LUNT Solar Eclipse Glasses (5 pieces)

The NATIONAL GEOGRAPHIC Newton telescope with solar filter is a highlight in its own right!The classic reflector telescope comes with everything you need to start directly. The azimuth mount is very easy to handle, which makes this telescope especially recommendable for beginners. The highlight of this device is, however, the sun filter! This  tested sun filter not only allows you to observe the astro but also the sun. A Smartphone holder gives you the opportunity to share your pictures and videos with friends and in social media.PROPERTIESLens diameter: 76 mmFocal range: 350 mmEnlargement: 18x-175xsuitable for sun and sky observationextensive accessory package for immediate startsmartphone holder for photography with mobile phoneeasy to use azimuth mountcomes completely pre-assembled - it can be observed immediately - no construction requiredSCOPE OF SUPPLYtelescopemount and tripod2 eyepieces (4mm/ 20mm)sun filterBarlow lens: 2xastronomy softwaremoon map for downloadsmartphone holder

Self-sufficient travel with the BRESSER solar charger Whether camping, sailing, trekking or swimming at the nearest lake – anyone who enjoys being outdoors for long periods of time does not want to do without their smartphone, tablet, powerbank, etc. But one question quickly arises: where can I find the nearest power socket? After all, every battery runs out and our practical everyday helpers can't manage without electricity. With the ultra-compact BRESSER solar charger, you simply use the power of the sun to charge your devices. The environmentally friendly solar energy is free of charge – and you remain independent of the power grid! Simply open it up, put it down and immediately produce green solar powerThe handling is very simple: unfold the solar panel and align it as perpendicularly as possible to the sun. Then connect the device to be charged to the solar charger, either with a suitable USB cable (not included) or with the included DC connection cable. The charging process begins immediately. Which devices can the solar panel charge? The solar charger gets all devices with a USB power supply connection or the above-mentioned DC power plug connection up and running again in no time – e.g. smartphones, tablets, power banks, portable playstations, MP4 players, GPS devices and Bluetooth headphones. For charging large power stations, we recommend the more powerful BRESSER solar panels with at least 60 watts output power – see art. no. 3810050, 3810060, 3810070.Universal charger with flexible connection optionsOne USB-A connection socket is available for powering your devices. There is also an additional universal connection socket for DC bar plugs with a diameter of 5.5/2.1 mm. A universal connection cable with a 5.5/2.1mm DC bar plug on both sides and a length of 2 metres, as well as 3 plug adapters (3.5/1.35mm, 5.5/2.5mm, 8.0/5.5/0.8mm) are included in the scope of delivery. The polarity of the connectors is as follows: Inner contact = positive (+), outer contact = negative (-). How long does it take to charge a battery?Most modern devices with built-in batteries indicate the current charging status of the battery on a display or status LEDs. The charging process is also automatically terminated by the internal charger of the smartphone or tablet, etc., as soon as the battery is full.Nevertheless, it is helpful to know how long a full charge theoretically takes with an empty battery. This is the only way to choose the right solar panel model for the requirements of the devices you want to charge.Here is a short calculation: Divide the capacity of the battery (mAh) by the charging current of the charger (mA) and multiply this by a factor of 75. This then gives you the approximate charging time in minutes that is required to fully charge the battery at 100% sunshine duration.Example: A battery with a capacity of 3000mAh (3.0 Ah) and a charging current via 5 volt USB connection of 2400mA (2.4 amps). So 3000 : 2400 x 75 = 94 minutes. Dividing the result by 60 gives the charging time in hours: 1.6 hours.This means that an average smartphone can be fully charged in just about 1.6 hours with a 21-watt solar panel. Carabiner hook for attachment included In order to attach the solar panel securely to an object and align it perfectly with the sun, 4 sturdy snap hooks are included in the scope of delivery. Simply connect them to the riveted ring eyelets of the solar panel and use them to hang the solar charger stably, e.g. on a tent loop, a fence or other suitable holding points. If you attach it to your backpack, you can even use the time during a hike for charging. Innovative solar cell technology with high efficiency Monocrystalline silicium cells ensure high efficiency and the fastest possible charging of the device batteries. This means maximum electricity yield per solar surface. As a result, you benefit from relatively high charging currents and short charging times with a compact design.Easy transportThanks to the modern and flat design, you can easily fold the individual segments of the solar panel into a small bag and stow it in your luggage while saving space. Always ready for the next spontaneous use.Robust, dust- and water-repellent materials The durable Cordura fabric is extremely tear-resistant but still flexible. It protects the valuable solar panel from damage and provides the necessary stability during use. The solar panel is dust- and water-repellent, it withstands most weather conditions and is your ideal companion for almost all outdoor activities. Nevertheless, the solar panel should not be exposed to direct rain or extreme humidity.IMPORTANT NOTESThe solar panel does not have an integrated charger or charge controller. Therefore, it is not suitable for directly charging loose battery cells or lead batteries. It is only suitable for smartphones, tablets and power banks, for example, because they always have built-in internal chargers.The solar panel does not have its own battery, but serves exclusively as a power source in sunshine for charging electronic devices.When connecting the devices to be charged via the DC bar plug, always ensure the required voltage and correct polarity. Otherwise, damage may occur to the electronics of the solar panel and the devices to be charged.Do not leave the solar panel outdoors at night with high humidity or in the rain. This could damage the internal electronics. FEATURESSolar panel with output power of max. 21 wattsSolar panel for charging battery-powered devicesSuitable for smartphones, tablets and power banks etc.Simply unfold, point towards the sun and the charging startsStay independent even without a 230-volt socketFree electricity through solar energyNo emissions and zero noiseConnection via USB A and DC hollow plug with adaptersMonocrystalline silicium cells with high efficiencyEnables high charging currents and short charging timesCompact transport dimensions due to foldable designRobust, dust- and water-repellent materials Ideal for all outdoor activitiesSPECIFICATIONSOutput power of the solar panel: 21 wattsOutput voltage at the DC socket: 18 voltsOutput current at the DC socket: max. 1.1 ampsOutput voltage at the USB A socket: 5 voltsOutput current at the USB A socket: max. 2.4 ampsCable length of the DC connection cable: 2.0 metresDC plug adapters: 3.5/1.35mm, 5.5/2.5mm, 8.0/5.5/0.8mmPolarity of DC connectors: inner contact = positive (+), outer contact = negative (-)Transport dimensions when folded: 290 x 195 x 35 mmDimensions when unfolded: 815 x 290 x 20 mmWeight: 1,0 kgSCOPE OF DELIVERYSolar panel 21 Watt (1 piece)Carabiner hook (2 pieces)DC connection cable (1 piece)Plug adapter (3 pieces)User manual

​Spare part for blocking-filters from LUNT SOLAR SYSTEMS, suitable for B400, B500, B600, B1200 and B1800 blocking-filters.The H-alpha telescopes and filter systems from Lunt Solar Systems each include a blocking-filter. The blocking-filters have a blue colored filter part on the side facing the telescope. This blue colored filter parts may become a milky white layer at older blocking-filters if the blocking-filter was storded at high air humidity for some time. Please always store H-alpha telescopes and filters as dry as possible. If this blue colored filter part has become a milky white layer, it can be replaced with this spare part. The replacement is easy and can be done by the user himself. Installation instructions can be found here under the "Manuals" tab as a PDF for download.Please note that this replacement part can only be used on Lunt Solar Systems blocking-filters B400 to B1800. If the problem happens with the large B3400 blocking-filter, the B3400 must be sent to our service department for repair.FEATURESDiameter: 20mmCannot be used separately, only as spare part at blocking-filters from Lunt Solar SystemsFor B400, B500, B600, B1200 and B1800 blocking-filtersIt does not matter if the blocking-filters are installed in 90° zenith-mirrors or straight extension-tubesSCOPE OF DELIVERYSpare part 20mm blue glass for B400 to B1800 blocking-filters

Please note that this astronomy book for beginners is only available in German.

NEW - now including a high-quality aperture Solar-filter for safe observation of sunspots, eclipses and planet transits. The computer-controlled Refractor Telescope BRESSER Automatik 80/400 is a wide-field-lens telescope that goes with you almost anywhere, due to its compact design. The telescope is the ideal choice for beginners and is also perfect for travelling. Take this computerized telescope with you to your favourite observation place, when you're hiking, camping or on vacation. It may be small, but it still includes an easy-to-use go-to system. The BRESSER Automatik 80/400 can be operated on a desk or with the included tripod. The computer control allows for an easy alignment of the telescope with the night sky and can navigate to interesting celestial objects automatically by a push of a button. Over 270,000 well known astronomical objects are still stored in its database of the computer control. You can sit back and only need to focus on one thing: the view of the vast, starry firmament! It will show numerous craters on the moon, the cloud belts on Jupiter or Saturn's rings. These is just the beginning of what can be seen with this telescope. The menu navigation of the Computer Handbox is also multilingual and offers the settings of German, English, French, Spanish and Italian.FEATURESTelescope for night and solar observation20x to 40x magnificationEasy alignment and usage also for beginnersAutomatic navigation to observation objects by a push of a buttonCoordinates of over 270,000 celestial objects pre-installedDetails of the moon and planets visibleAlso suitable for bird watching and terrestial observationSCOPE OF DELIVERYAchromatic refractor (telescope)Alt-azimuthal single-arm mountAluminium tripodAperture Solar-filterComputer control (handbox)2 eyepieces, 31.7mm diam.: f/10mm, f/20mmMoon filterCompass with circular levelStar map and astronomy software (via download)Instruction manual