LUNT Solar Eclipse Glasses (5 pieces)

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

Enter the world of astrophotography now - with the new EXPLORE SCIENTIFIC 4K DEEP SKY ASTRO Camera including ST4 autoguider function. This is truly new: Equipped with the new high-sensitive IMX585 Exmor CMOS colour sensor, this astronomy camera delivers amazing image results with extremely short exposure times even with basic telescope equipment. In addition, this ultra-modern camera can also be used as an autoguider, e.g. to actively track the main imaging device with an SLR or CCD astro camera. An all-round camera that delivers super-sharp and high-resolution planetary images. The high 4K resolution of 3840x2160 pixels guarantees the best possible image result. Sensor The secret to the high light sensitivity is the new back illuminated Exmor CMOS sensor. It increases the quantum efficiency to up to 77 % at 533 nm, which leads to an extremely high light sensitivity and thus particularly bright and high-contrast photos. In addition, the particularly low noise level of this new CMOS sensor generation ensures exceptionally high brilliance and no active cooling is required. Nevertheless, this astro camera has an elaborate internal structure made of aluminium for ideal heat radiation and a fan that can be switched on via software. When used with suitable telescopes, the high native pixel resolution of 3840x2160 enables very nice overview images of the moon, but also detailed planetary images. Solar Imaging This camera is also recommended for solar astro-photography. Especially the Lunt LS40 THa solar telescopes (item No. 0551145/0551146/0551147), with their short focal length, allow in combination with this planetary camera with its large sensor great overview images of the sun. Important Note: When observing and taking photos of the sun, always use a suitable protective solar filter or a special solar telescope. Otherwise there is a risk of immediate blindness and damage to the camera. Software The included Explore Capture professional software offers not only the necessary basic functions for image and video capture, but also many helpful special functions for image post-processing and for setting up the guider. Functions such as live image display, exposure settings, white balance, dark image capture, stacking, timelapse recording and much more can be configured individually. Especially the very sophisticated software makes it really easy for you to get started in astrophotography. With the automatic settings you can produce absolutely presentable results without a lot of prior knowledge. And when you are ready, simply switch off the automatic settings and gradually venture into the individual professional settings. Automatic tracking control Connect the camera directly to the ST4 port of your telescope mount and you have a fully automatic tracking control. Thus, long exposures of several minutes are possible without the stars producing unwanted star traces due to the always existing periodic error of the telescope mount gears. A corresponding ST-4 connection cable is even included in the camera's scope of delivery. Because of the high light sensitivity of the camera, you will always find a suitable guide star even with very short exposure times. Simple automatic tracking at its best. Connection For the connection to telescopes, guiding scopes or off-axis guiders the camera has a 1.25'' socket with 1.25'' filter thread (M28.5x0.6) and a large T2 connection thread (M42x0.75) directly on the housing. IMPORTANT NOTES: This is not a stand-alone guider camera. You always need a Windows 10 or 11 computer to take pictures and for autoguiding. The autoguider software is not included. You can use PHD2 Guiding, GuideDog, Metaguide, Guidemaster (freeware) or AstroArt, MaxIm DL (paid). DOWNLOAD PHD2-Guiding: https://openphdguiding.org/ DOWNLOAD GuideDog: http://barkosoftware.com/GuideDog/index.html DOWNLOAD latest camera software and drivers see download folder "Manuals" or here: https://www.touptek-astro.com/downloads Sample photos made by Lóránd Fényes in Hungary: https://fenyeslorand.hu/naprendszerunk/ https://fenyeslorand.hu/explore_scientific_4k_review/ https://fenyeslorand.hu/asztrofotok/ FEATURESHighly light-sensitive USB 3.0 4K colour camera Suitable for taking pictures of deep sky objects, the Moon and planets Integrated ST4 guiding function Allows very short exposure times for super-sharp planetary images Camera type: EXPLORE SCIENTIFIC G3CMOS08300KPA colour Image sensor: NEW IMX585 Exmor CMOS colour sensor, back illuminated Data output: still images and video Image and video format output: 3840 x 2160 (4K) & 1920 x 1080 (Full HD) pixels Framerate: up to 43 and 66 FPS (for video) Physical sensor size in pixels: 3840 x 2160 (4K) Possible exposure times: 0.1 ms to 60 min Binning: Yes, 1x1 and 2x2 Megapixel: 8.3 MP Sensor size: 11.14 x 6.26 mm Image diagonal: 12.86 mm Pixel size: 2.9 µm x 2.9 µm Bit depth: 8/12 bits, switchable ST-4 compatible autoguider: Yes CNC machined aluminium housing Camera connection diameter: 1.25'' ( 31.7 mm) Camera connection thread: T2 thread (M42x0.75 mm) and 1.25'' filter thread Camera connection to PC: USB 3.0 Required backfocus: 17.5 mm Shutter type: Global shutter Heat radiation via built-in fan (switchable via software) Operating temperature: -10 to +50 °C (30-80 % RLH) Cable length USB 3.0: 150 cm Camera diameter: 68 mm; length: 85 mm Camera weight: 0.3 kg Software: Explore Capture included Camera driver and ASCOM driver and SDK included PC requirements: CPU Intel Core2 2.8Ghz or higher / 2 GB Ram / USB 3.0 Operating system: WINDOWS 10 + 11 Field of view for different focal lengths in minutes of arc: 400 mm - 95.6' x 53.8' 500 mm - 76.5' x 43.0' 600 mm - 63.7' x 35.8' 700 mm - 54.6' x 30.7' 800 mm - 47.8' x 26.9' 900 mm - 42.5' x 23.9' 1,000 mm - 38.2' x 21.5' 1,250 mm - 30.6' x 17.2' 1,500 mm - 25.5' x 14.3' 1,750 mm - 21.8' x 12.3' 2,000 mm - 19.1' x 10.8' SCOPE OF DELIVERY4K Planetary Astro Camera & Guider 8.3 MP 1.25 inch (31.7 mm) plug-in adapter with filter thread USB 3.0 connection cable 150 cm Control cable for ST-4 autoguider function 150 cm Dust cap for camera opening Software (via download) Instruction manual (via download)

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

The BRESSER BR-LP20 cleaning kit is designed for thoroughly cleaning equipment and lenses. This set contains four handy cleaning tools: Rubber blowerWith this, you can blow dust and small particles off the lens or camera without touching it. This prevents scratches or damage that can occur from direct contact. BrushA soft brush for removing more stubborn dirt that is not easily blown away. It is designed to be soft enough to avoid causing scratches. Cleaning fluidSpecial fluid for cleaning the lens without leaving streaks or residue. Although the fluid is not harmful, it is advised to avoid inhalation and contact with eyes and skin. Microfiber clothA soft cloth used in combination with the cleaning fluid to wipe the lens or camera clean. Microfiber is ideal for absorbing grease and fingerprints without scratching the surface. This set is an essential toolkit for photography enthusiasts who want to keep their equipment in top condition. Using the right cleaning tools like these helps to extend the lifespan of your equipment. SCOPE OF DELIVERY 1x Rubber blower 1x Brush 1x Bottle of cleaning fluid 1x Lint-free cloth

BRESSER 10mm Plössl Eyepiece 1,25" (31,7mm) Since years a well known and approved Plössl eyepiece. Ideal to improve the performance of your telescopes for a low budget price. All the BRESSER Plössl eyepieces provide sharp and high-contrast images because of the 4-lens design. All lenses have fully-multicoated surfaces which prevents reflections efficiently. Every eyepiece is equipped with a foldable rubber eyecup to avoid straylight from the sides and the inner eyepiece shaft is carefully blackened as well. Housing and eyepiece shaft are completely made from metal - no plastic is used. Filter thread for use with colour- and nebular filters is also available. All these Plössl eyepieces offer a much better image quality than all the very simple made Kellner and Huygens eyepieces. FEATURES Focal length: 10 mm Field of view: 50° Lens-Design: 4 lenses in 2 groups , fully-multicoated Housing material: completely made from metal Rubber eyecup: YES, foldable Filter thread: YES Storage: Twist-pack SCOPE OF DELIVERY BRESSER Plössl eyepiece with rubber eyecup Twist-pack

Filter Set 2 is recommended for Moon & Planets from 100mm (4") Aperture Set 2 includes the following filters: Explore Scientific Filter 1.25" Green No.56 - 0310262 The green filter is to increase the contrasts enormously between the red and the blue regions of the cloud structures on the gas planets Jupiter and Saturn. Seeing our Earth Moon through the green filter, the contrasts of each ray crater become clearly more visible. Explore Scientific Filter 1.25" Orange No.21 - 0310273 This one really supports the detection of the dark areas on the planet Mars. The details of the clouds of Saturn and Jupiter are also so much more visible through the Filter. Explore Scientific Filter 1.25" Yellow No.12 - 0310267 Watching the Moon surface through the filter, the contrasts will enormously increase. Same with planet Mars. On the huge planet Jupiter, when using the filter, you can even see the contrasts between the cloud-bands and a lot more details. Starting with a telescope diameter of 8“ and a clear sight, you even get to see various details of Saturn. Explore Scientific Filter 1.25" Blue No.80A - 0310264 The color of light blue really supports watching the high clouds on Mars. The contrast increases. The dark red structures will be shown even darker, so this is the perfect filter for watching the big red Flecks on the gas planet Jupiter. The rings of Saturn will be accentuated, the structures of the Venus Atmosphere will be even finer. What ist a color Filter for and do we really need it? Color Filters darken the light slightly, that reaches the eye or the sensor of the camera. This eliminates for instance stronger transitions. The result is that your picture turns out with more contrast which automatically shows more details. FEATURES Made from high-quality optical glass Filter glass is absolutely parallel All optical surfaces have anti reflex coatings Filter housing from black anodized aluminum Filter threads on both ends (female/male) Multiple filters usage is possible SCOPE OF DELIVERY 4pcs color filter protection-case