Explore Scientific 92° LER Eyepiece 12mm

These eyepieces with their huge apparent field of view not only gave the observer a panoramic visual experience, but they relax the eye so the observer could pay attention to subtle details for extended periods. These ultra-wide angle eyepieces played a critical role in the military for aiming at targets, and their long eye-relief counterparts helped reduce eye injury from recoil.Each 100° Series Argon-Purged Waterproof eyepiece is internally sealed and purged with inert, dry argon gas to prevent internal fogging, to halt the intrusion of fine particulates and fungus. This also maximizes the life of the internal coatings.To make sure, every 100° eyepiece is tested by submerging them down to 1 meter of water for 30 minutes.All 100° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.

If a observing session is a relaxing and joyful experience is heavily dependend on the choice of eyepieces. People wearing glasses very often have the problem to see the entire field of view when they are using eyepieces with large apparent fields. This problem is now history. The new 92°- LER eyepieces by Explore Scientific do not only offer excellent image sharpness and high resolution and contrast over the enourmous full field of view - you can see that full field without problems even with glasses on. Fatigue due to tense head positioning and strained viewing simply does not happen because of the excellent viewing comfort these eyepieces provide even to observers wearing glasses. Enjoy the unique combination of excellent image sharpness out to the edge of the field even for fast optics, superior contrast and unmatched viewing comfort. Eyepieces with perfect combinations of various modern glass substrates and highest standards in manufacturing, quality control and service are a tradition at Explore Scientific Tradition - the outstanding resolution and sharpness to the very edge equal that of our eyepieces of the 100° line.These eyepieces are the choice for observers wearing glasses - with excellent performance and durability. The rubber inlet and the foldable eyecups make handling and using in the field easy. The patentet EMD"-coating teams up together with internal baffles to produce high contrast images and to prevent reflexes and ghosting.The argon purging effectively prevents internal fogging, and you don´t have to deal with dirt, fungus or cleansing fluids getting between the lenses.The eyepieces are sealed - this makes sure you will be able to enjoy these eyepieces for many years to come.

The "Wow-effect" eyepiece: You see deep sky objects as if you were in space! It makes you forget that you are looking through a telescope. This makes up for an unforgettable observing experience, that even exceeds the expectations of demanding amateur astronomers. Of course it has the same specifications as the already well established 100° eyepieces: inert gas purged, and waterprrof, the high end EMD coatings are protected from the outdoors.  Dust, fungus, humidity and cleaning solutions cannot harm the precious eyepiece for years of observing to come!

Ultra Light Dobsonian 254mm 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 254mm aperture gathers more than 1300-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 395mmx395mmx310mm; Mirrorbox 330mmx330mmx295mm; Trusses approx.700mmEyepiece Height while pointing at zenith approximately 1,15m; 10“ Net total weight: 26,4 kg; 10“ Mirror Box: 14 kg; 10“ Secondary cage +Rockerbox: 9,7kg; 10“ 4 Pairs of trusses: 1,5kg; 10“ Altitude Wheels: 1,2kg ; 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: Universal finder slot to enable an easy finder upgradeNEW: 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 fansExtension tube for focuserReducer 2"/1.25"Manual

One of the most important obstacles for the exploration of the night sky is the brightening of the night sky by artificial lights, such as streetlights. The night sky is not really dark in the vicinity of towns or cities, which reduces the visibility of objects bejond the solar systems enourmously. Depending on the type of the celestial object it is possible to increase the contrast dramatically by blocking the annoying artifical light. The Explore Scientific H-beta filter uses a characteristic property of the so called emmission nebulae. Those objekcts glow in special colors, the so called emmission lines. Those emmission lines are linked to chemical elements - in this case hydrogen. The Explore Scientific H-beta nebula filter blocks all other colors (and thereby nearly all of the artificial light) and only the emmission line of the hydrogen can pass the filter. The result is astonoishing: suddenly nebulae are visible at locations that were completely empty without filters. In suburbian skies for example the horsehead nebula is almost not visible with a 300mm telescope. By using this filter you can see the nebula and its structures without problems. A must for every visual observer. The Explore Scientific nebula filters come with a individual test certificate - your guarantee to receive a premium filter.

Our set of efficient solar panel and powerful power station provides you with sustainable energy whenever and wherever you need it. Whether you're camping, in the garden, or keeping it as a backup at home – with this powerful combo, you are always well-equipped to easily harvest and store green energy.Power station details Portable power storage (mobile power bank) in maxi format by BRESSER The energy you need in every situation: that's what the mobile Power Station 500 Watt by BRESSER offers you. Whether for tough outdoor use, van life, in the garden or the event of a power failure at home - with the various connection options, you can operate and charge almost all common electronic devices via the powerful and recharcheable 520Wh lithium-ion battery. Perfect for notebooks, musical instrument, etc.: The high-quality 230 volt 500 watt output with a pure sinus wave also supplies sensitive devices with power. In addition, this mobile power station is a silent and environmentally friendly alternative to power generators with combustion engines. In combination with the included solar panel, the built-in solar charge controller allows you to easily use the sunshine to directly charge your Power Station. The built-in Anderson input for direct charging via solar panel makes this particularly easy. Connection options Charge up to 4 x USB mobile devices such as smartphones, MP-3 players, mobile game paddles, cameras, drones, etc. at the same time. The device offers 1 x USB-A and 1 x USB-C fast charging output with Qualcomm Quick Charge 3.0 support. You can also power up to 5 x 12 volt devices with a total of 10 amps of current draw. Use 1 direct car cigarette lighter connector socket and 4 x DC 2.1/5.5mm connector sockets. With the 2 included adapters from 5.5/2.1mm hollow plug to cigarette lighter socket, you can connect car/camping devices such as refrigerators, water pumps, mini compressors, air pumps etc. directly and in parallel. In addition, 2 sockets with 230 volts and a total of 500 watts continuous power are available on the unit. Ideal for connecting chargers for notebooks/tablets/smartphones, mobile coolers and refrigerators, musical instruments, etc. or other electrical devices in this power class. The heart of the Power Station: the built-in battery The powerful 520Wh 43Ah/12Volt (140400mA/3.7V) lithium-ion battery reliably stores your energy reserve. It is charged within 8 hours with the included 230V charger or 12V car battery charging cable. Thanks to the built-in solar charge controller, you can also charge the Power Station directly using the included solar panel. A clear display shows you all relevant information such as the battery charge status, battery charging process, USB output ON/OFF and AC/DC output ON/OFF. Possible operating time with typical applicationsHow long does the Power Station charge or operate your devices? You can easily calculate the approximate operating time yourself: runtime (approx.) = Power Station 520 watt-hour battery x 0.85 / devices input power in watts.For example a notebook with 45 Watt input power: 520 Wh x 0.85 / 45 Watt = runtime in hours; 520 x 0.85 / 45 = 10 hours runtime.LED lamp with 5 Watt: approx. 88 hoursLED lamp with 10 Watt: approx. 44 hoursCamping cooler with 30 Watt: approx. 14 hoursNotebook with 45 Watt: approx. 10 hoursTV with 60 Watt: approx. 7 hoursSmartphone: 50 x chargingTablet computer: 30 x chargingDigital camera: 50 x chargingNotebook: 5 x charging Extensive electronic protection of all current inputs and outputs: The Power Station is protected against short circuit, overvoltage, over- and deep discharge of the battery and against overheating. Please note that for use with our astronomy mounts, such as the EXOS-2 Goto, the adapter cable 4930100 is additionally required. Solar charger detailsSimply 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?Apart from the included 500 W power station, 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. Universal charger with flexible connection optionsTwo 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 10 plug adapters (7.9/5.5mm, 7.4/5.0mm, 6.5/4.3mm, 6.3/3.0mm, 5.5/2.5mm, 5.5/1.7mm, 5.5/3.2mm, 4.8/1.7mm, 4.0/1.7mm, 3.5/1.35mm) 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 60-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 3300mA (3.3 amps). So 13000 : 3300 x 75 = 295 minutes. Dividing the result by 60 gives the charging time in hours: 4.9 hours.This means that an average smartphone can be fully charged in just about 5 hours with a 60-watt solar panel.   Carabiner hook for attachment includedIn 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. FEATURES POWER STATIONPortable energy storage (Power Bank / Power Station)Self-sufficient power supply for outdoor, hobby and professional useCharging and operation of various electrical appliancesOperate or charge up to 11 devices at the same timePure sinus wave for both 230 volt outputsAlso suitable for sensitive devices such as notebooks or musical instrumentsMany connection options and adapters includedEnvironmentally friendly and silent alternative to power generatorsIntegrated solar charge controller for direct charging via solar panelComfortable carrying handle with non-slip rubber coatingPowerful 520Wh 43Ah/12 Volt (140400mA/3.7V) lithium ion battery3 x USB A with each 5-9 Volt 2.1 Ampere) and 1 x USB quick charge output with Qualcomm Quick Charge 3.0 support1 x USB C with 5-12 volts 3.0 amps (for smartphones and tablets of the latest generation)4 x 12 Volt DC out 5.5/2.1mm hollow plug (max. total load 10 Amps, short time 12 A)2 x 230 Volt AC out (500 Watt continuous power, short time 1000 Watt)Indication of battery charge status and USB/DC/AC output on/off staus on displayInput charging socket: 13-22 Volt / 6 Ampere (via power supply or solar panel)Built-in Anderson input for direct charging via solar panelCharging time 0-100% approx. 8 hoursTemperature range: from -10 to +40 degrees CelsiusLifetime/charging cycles: >500 timesFEATURES SOLAR PANELSolar panel with output power of max. 60 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 activitiesSPECIFICATIONS SOLAR PANELOutput power of the solar panel: 60 wattsOutput voltage at the DC connection cable: 18 voltsOutput current at the DC connection cable: max. 3.3 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: 7.9/5.5mm, 7.4/5.0mm, 6.5/4.3mm, 6.3/3.0mm, 5.5/2.5mm, 5.5/1.7mm, 5.5/3.2mm, 4.8/1.7mm, 4.0/1.7mm, 3.5/1.35mmPolarity of DC connectors: inner contact = positive (+), outer contact = negative (-)Transport dimensions when folded: 415 x 370 x 45 mmDimensions when unfolded: 1275 x 415 x 25 mmWeight: 2.55 kgSCOPE OF DELIVERYPower Station with batteryCharger 230 Volt 6 amps230 Volt power cord for Europe (1 pc.)230 Volt power cord for UK (1 pc.)Car charger 12 VoltAdapter 5.5/2.1mm to cigarette lighter socket (2 pcs.)UK socket adapter for 230V output (2 pcs.)Solar panel 60 Watt (1 piece)Carabiner hook (4 pieces)Integrated DC connection cable (1 piece)Plug adapter (10 pieces)User manual