, is perfect for preventing excessively dry air or mould. Trends you will be able to see include development of the room climate, so that you can respond by introducing fresh air or by humidifying if you need to. In addition, with ProWeatherLife, you can receive notifications when the indoor temperature and humidity change, as well as important weather parameters. Optional extensions for your WiFi weather station Want to adapt your weather station to your needs? No problem! It comes with a range of optional extensions through the following additional sensors (not included): Optional thermo-hygro sensors for indoor climate Optional soil and pool sensors for the garden Optional water detector and lightning sensors Optional PM2.5/10, CO2 and HCHO+VOC sensors for air quality For the perfect extensions, browse our BRESSER accessories to see which additional sensors are compatible (not included). Stay up to date on your local weather and indoor climate easily, whenever and wherever, with the BRESSER 11-Day 4Cast CV WiFi Weather Station 7-in-1. BASE STATION FEATURES Graphic weather forecast for the next 11 days (today and next 10 days)/for 24 hours (now and next 23 hours) from the ProWeatherLife server 11-day forecast for maximum and minimum temperature, as well as average temperature and chance of precipitation from the ProWeatherLife server Local visibility and cloud cover via the ProWeatherLive server WiFi connection for publishing local weather data on ProWeatherLive and up to 2 other weather platforms (e.g. AWEKAS) Indoor temperature (°C/°F) and humidity with trend Displays precise measurement data from the 7-in-1 solar outdoor sensor (Outdoor temperature and humidity, wind speed, wind direction, precipitation, UV level, light intensity) Trend graph for air pressure, precipitation, temperature (indoor/outdoor) or humidity (indoor/outdoor) on the display Weather index (perceived outdoor temperature, dewpoint, windchill factor and heat index) Wind gusts and average wind speed, Beaufort scale (wind speed scale) Sunburn time display Air pressure Set weather notifications via the ProWeatherLive server Maximum/minimum value memory Displays the time, date, day of the week and moon phase Sun/moonrise, sun/moonset Alarm clock with frost alarm WSLink app for easy connection to WiFi and weather platform, weather data calibration and for firmware updates 7 languages for day of the week (EN, DE, FR, ES, IT, NL, RU) Supports additional optional sensors Power supply: Mains plug (included), CR2032 back-up battery (not included) FEATURES OF 7-IN-1 OUTDOOR SENSOR Measurement of temperature, humidity, wind speed, wind direction, precipitation quantity, UV level and light intensity Powered via a large movable solar panel In case of insufficient sunlight operation via 3x AA batteries (not included)Range: 150 mSize: 390 x 174 x 465 mm SCOPE OF DELIVERY Base station Solar-powered outdoor sensor Power adapter Instruction manual

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, B500 blocking-filter, and Helical focuser.The LS40THa/B500 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 B500, this is good 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: B500 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 TelescopeB500 blocking filter in star-diagonal housing1.25 inch Helical focuserDovetail bar (GP level)Sol-SearcherInstruction manual

Compared with the Professional 6-in-1 Wi-Fi Weather Station (item no. 7002540000000), the new BRESSER Professional 7-in-1 Wi-Fi Weather Station comes with an additional base station and has a new light intensity measurement function. The 7-in-1 weather station measures a wide range of meteorological data directly in your vicinity, which can be viewed remotely via the internet. If you require additional functions, the weather station can be expanded with a range of optional sensors: EXPLORE SCIENTIFIC Soil moisture and soil temperature sensor (item no. SM60020000000) EXPLORE SCIENTIFIC Floating pool thermometer (item no. SP60010000000) FEATURES OF BASE STATIONS 2 Base Stations includedWi-Fi connection with internet time synchronization and support for firmware updatesAutomatic or manual time setting Publish your weather data on Wunderground or Weathercloud Indoor temperature (°C/ °F) and humidity (%) Outdoor temperature (°C/ °F) and humidity (%) Light intensity (Klux / Kfc / W/m²) Displays the current UV index, exposure level and recommended protection Displays sunburn time (mins) based on current UV level Wind direction and speed (m/s; km/h; Knoten; mph) Beaufort index (scale for measuring wind speed) Air pressure with 24-hour history (hPa/inHg/mmHg) Rainfall with history (day/week/month) Graphical weather forecast for next 12-24 hours Weather index (‘feels like’ function, dew point, heat index, wind chill factor) Trend indicator shows the weather trends for the next few minutes Visual comfort level indicator for room temperature and humidity Phases of the moon Sunrise and sunset times Alarm with snooze function (5 minutes) Weekday alarm Min/max memory (up to 24 hours) Ice/frost warning LED backlight, amber-coloured Wall bracket and table stand Supports a 7-in-1 sensor and up to 7 indoor sensors (includes 1x 7-in-1 sensor and 1x indoor sensor) Dimensions: 215 x 172 x 29 mm and weight: 639 g Power supply: Power adapter and 6x AAA batteries as backup batteries (batteries are not included) Security type: supports WPA3 encryption as of firmware 1.09 FEATURES OF 7-IN-1 OUTDOOR SENSOR Measurement of temperature, humidity, wind speed, wind direction, precipitation quantity, UV level and light intensity Powered via a large movable solar panel In case of insufficient sunlight operation via 3x AA batteries (not included) Range: up to 150 m Dimensions: 390 x 174 x 465 mm FEATURES OF INDOOR SENSOR Measures the indoor temperature and humidity Transmission range: up to 150 m RF frequency: 868 MHz Transmission interval: 60 seconds Wall bracket and table stand Power supply: 2x AA batteries (not included) Dimensions: 60 x 113 x 39.5 mm and weight: 144 g SCOPE OF DELIVERY 2x base stations with stand 7-in-1 multi-sensor with mounting materials Thermometer/hygrometer Power adapter Instruction manual