BRESSER Messier NT-203s/800 EXOS-2/EQ5

Taking off to the stars from your own balcony – with this complete astronomy set that is easily done. The compact Maksutov-Cassegrain telescope with 90 mm aperture and 1250 mm focal length fits everywhere. And thanks to the high contrast, you will be amazed by fascinating insights into outer space even while standing in the brightly lit city. Especially the Sun, Moon and planets look great through the high-quality optics of the beginner's telescope. The set includes everything you need for successful sky observation: an astronomical Maksutov-Cassegrain telescope with 90 mm aperture and 1250 mm focal length, an equatorial EQ-3 mount, a tripod and extensive accessories. The system impresses with its simple operation, which makes life easier for astronomy beginners in particular. Thanks to its compact dimensions, the powerful telescope is also ideal as a travel telescope for more experienced stargazers. A great combination – the telescope The decisive advantage of the Maksutov-Cassegrain construction: the powerful optics have a long focal length, but can still be easily transported due to their very compact design. The recipe for success is the combined optics of mirrors and lenses with very good imaging properties. The 90 mm aperture admits a lot of light into the beginner's telescope and thus ensures a good resolution. In addition, 90 mm aperture and 1250 mm focal length result in an extremely large focal ratio (ratio of aperture to focal length) of 1 to 13.9 (F/13.9). The impressive result: a very sharp image with excellent contrast. Moon, Sun and planets – especially the celestial bodies in our immediate vicinity are more than worth a look through the BRESSER Messier MC-90/1250 Maksutov-Cassegrain telescope for beginners. But various deep-sky objects are also a sight to behold: go on a discovery tour through space and marvel at open star clusters, globular clusters and so-called planetary nebulae such as the fascinating Dumbbell Nebula M27. Thanks to the resolution of the 90 mm aperture, you can enjoy really sharp images at magnifications of up to about 180x. The technology allows more, but you have to reckon with blurriness at higher magnifications. In addition to your telescope, the air turbulence in the atmosphere (seeing conditions) also determines how much you can actually magnify. Your astronomy start is on a firm footing – mount and tripod The beginner's telescope comes with a height-adjustable aluminium tripod and an equatorial EQ-3 mount – the perfect basis for your exploration of the universe. The special feature of the equatorial mount: you only need to compensate for the movement of the celestial bodies on one axis instead of two. You simply align this axis parallel to the Earth's axis by pointing it approximately at the polar star – a procedure also known as "alignment". For sensitive and comfortable adjustment and tracking, the mount is also equipped with two flexible shafts with fine adjustment. Always ready to hand for every celestial highlight – to this end, your accessories will find their place on the storage plate 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! Everything for stunning stargazing – the accessories With the complete astronomy set, your observations will be under a lucky star. The LED viewfinder, which is easily mounted parallel to the telescope, allows you to keep an overview of the night sky. For this purpose, a red dot is projected onto a small ground-glass screen inside the viewfinder. This dot appears to be floating in front of the sky when you look through the viewfinder. And it does so exactly where the aperture of the telescope is pointing. Thus, precise alignment and finding celestial objects becomes super simple! The 26 mm Plössl eyepiece shows greatness in every respect: With it, you can enjoy 48x magnification with very good imaging properties on this telescope. Would you like to look even closer? Then extend your set with additional eyepieces. Because the socket diameter of 31.7 mm (1.25 inch) corresponds to an international and manufacturer-independent standard, you have a wide choice. A comfortable view into the beginner's telescope at all times – this is ensured by the built-in 90-degree star diagonal mirror. So you can look in from the side with ease, even if your telescope is pointing vertically upwards into the sky. It's not just the night sky that fascinates astronomers with beautiful views. Set out with the solar filter to explore our nearest star. Sunspots and granulation on the Sun are guaranteed to amaze you. ATTENTION: Never point the telescope at the Sun without the solar filter! What could be better than reliving unforgettable moments? With the smartphone adapter, the beginner's telescope becomes a giant lens for your mobile phone in no time. So you can easily capture and share your favourite moments with the Moon, Sun etc. FEATURES Entry-level Maksutov-Cassegrain telescope with 90 mm aperture and 1250 mm focal length Very good for observing the Sun, Moon and planets Very compact dimensions, thus well suited for the balcony or as a travel telescope Height-adjustable tripod with equatorial EQ3 mount Precise adjustment through flexible shafts and fine adjustment in both axes Easy to use, good for beginners Focal ratio F/13.9, thus very sharp image and excellent contrast 26 mm eyepiece of the "Plössl" type with 31.7 mm (1.25 inch) socket for 48x magnification Safe solar observation with the included solar filter Entry into astrophotography with smartphone camera adapter SCOPE OF DELIVERY Telescope Aluminium tripod Equatorial EQ3 mount Eyepiece: 26 mm Plössl (1.25 inch socket) Built-in star diagonal mirror LED illuminated dot finder Solar filter Smartphone camera adapter Accessory tray Astronomy software download Instruction manual

Ultra Light Dobsonian 305mm GENERATION II - with completely redesigned and improved construction.No telescope type has influenced amateur astronomy as radically as the dobsonian telescope. Before the introduction of this telescope type by John Dobson the vast majority of amateur telescopes were small inadequate refractors on shaky mounts - just good enough to show the polar regions on mars or the rings of Saturn. Bigger telescopes, like the Schmidt-Cassegrain telescopes, were restricted to the relatively small group of amateurs that could afford them.The brilliant combination of simple - but effective - mechanics and the largest aperture available led to a worldwide triumph of this concept. No other telescope type offers you so much light for your money as a good dobson. We have taken the motto "held together by gravity and driven by yoghurt power" and offer a modern version of the classic - designed by amateur astronomers for amateur astronomers. Despite its large aperture the telescope can be transported easily even in small cars and is assembled within minutes without tools. The construction was optimized for maximum rigidity with a minimum of mass. The combination of big altitude wheels and a optimized aluminium-sandwich construction allows for small movements even at high magnifications. The focus position is already positioned to accept our coma-corrector. The ideal workhorse for the deep-sky enthusiast. A telescope with 305mm aperture gathers more than 1800-times more light than the naked eye. Details on planetary surfaces stand out even to unexperienced observers, and countless deep-sky objects show details. Bright globular clusters are resolved down to the core and the view of the lunar terminator will provide a unforgettable experience.Dimensions for mobile use: Rockerbox 450mmx450mmx320mm; Mirrorbox 380mmx380mmx300mm; Trusses approx. 980mmEyepiece Height while pointing at zenith approximately 1,4m.12“ Net total weight: 32,1 kg; 12“ Mirror Box: 18,9 kg; 12“ Secondary cage +Rockerbox: 10 kg; 12“ 4 Pairs of trusses: 1,8kg; 12“ Altitude Wheels: 1,4kg ; Focuser thread: M54 x 0.75 mm ; Backfocus: 45mm behind the 2" eyepiece holder. 35mm when the 1.25" adapter is mountedSPECIFICATIONS Truss-Dobsonian Telescope in full Aluminium constructionNEW: Slider bearings made from TEFLON und GFK for smooth and precise movementNEW: Improved main mirror cell with completely redesigned mechanicsNEW: Altitude bearings with new designed brake and friction systemNEW: Larger feet to improve stabilityNEW: Universal finder slot to enable an easy finder upgradeNEW: Counter-weight system included - 2 x 1.0 kg NEW: Quick-lock fasteners with new springloaded design for comfortable useNEW: Powder-coated yellow altitude wheels to improve durabilityNEW: Laser engraved central mark on main mirrorSCOPE OF DELIVERYTruss Dobsonian TelescopeLED finder with standard finder slotStray light shield for secondary cageMain mirror collimation toolBattery compartment with bag for fansCounter-weights 2 x 1.0 kgExtension tube for focuserReducer 2"/1.25"Manual

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. It is also suitable for charging large power stations such as the BRESSER Power Station 100 Watt (art. no.3810000) and the BRESSER Power Station 500 Watt (art. no. 3810020) as well as power stations from other manufacturers with suitable connection values.Universal charger with flexible connection options Two black USB A sockets for normal charging and another orange USB A socket with QC3.0 standard for fast charging of newer generations of devices are available for powering your devices. An additional universal connection cable with a hollow DC plug 5.5/2.1 mm in diameter and 2.5 metres long, as well as 3 plug adapters (3.5/1.35 mm, 5.5/2.5 mm, 8.0/5.5/0.8 mm) 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 1: A battery with a capacity of 3000mAh (3.0 Ah) and a charging current via 5 volt USB connection of 3400mA (3.4 amps). So 3000 : 3400 x 75 = 66 minutes. Dividing the result by 60 gives the charging time in hours: 1.1 hours.This means that an average smartphone can be fully charged in just about 1.1 hours with a 90-watt solar panel.   Example 2: A large power station battery with a capacity of 13000mAh (13.0 Ah) and a charging current via 18 volts DC plug connection of 5000mA (5.0 amps). So 13000 : 5000 x 75 = 195 minutes. Dividing the result by 60 gives the charging time in hours: 3.3 hours.This means that an average smartphone can be fully charged in just about 3.3 hours with a 90-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.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. 90 wattsSolar panel for charging battery-powered devicesSuitable for smartphones, tablets, power banks and larger power stations 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 3 x USB A and DC hollow plug with adaptersIncludes one orange USB A jack with QC3.0 for fast chargingMonocrystalline 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: 90 wattsOutput voltage at the DC connection cable: 18 voltsOutput current at the DC connection cable: max. 5.0 ampsUSB A sockets: 2 x black USB and 1 x orange USB QC3.0 (for quick charging)Output voltage at the black USB A sockets: 5 voltsOutput current at the black USB A sockets: max. 3.1 ampsOutput voltage and current at the orange USB A QC3 socket: 5V3.4A/9V2.5A/12V2.0ADC connection cable length: 2.5 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: 520 x 370 x 45 mmDimensions when unfolded: 1280 x 520 x 35 mmWeight: 3.7 kgSCOPE OF DELIVERYSolar panel 90 Watt (1 piece)Carabiner hook (4 pieces)Integrated DC connection cable (1 piece)Plug adapter (3 pieces)User manual