EXPLORE SCIENTIFIC Sun Catcher Solar Filter for 80-102mm Telescopes

Explore Scientific's Sun Catcher Variable Large Aperture Solar Filters are available in many sizes to work on most telescopes from 60mm up to 10-inch Schmidt-Cassegrain and of course all Bresser and Explore Scientific Telescopes. The Solar Filter material being used is the new advanced 'Solarlite' Film manufactured by world famous Thousand Oaks Optical through years of research and development. 'Solarlite' a new solar film that has the optical quality of glass with the advantages of impregnated polymer. Perfect also for the solar astrophotographer.NOTE: All Explore Scientific Solar Equipment is rated ISO12312-2 supplied by Thousand Oaks Optical and approved for direct observation of the Sun. These solar filters are available in different sizes, the picture above shows three different sizes as an example. This is the solar filter with 60mm filter diameter.SPECIFICATIONSSpecial objective filter for safe solar observationsISO12312-2 ratedField-stop diameter 60mmFits to outer telescope tube diameter from 60 to 160mmQuick individual match with your telescope diameterFast Setup - Easy UseSCOPE OF DELIVERY1x Sun Catcher solar filter

BRESSER Solar Filter M143 for Messier MC/MCX127 Category: Spare Part for Messier Telescope Series Description: The Solar Filter with M143 thread is suitable for Messier MC/MCX127 (Art. 4827190 MC-127, 4701127 MCX-127 Goto). It offers reliable protection for safe solar observations and is easy to mount. Compatible with the BRESSER Messier Telescope series. Please check compatibility using the product number on your optical instrument.

Universal 50mm viewfinder and guide telescope with a focal length of 220mmExcellent 8x50 viewfinder telescope with removable eyepiece unit and crosshairs with adjustable red illumination. The precise helical focuser and the 1.25 inch /31.7mm plug-in connection, as well as the T2 camera connection thread (M42x0.75mm), allow the autoguiding required for long time exposure to obtain a point-shaped star image. It can also be used as a mini travel telescope.High quality 8x50 viewfinder telescope with adjustable crosshair illuminationImage sharpness and viewing characteristics lift this viewfinder well above the level of the usual 8x50 viewfinder scopes. The visible image is bright and crisply sharp. Furthermore, this viewfinder has a very large field of view (FOV) of 6.96 degrees. This makes finding and adjusting objects much easier. The existing scale markings (pitch=1 degree) on the crosshairs are a good reference for estimating distances, and the open centre markings also make it easier to centre objects precisely. All lens surfaces are protected against weathering by multi-coating and guarantee a bright viewfinder image due to the high light transmission values. The adjustable red LED illumination unit is powered by two LR41 coin batteries. The main lens and the crosshairs can be focused independently of each other, giving you perfect focus for your eyes.Compact tracking unit for autoguidingOne of the main applications for this telescope is the so-called autoguiding. Here the usually larger photo-taking optics are actively corrected by a smaller guiding telescope with a second tracking camera. This means that the mechanical fluctuations in the tracking accuracy, which are present in all astronomical telescope mounts, are measured by the tracking camera and compensated accordingly. This is necessary in order to obtain a point-shaped star image on the astrophotos during long time exposures and to avoid unwanted star trails. For this purpose, the guiding telescope is inserted into the existing viewfinder shoe of the photo-taking optics and aligned parallel. If the existing viewfinder shoe is not compatible, a suitable viewfinder shoe is also included. With the 1.25 inch / 31,7mm plug connection at the rear end or via T2 thread connection (M42x0,75mm), a tracking camera can be mounted afterwards. This is held securely by a brass ring clamp and 3 clamping screws. Please note the required back focus for your tracking camera. The focal plane (backfocus) is approx. 22mm behind the T2 thread. The sensitive focusing on the guiding star is done by a large knurled wheel of the mechanically precise manufactured helical focuser. For easy reproduction of the point of focus, this has a white millimetre scale from 0 to 28mm, which is attached by laser engraving. After the tracking camera has been connected directly or via computer to the telescope mount and the necessary basic settings have been made, the first astrophotos with long time exposure can be taken.Use as mini travel telescopeThis viewfinder and guide telescope can also be used quite simply as a mini travel telescope. With the optional eyepieces, a magnification of 8x to 40x can be achieved. Nearly all eyepieces with a focal length of 5 to 26mm and 1.25 inch/31.7mm plug connection are suitable. Especially recommended are the EXPLORE SCIENTIFIC eyepieces of the 52 degree (Art. 02195xx) and 62 degree (02196xx) LER series. Note: Only straight view use is possible.Metal viewfinder holder and viewfinder shoeThe mount of this viewfinder and guide telescope is completely made of aluminium and is a stable base. The viewfinder mount is suitable for many common types of telescopes, such as EXPLORE SCIENTIFIC, BRESSER MESSIER etc. If the existing viewfinder shoe is not compatible, a matching viewfinder shoe is also included. This can be attached to the telescopic tube by means of four M5 screws. The bore distances of the viewfinder shoe are 31.7mm on the longitudinal and transverse axis. The six large adjustment screws with non-slip knurling make it easy to align the viewfinder, even with clammy fingers. All adjusting and clamping screws have plastic tips that effectively prevent the viewfinder housing and viewfinder mount from being scratched.FEATURESExcellent 8x50 viewfinder and guiding telescopeCan also be used as mini travel telescopePerfect image sharpness and good viewing comfortFMC Multi-coated lens surfacesLens focal length: 220mmMax. possible camera weight: 550gRemovable eyepiece/cross hair unitCamera connection via 1.25 inch / 31.7mm plug connection or T2 threadT2 thread: M42 x 0,75mmPrecise helical focuser for focusing the visible imageFocuser travel range: 28mmClose focus distance: 3 mLaser engraved millimetre scale from 0 to 28mm on the focuserFocal plane (backfocus) is approx. 22mm behind the T2 threadSeparate focusing of the crosshair at the eyepieceVery large field of view FOV of 6.96 degreesWith adjustable red cross-hair iillumination Scale markings crosshair with 1.0 degree graduationPower supply of illumination unit: coin battery type LR41 (2pcs)Brass ring clamp and 3 clamping screws on the 1.25 inch plug connectionWith optional eyepieces magnifications from 8x to 40x can be achievedSuitable are almost all eyepieces with 1.25 inch/31,7mm shaftMounting of the viewfinder telescope is completely made of aluminiumViewfinder mount with 6 large adjustment screws with knurled head for easy gripFinder shoe suitable for EXPLORE SCIENTIFIC, BRESSER MESSIER etc.Additionally a suitable viewfinder shoe is includedBore distances of the viewfinder shoe are 31.7mm on the longitudinal and transverse axisAdjusting and clamping screws have plastic tipsSCOPE OF DELIVERY8x50 viewfinder/guiding telescopeEyepiece unit with crosshairCrosshair illumination unit incl. batteriesViewfinder holder with viewfinder shoeInstruction manual

The iEXOS-100 is a complete astronomical computerized Wifi or Wired GOTO Equatorial Tracker with integrated PMC-Eight electronics suitable for attaching Small Telescopes or DSLR Cameras attached to a standard Vixen Style Dovetail Plate. Also a ST-4 compatible autoguider port for active tracking control is included. Use with the free ExploreStars App for Tablets (Windows, Android, iOS), or with the free ASCOM Standards Compliant POTH Client from Explore Scientific (either wired or wireless) to work with virtually any sky software that supports ASCOM. The iEXOS-100 utilizes a proven German equatorial mount design and Explore Scientific’s revolutionary PMC-Eight™ motion control system to flawlessly navigate the night sky and track objects as they journey across it. This combination provides superior observing and imaging performance without a prohibitive price tag. GOTO systems play an important role in the world of amateur astronomy because they ensure users spend less time searching for particular objects and more time observing and imaging. The PMC-Eight with its versatile connections supported with free to download apps for Window, Android, and iOS, or through the free to download ASCOM POTH Client to connect to your favorite ASCOM Compliant Astronomical Software, can allow you to control the telescope from a few feet away or by communicating computer-to-computer with an Internet connection from virtually anywhere in the world. One of the standout features of the iEXOS-100 system is its German equatorial design. When it comes to tracking the stars with a telescope, there is nothing that compares to a German equatorial mount because it will follow objects as they rise in the east and set in the west. For observers, a German equatorial mount makes it easy to keep your celestial target in your eyepiece. For imagers, it helps you avoid common astrophotography pitfalls like field rotation. Before you can track an object, you need to find it, and that objective can be daunting when you’re faced with a vast expanse of inky black sky. The iEXOS-100 puts a powerful GOTO system in your arsenal of astronomical tools that takes the frustration out of navigating the night sky. This integrated version of Explore Scientific’s PMC-Eight™ system transcends the industry standard single processor by utilizing eight CPUs that operate independently of one another to focus on defined functions. This delegation of tasks among the processors results in a system that offers superior responsiveness, efficiency, reliability and astoundingly fast timing intervals for seamless images and accurate tracking. Although it is internally complex, the GOTO system can be easily operated from your own Apple, Android or Windows tablet using the ExploreStars app, which has an intuitive nature that makes it simple and quick to align your telescope, navigate the stars and learn specifics about tens of thousands of celestial objects. This dynamic app is fueled by a database that is routinely updated to ensure it remains a relevant resource. Our commitment to creating a streamlined GOTO mount is obvious in other design choices. The iEXOS-100 has locking clutches that will let you quickly reposition your telescope from one side to the other and an altitude knob for smooth height adjustments. The mount base includes a small polar alignment tunnel that allows users to roughly align their observing setup with Polaris. It also has a simple bubble level that comes in handy when stabilizing your tripod. Other features include a bracket for holding the battery pack, which powers the PMC-Eight system™ through 8 C batteries (not included); two 1 kg counterweights for balancing; and glow-in-the-dark markers on certain points of the mount and tripod so you can stay oriented with your setup at night. The mount is designed to hold up to 5 kg of astronomical equipment.IMPORTANT NOTETo start using ExploreStars app, download the free app and download the celestial data set that contains the astronomical catalogs, reference images, and reference text. Simply by unzipping the ExploreStars folder containing the expanded celestial data set into your Pictures directory, you will expand the native database from a thousand objects to over seventy thousand objects.  SOFTWARE DOWNLOADhttps://explorescientificusa.com/pages/software-and-downloads-for-pmc-eight-systemFEATURESIntegrated Explore Scientific PMC-Eight™ Wifi GOTO systemBeautiful full graphical user interface using our very own ExploreStars OpenGotoWifi controlled by Tablet, Notebook or Desktop PC with 7'' or larger display, and Wifi function (computer device not included)Needed system software of optional computer or tablet: WIN8.1, WIN10+11, iOS, Android 4.4 or higherClassic four-button pattern and virtual joystick for guiding, centering, moving and slewing on the touch screenIntuitive 2 star and 3 star alignment procedure Includes a small polar alignment tunnelStandard Vixen Style Dovetail AdapterMount load capacity up to 5 kgMultiprocessor Micro Controller with 8 CPU´sMicro-Stepper Motors and worm gearsSilent Belt-Drive System Mini-USB port for INDI/ASCOM wired computer connectionST-4 compatible autoguider portINDI and ASCOM Driver available: YES, supports also Pulse-GuidingYOU can write your own code and import it into this softwareGPS-compatible and auto time / date settings are dependent on optional receiver on computer, tablet or phoneGlow-in-the-dark markings on mount and tripodWeight mount-head: 4,0 kg ; weight tripod: 2,5 kgSCOPE OF DELIVERYExplore Scientific iEXOS-100 PMC-8 Wifi Goto MountStainless steel tripod with bubble levelCounter weight 2 x 1,0 kg Battery compartment 12 volts with bracket / (8 x C-Cells not included) Coil-cord for DEC motorGlow-in-the-dark markings on mount and tripodExploreStars Software via download for freeInstruction manualIMPORTANT NOTE: This package doesn´t include any WINDOWS/iOS/Android Computer or Tablet.FAQ / KNOWLEDGE-BASE:  https://explorescientificusa.com/pages/explore-scientific-knowledge-base-and-faqsPMC-Eight GROUPS:  https://espmc-eight.groups.io/g/MAIN

HINWEIS: Es handelt sich bei diesem Artikel um Gebrauchtware bzw. Rückläufer. Das bedeutet: Der Artikel kann leichte Gebrauchsspuren aufweisen und die Verpackung kann von der Originalverpackung abweichen. Bitte beachten Sie, dass für Refurbished Artikel generell 12 Monate Garantie gelten.Du bist ein begeisterter Weltraumfan? Dann hol dir die aufregende Welt der Astronauten in dein Kinderzimmer – mit dem BRESSER JUNIOR Weltraum-Projektor MAXI. 24 Astronomie-Bilder auf drei Dia-Scheiben warten nur darauf, an deiner Decke oder Wand aufzuleuchten und dich ins All zu holen. Du musst dich nur entscheiden, worüber du zuerst staunen willst: aufregende Aufnahmen von der Sonne, dem Mond und den Planeten? Oder interessierst du dich besonders für imposante Space Shuttles und Satelliten? Deine Helden, die Astronauten, sind natürlich auch dabei, und zwar schwerelos im Weltraum oder auf dem Mond. Kinderleichter Start ins All – mit dem Weltraum-Projektor MAXI Die richtige Scheibe ist gefunden? Dann stecke sie in den Projektor, schalte ihn an und das Licht im Zimmer aus. Schon geht es rund: Dreh einfach weiter, um das nächste Motiv zu bewundern. An dem Fokussierrad vorne an der Linse stellst du das Bild scharf. Wichtig: Der optimale Abstand zur Wand oder Decke liegt bei 1,8 bis 2 m. Wenn du dich daran hältst, bekommst du ein schönes, scharfes Bild auf einer großen Projektionsfläche von 61 x 66 cm. Dabei kannst du den Projektionswinkel frei einstellen: Dreh die Kugel einfach so lange, bis das Bild an der perfekten Stelle erscheint. Am Abend ist die natürlich über dem Bett. Denn wie sonst könntest du unter den Ringen des Saturn einschlafen? Lass dich mit dem BRESSER JUNIOR Weltraum-Projektor MAXI von großen Astronomie-Motiven in deinem Kinderzimmer verzaubern. Du kannst von Sonne, Mond, Sternen und Co. gar nicht genug bekommen? Unser Tipp: das zusätzlich erhältliche Buch ''Julius forscht im Weltall – Forschen, Entdecken, Basteln''. Freu dich auf jede Menge Infos, viele spannende Experimente und kreative Bastelideen rund um den Weltraum. EIGENSCHAFTEN Projektor für Kinder mit 24 astronomischen Bildern Optimaler Abstand zur Wand/Decke: etwa 1,8 – 2 m Große Projektionsfläche: etwa 61 x 66 cm bei 2 Meter Abstand Mit Fokussierrad zur Scharfstellung 3 Dia-Scheiben mit je 8 Motiven zu den Themen Astronauten im Weltall, Space Shuttles und Satelliten sowie Sonne, Mond und Planeten Frei einstellbarer Projektionswinkel Stromversorgung: 3x AA-Batterien (nicht enthalten) Für Kinder ab 6 Jahren LIEFERUMFANG Weltraum-Projektor Standfuß 3 Dia-Scheiben mit je 8 Motiven zum Thema Astronomie Bedienungsanleitung

BRESSER 40mm 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: 40 mm Field of view: 46° 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

With the introduction of the 68° Series we are pleased to make two important improvements in eyepiece manufacture, the first being 15 layer Enhanced Multi-layer Deposition (EMD™) coatings on all glass-to-air surfaces to gain maximum contrast, and waterproofing the eyepiece with the use of Argon gas purging instead of standard Nitrogen gas. Although Nitrogen is a fine choice that will last for many years, Argon is a larger molecule that maintains its protective properties over a wider range of temperatures, and is even more resistant to diffusion thereby further extending the protective waterproof environment of the eyepiece body. Through computer-optimized design, a careful selection of optical glasses, and enhanced multi-layer deposition coatings, the Explore Scientific 68° Series™ eyepieces produce long eye-relief and ensure high image-correction, a flat field, and high contrast across the entire image field. An excellent choice for those who make extended visual studies of detail with subtle variations of brightness, and for those who must wear glasses while observing. All 68° Series eyepieces are fully EMD (Enhanced Multi-Layer Deposition) coated and edge-blackened to produce superior contrast.