LUNT LS100MT/B3400R&P Multipurpose APO Telescope for Sun + Night-Sky

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

A useful extension to your BRESSER weather station, or also ideal as a practical standalone solution: This PM2.5/PM10 particulate meter will help you to keep track of the air that you breathe. The high-precision meter reliably detects two types of health-relevant particulate matter that causes air pollution: particles with a diameter of less than 10 μm (PM10) and less than 2.5 μm (PM2.5). Measurements – the current reading and the average particulate concentration from the past 24 hours – are displayed on the built-in display and on your weather centre. The base station can be placed at a distance of up to 150 metres from the meter. Compatible with the following BRESSER weather stations: 7003210, 7003220, 7003230, 7110300 FEATURES High-precision PM2.5/PM10 meter Can be used alone or with select BRESSER weather stations LCD screen for displaying the current reading and the PM2.5/PM10 concentration from the past 24 hours Battery level indicator 4 available channels Transmission frequency: 868 MHz Range of up to 150 m Power supply: 3 rechargeable AA batteries (included) or USB port (cable included) DELIVERY CONTENT PM2.5/PM10 air quality meter 3 rechargeable AA batteries USB cable Instruction manual

With the BRESSER Solar Eclipse Glasses, you can experience one of nature's most captivating events safely and effortlessly. Whether it's an annular, total, or partial eclipse, the sight of the moon crossing in front of the sun is always breathtaking. Designed to protect your eyes, these specialist glasses are crafted in the USA to meet the highest safety standards. BRESSER Eclipse Glasses: Your safe window to the sun The glasses feature premium-quality white light filter film that effectively blocks harmful UV and IR rays. This ensures a bright and natural yellow image of the sun. Thanks to their sturdy construction, these glasses are built for repeated use. You can even use them to spot large sunspots or enjoy the rare sight of planes flying in front of the sun. Be prepared for the next eclipse and enjoy safe solar viewing with the BRESSER Solar Eclipse Glasses. FEATURES Specialist glasses for safe solar eclipse viewing Provides a natural, bright yellow image of the sun Ideal for safe visual solar observation Durable and resistant to damage Ready to use immediately Complies with EN ISO 12312-2:2015 standards, verified by independent testing at ICS INC. Laboratories SCOPE OF DELIVERY 1000x Solar Eclipse Glasses

Calcium-K module in star diagonal, for using normal astronomical telescopes up to 100mm aperture and up to 1620mm focal length as Ca-K solar telescopes.This Calcium-K module transforms your normal astronomical refractor telescope into a Ca-K solar telescope. It will be very easy: Put the Ca-K module into the 2" focuser of your telescope, and you are ready for solar observing in the light of the Calcium-K wavelength.Internal narrowband filters allow for a <2.4 Angstrom bandwidth. For refractor telescopes up to 100mm aperture and up to 1620mm focal length. For imaging it will be better to use a bigger Ca-K module.The Ca-K module is in a 90° star diagonal, for 2" focuser on the telescope side, and with T2 thread and 1.25" eyepiece connection on the eyepiece side.All needed filter parts are integrated inside the compact module. There are no additional filters needed.The Ca-K wavelength is at the edge of the visible light spectrum for human eyes, so for many people visual observing is difficult. However, all details could be captured photographically. Therefore the Ca-K Module is optimized primarily for imaging.FEATURESBandwidth <2.4 AngstromUsable at telescopes up to 100mm aperture and 1620mm focal90° star-diagonal housing2" slide tube for 2" focuserConnection for 1.25" eyepiecesT2 thread for camera connectionSCOPE OF DELIVERYCa-K module in 90° star diagonal for 2" focuserIntegrated blocking filter B1800 for telescopes up to 1620mm focal lengthInstruction manual

Giant binocular for observing the starry sky, nature and landscape. Observe the beauty of the starry sky at night and distant objects in nature during the day. Globular star clusters, glowing gas nebulae, the moon with its craters and even planets can be observed wonderfully on a clear night. But also all other distant things in nature and landscape, even ships and airplanes can be seen in detail. With the all-round binoculars of the EXPLORE SCIENTIFIC BT series, you can get up very close. Thanks to the large, light-gathering lenses and the professional coatings on all lens surfaces, these binoculars produce bright and brilliant images even at night and at twilight, providing a special viewing pleasure. The comfortable 45 degree viewing angle allows fatigue-free use, even when the binoculars are tilted upwards towards the zenith.  A large binocular can also be called a double refractor telescope Binoculars such as these can really be described as a double telescope.  In this configuration, the full light gathering power of one single telescope is available to each eye. Experience a whole new dimension of observing as a consequence. Objects are reproduced almost vividly in these binoculars and observing with both eyes is a very relaxing experience. Last but not least, this comfortable way of observation increases the recognition of the finest details (particularly in fainter deep sky targets) and effectively prevents eye fatigue. Extremely robust binoculars with magnesium housing, sealed and filled with nitrogen  The BT series binoculars are designed for tough outdoor use. The IPX6 sealed and nitrogen-filled design effectively prevents fogging of the internal optics even under difficult weather conditions. The very light magnesium housing saves weight and makes it easy to handle. Two EXPLORE SCIENTIFIC 20mm eyepieces of the 62 degree LER series already included. EXPLORE SCIENTIFIC is an established manufacturer of extremely high-quality eyepieces in the astronomy scene. An optical system is only as good as its weakest component. Therefore we have decided to deliver these giant binoculars with a pair of quality eyepieces of the 62 degree LER series. With an apparent field of view of 62 degrees and a focal length of 20mm, the BT-120 binoculars produce a 33x magnification. Thus these wide angle eyepieces offer a very good overview (field of view 1.8 degrees) at moderate magnification. The large interpupillary distance of these LER (long eye relief) eyepieces of 15mm and soft silicone eyecups, which can be turned inside out, also guarantee a comfortable and relaxed view. For astronomy, a flat and sharp image field is advantageous and offers a particularly impressive viewing experience even during the day. Due to the waterproof design and the argon filling, these eyepieces are absolutely durable and easy to clean. Interchangeable eyepieces with 1.25 inch / 31.7mm plug-in diameter Adjust the magnification and field of view to your individual needs and choose from a wide range of available eyepieces. All eyepiece types with a plug-in diameter of 1.25 inch / 31.7mm can be used with the binoculars of the BT series. Especially recommended are EXPLORE SCIENTIFIC eyepieces of the 62 and 82 degree series with focal lengths from 8 to 26mm (see item No. 02188xx and 02196xx). The magnification can be varied from 25x to 75x (focal length binoculars : focal length eyepiece = magnification). The eyepieces are held in the binoculars by a precise brass compression ring clamp and guarantee a tilt free position.  Use of colour and nebula filters for astronomical observations Increase the contrast and visibility of objects and details by screwing the corresponding filters directly into the thread of the eyepiece sleeves. The use of colour and nebula filters must of course always be done in pairs. Suitable are all EXPLORE SCIENTIFIC screw filters with 1.25inch / 31.7mm diameter (see item No. 03102xx)  Comfortable 45 degree view and helical single focus The 45-degree viewing angle allows a relaxed observation position even when the binoculars are tilted strongly. Also the individual interpupillary distance can be adjusted in a range from 54 to 76mm. With the fine helical individual focusing, precise focusing is achieved effortlessly. Extendable dew caps The integrated dew caps can be removed in high humidity and cold conditions. This avoids fogging of the outer objective lenses and effectively shields additional control light coming in from the side. Integrated carrying handle A metal carrying handle located at the center of gravity facilitates transport and ensures a secure hold during tripod assembly. Suitable tripods and tripod connectionWhen using these large binoculars, a sturdy photo tripod with an appropriate load capacity is highly recommended. The connection is made via two 1/4 inch or one 3/8 inch threaded holes (standard photo tripod thread) in the tripod adapter of the binoculars. The ideal solution is to use the optional available EXPLORE SCIENTIFIC U-Mount with field tripod (item No. 0114300). This is specially designed for the large binoculars of the BT series and carries these binoculars absolutely securely. The excellent support mechanism, with adjustable friction in both axes allows easy moving and tracking. The binocular position is kept stable depending on the adjusted friction intensity. Vibrations are reduced to a minimum by the massive construction of the U-Mount and the large stainless steel tripod. Even at high magnification there are no discernable vibrations and this allows the finest details to be observed in a chosen target.FEATURES Large binoculars for observing the starry sky, nature and landscape Observe globular star clusters, glowing gas nebulae, the moon with its craters and even planets Also wild animals, ships and airplanes can be seen in detail Highly light gathering lenses produce a bright and high-contrast image All-round binoculars, but especially suitable in twilight and at night The comfortable 45 degree viewing angle allows fatigue-free use One complete lens telescope with the full light gathering power is available per eye Extremely robust binoculars with magnesium housing, sealed and filled with nitrogen Two EXPLORE SCIENTIFIC 20mm eyepieces of the 62 degree LER series already included 33x magnification and an apparent field of view of 62 degrees, true visible field of 1,8 degreesLarge interpupillary distance of 15mm to the eyepiece lens for comfortable viewing Eyepieces interchangeable and with standardized plug-in diameter of 1.25 inch / 31.7mm The magnification can be adjusted with optional eyepieces from 25x to 75x Precise brass eyepiece compression ring clamps for tilt-free fitColor and nebula filters can be used for astronomical observations Extendable dew caps prevent fogging of the outer objective lenses and stray light Integrated carrying handle facilitates transport and mounting on the tripod Tripod connection via two 1/4 inch or one 3/8 inch threaded holes (standard photo tripod thread) Tripod recommendation: EXPLORE SCIENTIFIC U-mount with field tripod (Art.No. 0114300) Objective type: Air spaced achromatic lens (2 elements/ 1 group) Coating: full multilayer coating on all optical surfaces Aperture, focal length and aperture ratio: 120mm / 660mm / F=5.5 Sealed to IPX6 standard and nitrogen filled: yes / yes Close focus distance: 35 meters Eyepiece mount diameter: 1.25'' / 31.7mm Adjustable interpupillary distance: 54 to 76 mm Helical single focus: yes BAK-4 prism system for a bright and high-contrast imageDimensions and weight of binocular: 654 x 290 x 156mm, 8.3kg Housing colour of binocular:  white What's included Giant binocular with carrying handle (without tripod)Eyepieces ES 20mm 62 degrees LER Series (2pcs)Precisely fitting foam insert for transport Dust covers for objectives and eyepiece sockets Instruction manual

Explore hidden worlds through your own eyes – with the BRESSER Pollux-I telescope starter set for budding amateur astronomers, you can go on your own journey of discovery in outer space. Everything you need is already included: the astronomical reflector telescope with 150 mm aperture and 750 mm focal length, the equatorial mount, the tripod and a wide range of accessories for astronomical observations. Perfect for getting started quickly: the system is very easy to use. In addition, the entry-level telescope impresses with its versatility: you can observe the Moon and planets as well as star clusters, gas nebulae and even galaxies through the high-quality optics. Due to the parabolic primary mirror the image delights with impressive sharpness and high contrast. In addition, the 2-inch focuser allows for the use of high-quality eyepieces. Perfect conditions for fascinating sights of the night sky! Time-proven optics for your first astro-steps – the telescope By choosing the Pollux-I, you’ll start your journey to the stars with a classic Newtonian reflector telescope. Beginners are often surprised by the fact that with telescopes of this type you don't look in at the back of the tube, but at the front and laterally. This gives you the advantage of always being able to look into the telescope in a comfortable posture, even when it's pointed vertically upwards at the sky. In addition, these reflector telescopes offer optics that are absolutely free of chromatic aberrations and thus provide good imaging properties. The large aperture of 150 mm collects a lot of light from the celestial objects. In addition, 150 mm aperture and 750 mm focal length result in a short focal ratio (ratio of aperture to focal length) of 1 to 5 (F/5). On the one hand, this makes the telescope fast and provide a bright image. On the other hand, high magnifications can be achieved. This combination makes the entry-level telescope so versatile. In addition, the Pollux-I is equipped with a parabolic primary mirror. The remarkable effect of this special mirror shape: you enjoy excellent imaging properties at all magnification levels. So you can look forward to the complete range of celestial highlights. At low to medium magnification, you can admire deep-sky objects such as open star clusters, globular clusters, gas nebulae and even galaxies such as the pair of galaxies M65 and M66 in the constellation Leo. And at high magnifications, observing the planets or details on the Moon is an absolute pleasure. You can get really close to your favourite objects: The aperture of 150 mm achieves a resolving power that allows magnifications of up to about 300x with sharp images. Technically, even higher magnifications are possible, theoretically up to 562.5x using the included accessories. However, with increasing magnification, the sharpness of the image can slowly decrease. In addition, the prevailing conditions always make a difference: How highly you can magnify always depends not only on the power of the telescope but also on the air turbulence in the atmosphere (seeing conditions). The telescope also impresses with its flexibility in terms of eyepiece compatibility: it comes with a 2-inch focuser (focuser extension) and an adapter from 2 inch to 1.25 inch. This enables you to use eyepieces with 1.25-inch sockets (about 31.7 mm) as well as eyepieces with the larger 2-inch sockets (about 50.8 mm) with large fields of view. Note for nature lovers: If you choose a Newtonian telescope like the Pollux-I reflector telescope, you can look forward to a specialist in astronomical observation. However, the image is always displayed laterally reversed as well as upside down, which makes no difference when observing the sky. However, this type of telescope is less suitable for nature and landscape observation during the day. Would you like to use your new telescope for exciting nature discoveries as well? Then we recommend that you choose one of the BRESSER refractor telescopes. Perfect foundation for fascinating discoveries – mount and tripod Your beginner's telescope is securely held by the height-adjustable aluminium tripod with equatorial mount. The special feature of this mount, also known as a parallactic mount: in contrast to azimuthal models, the movement of the celestial bodies is only compensated for on one axis instead of two. For this purpose, you simply align one axis parallel to the Earth's axis by pointing it approximately at Polaris. For precise and comfortable alignment and tracking of the entry-level telescope, the Pollux-I comes equipped with two flexible shafts with fine adjustment. And to ensure that the interchangeable eyepieces, barlow lens etc. always remain within reach, they can be stored on the tray between the tripod legs.Keep track of things automatically: For this telescope’s equatorial EQ-3 mount, the tracking motor with item number 4951400 is available as an optional accessory. This eliminates the need to manually track a celestial object set in the telescope. When this motor is installed at the mount, it automatically tracks the celestial object, keeping it in the field of view of the eyepiece. This makes observing the night sky even more comfortable! Well equipped for the ideal start – the accessories Your entry-level telescope comes with a wide range of astronomy accessories so that you can start to be amazed right away. For example, the LED viewfinder helps you align the telescope and find celestial objects. Installed in parallel on the telescope, this direction finder shows you a red dot when you look through it. It appears to hover in front of the sky and thereby shows you where the telescope is pointing. Varying view of the sky: With the two eyepieces with 1.25-inch sockets (31.7 mm), you can admire your astronomical discoveries at different magnifications. The 3x barlow lens already included in the set triples the magnification of the eyepiece you are using. Enjoy safe observations of our Sun with the included solar filter. This way you can easily take a closer look at sunspots and granulation on our own star. CAUTION: Never point the telescope at the Sun without the solar filter! Astrophotography for beginners: with the smartphone adapter, you can use your mobile phone as a camera on the telescope. This way you will quickly impress friends and relatives with your own first snapshots e. g. of the Moon or the Sun. FEATURES Reflector telescope with 150 mm aperture and 750 mm focal length Reflector type Newton with parabolic primary mirror Very well suited for observing the Sun, Moon and planets as well as star clusters, gas nebulae and galaxies Height-adjustable tripod with equatorial EQ3 mount Precise movement through flexible shafts and fine adjustment in both axes Easy to use, very good for beginners Focal ratio F/5, thus very suitable for many celestial objects 2-inch (50.8 mm) focuser with adapter to 1.25-inch (31.7 mm) Two eyepieces and one barlow lens with 1.25-inch (31.7 mm) sockets for different magnifications Safe solar observation with the included solar filter First steps in astrophotography with smartphone camera adapter SCOPE OF DELIVERY Telescope Aluminium tripod Equatorial EQ3 mount Adapter from 2 inch to 1.25 inch Eyepieces: 4 mm and 20 mm (1.25-inch sockets) Barlow lens 3x (1.25-inch socket) LED illuminated dot finder Solar filter Smartphone camera adapter Accessory tray Astronomy software as download Instruction manual

With the BRESSER Solar Eclipse Glasses, you can experience one of nature's most captivating events safely and effortlessly. Whether it's an annular, total, or partial eclipse, the sight of the moon crossing in front of the sun is always breathtaking. Designed to protect your eyes, these specialist glasses are crafted in the USA to meet the highest safety standards. BRESSER Eclipse Glasses: Your safe window to the sun The glasses feature premium-quality white light filter film that effectively blocks harmful UV and IR rays. This ensures a bright and natural yellow image of the sun. Thanks to their sturdy construction, these glasses are built for repeated use. You can even use them to spot large sunspots or enjoy the rare sight of planes flying in front of the sun. Be prepared for the next eclipse and enjoy safe solar viewing with the BRESSER Solar Eclipse Glasses. FEATURES Specialist glasses for safe solar eclipse viewing Provides a natural, bright yellow image of the sun Ideal for safe visual solar observation Durable and resistant to damage Ready to use immediately Complies with EN ISO 12312-2:2015 standards, verified by independent testing at ICS INC. Laboratories SCOPE OF DELIVERY 10x Solar Eclipse Glasses