BRESSER StarTracker GoTo Set (Refurbished)

This set, consisting of an excellent 102-mm ED apochromat and the modern iEXOS-100 PMC-Eight GoTo mount, provides first-class sky observations and astrophotography at the highest level. The telescope, with a polystrehl value of 0.97, delivers impressive colour purity, excellent contrast, and razor-sharp images. Additionally, the optical system stands out with its lightweight and compact design and versatile usability. The iEXOS-100 mount, with its Wi-Fi GoTo system and precise PMC-Eight tracking, ensures accurate tracking and easy control via the app. A high-quality 8x50 illuminated finder with upright image and a 62° LER eyepiece with 26 mm focal length and Argon filling are also included in the package. This is the perfect equipment for demanding hobby astronomers and astrophotographers! The Telescope Highly corrected 102mm triplet apochromat (three lenses) with a carbon fibre tube and 2.5'' HEXAFOC precision focuser. Apochromats in the small and medium aperture range are unparalleled: the combination of portability, extremely high image contrast, and sharpness, along with excellent astrophotography capabilities, make these instruments unbeatable. Advances in glass manufacturing have made high-quality apochromats accessible to more buyers. With the new Explore Scientific FCD-100 CF Hex, this development has reached a new peak – the colour purity of this device sets new standards in this price range. The optical design achieves a polystrehl value of 0.97, a mark of excellent correction. This outstanding apochromat is versatile: the fast f/7 focal ratio allows short exposure times in astrophotography, while the high image sharpness and excellent contrast enable both wide-field observations, such as of the North America Nebula or the Andromeda Galaxy, and sharp planetary observations. It is extremely light and compact – the dew shield can be slid in to save space. Modern glass and precise manufacturing make this a top-level observation tool, providing pure enjoyment. This telescope is highly recommended not only for travel but also for quick observations and astrophotography. The high-quality 2.5'' HEXAFOC focuser with 1:10 reduction completes the package – with a large free diameter of 65mm, there is no vignetting, even when using larger camera sensors. The Mount The iEXOS-100 is a high-quality astronomical mount with practical Wi-Fi GoTo functionality and the revolutionary EXPLORE SCIENTIFIC PMC-Eight™ tracking. It makes sky navigation, finding objects, and precise tracking easy. The control is operated via the free ExploreStars app for Windows, Android, and iOS, comfortably through your laptop or tablet. Additionally, the free ASCOM POTH Client from EXPLORE SCIENTIFIC (wired or wireless) is available for download, enabling you to work with virtually any sky software supporting the ASCOM standard. Precise tracking and intuitive control The German equatorial design of the iEXOS-100 allows for precise tracking, enabling observers to keep an object centred in the eyepiece for extended periods. This helps astrophotographers overcome typical long-exposure challenges, such as field rotation and star trails. The unique strength of the PMC-Eight™ system lies in its eight independently operating CPUs, offering excellent responsiveness, efficiency, and extremely accurate tracking to compensate for Earth's rotation. The intuitive user interface of the ExploreStars app makes telescope alignment and night sky navigation easy, providing interesting information about tens of thousands of celestial objects, which are regularly updated. Versatile equipment for easy, universal use Other advantages of the mount include easy-to-use axis clamps, a stepless polar height adjustment, and a polar alignment tunnel for quick alignment with Polaris. A built-in bubble level helps level the tripod. Multiple fluorescent elements on the mount and tripod make it easier to navigate in the dark. The attachment of optics is done via a standard GP dovetail, making the iEXOS-100 a universally applicable mount. TELESCOPE FEATURES Three-element apochromat with two air spaces and a central FCD-100 element Aperture: 102mm Focal length: 714mm Focal ratio: f/7 Tube weight: 3.3 kg, significant weight reduction due to the carbon tube Focus point: 150 mm from the connector MOUNT FEATURES Integrated EXPLORE SCIENTIFIC PMC-Eight™ Wi-Fi GoTo system User-friendly and visually appealing ExploreStars OpenGoto app Wi-Fi control via tablet, laptop, or desktop PC with a minimum 7'' display and Wi-Fi functionality (not included) Compatible operating systems: WIN8.1, WIN10/11, iOS, or Android 4.4 and higher Classic control via directional buttons or virtual joystick for guiding, centring, correcting, and moving via touchscreen Intuitive 2-star and 3-star alignment for GoTo system initialization Polar alignment tunnel for rough polar alignment Standard Vixen-style dovetail for attaching telescope/camera Multiprocessor microcontroller with 8 CPUs Micro-stepper motors and worm gears on both axes Quiet belt drive Mini-USB interface for INDI/ASCOM wired PC connection ST-4-compatible autoguider port INDI and ASCOM drivers available, supports pulse-guiding Ability to create custom firmware and object lists and load them into the PMC-8 GPS compatible / settings dependent on the computer or tablet used Fluorescent elements on the mount and tripod Tripod head weight: 4.0 kg; tripod weight: 2.5 kg Carrying capacity: up to 5 kg total weight SCOPE OF DELIVERY Optical tube 2"-99% star diagonal Two extension sleeves for the focuser Tube rings with dovetail bar and carrying handle Dust caps for the objective and focuser Universal finder shoe 8x50 illuminated finder (upright image) 62° LER eyepiece, 26 mm Argon-filled Explore Scientific iEXOS-100 mount with Open GOTO PMC-8 Stainless steel tripod with built-in bubble level 4x 1.0 kg counterweight Spiral cable for DEC motor 12V battery holder (8 x C batteries not included) Fluorescent elements on the mount and tripod ExploreStars app via free software download User manual

Stargazing at the push of a button!With the BRESSER StarTracker GoTo kit you can upgrade any existing BRESSER EXOS-2 mount.This BRESSER StarTracker GoTo System enables beginners to start astronomical observations in just a few minutes, and guides you to objects that are hard to localize through a standard finder scope. Just push the button and the GoTo System will find planets, nebulae or galaxies for you and position your telescope automatically and precise. The GoTo System database includes over 100,000 astronomical objects and still has space for your additions. The Messier telescope with GoTo System allows you to observe without tedious searching, or image faint objects that are hard to find in a standard finder scope! The BRESSER StarTracker GoTo systems uses servo motors for both axes and features an ST-4 compatible autoguiding input. Guiding aggressivity can be set on the mount itself. The menu navigation of the Startracker Handbox is also multilingual and offers the settings of German, English, French, Spanish and Italian. FEATURESObjects in database: > 100.000Slewing speed: 2°/secAuto-Guider Port: Yes / ST-4 compatible, aggressivity can be adjustedLC Display: 36 x 63mm ; 8 rows with 21 digitsMotors: DC Servo with EncodersOperating voltage: 12V DCSCOPE OF DELIVERY2 Servo motors for both axis (RA and DEC)GoTo computer control StarTrackerStartracker handbox DE/GB/FR/ES/ITBattery pack* with power cableConncetion cable for motorsConnection cable for handboxMounting material (gears, screws, Allen keys)Manual*Batteries not included; 8 pcs. batteries, type D (LR 20) 1.5V required

NOTE: This item is a used or returned product. This means: The item may show slight signs of use; some accessories may be missing; the packaging may differ from the original packaging. Please note that refurbished items generally come with a 12-month warranty.

Time for a treasure hunt! This NATIONAL GEOGRAPHIC kids metal detector is perfect for detecting buried metal objects. From your garden to your local playground, there’s no shortage of places where you can go hunting for interesting objects. Children’s metal detector with intuitive design Thanks to its intuitive design, the metal detector can used immediately after unboxing – simply switch it on and gently swing the search coil approximately 2 cm back and forth above the ground. The metal detector can detect metal objects at a depth of up to 12 cm – when an object is detected, you will hear a beep sound and see a light on the handle. A symbol will also appear on the LCD screen. Also ideal for big puddles and narrow streams – the search coil is waterproof up to 15 cm, allowing you to conduct searches in small bodies of water. Always be respectful: did you know that there are different international regulations in place governing metal detector use? This is to help protect special archaeological discoveries. Make sure that you are familiar with local rules and laws before you start. FEATURES Metal detector for children aged 8 and above Ergonomic handle Adjustable length from 760 to 880 mm Detector plate with adjustable angle Search depth: up to 12 cm Acoustic tone and light to indicate presence of metal LCD screen Battery-operated: 1x 9 V alkaline battery (not included) PACKAGE CONTENTS Metal detector LCD screen Instruction manual

NEW – now including a high-quality aperture Solar-filter for safe observation of sunspots, eclipses and planet transits. Great telescope for night and solar observation.In the past few years the Bresser Newton telescopes have become the standard workhorse for Deep Sky astrophotography. We now proudly present the second generation of this telescope, the Bresser NT-203s/800 with Hexafoc and fast parabolic main mirror. The Bresser NT-203s/800 f3.9 will deliver you deeper images due to its - compared to 8" f/5 systems - oversized primary mirror and therefore faster optical system with the same exposure time. The big 85 mm secondary prevents vignetting for optimal illumination The excellent 2,5" Hexafoc focuser also does not cause vignetting due to its large diameter and makes focussing a joy - the smoothness and shifting-free operation sets new standards in this price class. This groundbreaking focuser, tube rings with 44mm universal standard dovetail and camera mounting feature and a high-end finderscope with haircross and laser-engraved scale  leave nothing to desire even for demanding astrophotographers. The NT-203s/800 Hexafoc has a classical tube construction with an aluminium tube. The focuser can be upgraded with a 10:1 reduction (part No. 0625720) without problems. Also prepared for use with the HR Coma Corrector (part No. 0510330) which eliminates coma, field-curvature and astigmatism.Mount and Tripod. The BRESSER EXOS 2 is a rugged mount with high rigidity and precision tracking for visual observation and astrophotography. The tripod is extremely rigid to suppress vibrations really well. This model is very well machined and has an illuminated polar finder scope and precise graduated circles. A powered twoaxis control (BRESSER Exos Duo) or a GoTo-Kit is available as an optional extra. The BRESSER EXOS 2 can take the weight - depending on length and use of up to 13 kg. This allows you to use refractors of up to 152 mm aperture and mirror telescopes of up to 203 mm aperture.Please note: Reflector telescopes with optical design Newton are very good for astronomical observing at the starry night sky. But these telescopes are not well usable for observing landscape and nature during daylight. Therefore we suggest BRESSER refractor (lens) telescopes for landscape and nature observing.CHARCTERISTICS OPTICS Optical design: reflector telescopeMirror diameter: 203mm / focal length: 800mm / F/3.9Maximum recommended magnification: 406xTelescope for night and solar observing Very high quality Hexafoc focuser with 2.5" free inner diameter Diffraction limited optics with parabolic main mirror 8x50 straight through viewfinder with reticle Optimized finder socket for comfortable use Cradle rings with handle and integrated piggyback camera holder (1/4 thread) Smartphone adapter for celestial navigation included Dovetail plate with stainless steel rail Can be connected to SLR cameras (optional T2 ring required) 50.8mm (2) to 31.7mm (1,25) adapter with integrated T2 thread (T2-adapter ring for your camera is needed) Backfocus fully inward focused: 60mm 85mm secondary mirror for optimal illumination Large knobs for primary and secondary mirror adjustment Tube without accessories: 8.7 kg - Tube with all accessories mounted: 11.5 kgCHARACTERISTICS MOUNT Stable parallactic mount with fine drive in both axes Ball bearings in both axes for more precise movements Stable height adjustable stainless steel tripod ( Min. 69cm / Max. 109.5cm ) Load capacity up to 13 kg payload Retrofittable with the Bresser Star Tracker Goto Kit ( item no. 4951750 ) Circular bubble for easy horizontal alignment Pole height scale for setting the latitude Scaled graduated circular rings to facilitate finding objects using a star atlas or planetarium software Pole finder scope with optional illumination ( item no. 4964212 ) Tripod weight: 4.7 kg Mount weight: 5.6 kg (without counterweight) Total weight incl. counterweight: 19.3 kg Batteries: not includedSCOPE OF DELIVERY Optical tube 26mm Super Plössl eyepiece (31.7mm / 1.25") Integrated 31.7 mm and T2 adapter Prism rail with stainless steel clamping surface Adapter for 50.8 mm (2") eyepieces 8x50 optical viewfinder Rotatable star map Aperture solar filter Tube clamp with handle and camera holder Smartphone adapter for celestial navigation Adjustable polar finder scope with optional illumination Astronomy PC software Stellarium (via download) BRESSER EXOS-2 mount Stainless steel tube field tripod with accessory tray 2 x 4.5 kg counterweight

Modular designed multipurpose telescope, both for observing the sun in the H-alpha wavelength, as well as for night sky observations. Easy conversion between the different applications with a few simple steps. Excellent image quality due to 2-lens ED optics with 70mm aperture for night sky observation, and 60mm usable aperture for H-alpha solar observation.With innovative air pressure tuning system, high-end 2 inch (50.8mm) Feather-Touch focuser, and B1200 blocking filter.Solar observing in H-alpha:The LS60MT/B1200 is a complete telescope for observing the sun in H-alpha light, with 60mm free aperture (no central obstruction) and 420mm focal length. The H-alpha wavelength is the most impressive way to observe the sun, showing protuberances at the sun's edge, filaments and flares on the surface, and much more. An internal Etalon filter achieves a bandwidth of <0.7 Angstrom with the innovative air pressure tuning system Pressure-Tuner. Tuning is done by slightly changing the air pressure in a pressure chamber inside the telescope. This changes the refractive index of the air, making it easy to tune to the H-alpha line. The pressure tuner guarantees a homogeneous image, without central obstruction, and a permanently protected Etalon without erosion. A set of collimating lenses installed in the telescope ensures best performance.Fine adjustment is achieved with a outstanding 2 inch Feather-Touch focuser from Starlight-Instruments with 10:1 reduction.Blocking-filter is the B1200. The B1200 is very good for visual solar observing, and also for solar imaging.The star diagonal in which the blocking filter is installed, is equipped as standard for 1.25 inch eyepieces and with a T2 camera connection.Observing the starry night sky:The H-alpha Etalon system can be removed from the telescope in a few easy steps thanks to its modular design. The 2-lens ED refractor can then be used as a normal telescope with 70mm aperture and 420mm focal length for observation and photography of the night sky. The ED Doublet lens will offer an excellent image. It can be used with a standard 2 inch zenith mirror at the Feather-Touch focuser.With an additional Amici prism, the telescope can of course also be used during the day for nature and landscape observations.This makes the LS60MT, with its small dimensions and low weight, also an ideal travel telescope for all applications!More applications:With additionally available accessories the LS60MT offers even more possibilities!- Double-StackThe LS60MT telescope can optionally be upgraded with the additionally available double-stack filters LS50FHa or LS60FHa (part numbers 0550200 and 0550250). These filters will be simply screwed on the front of the LS60MT, no additional adapters are necessary. Thereby a bandwidth of <0.5 Angstrom is achieved for H-alpha solar observation. Therefore much more details on the solar surface will become visible.- Solar observing in White-LightIf the H-alpha unit has been removed, of course either a sun filter to be installed in front of the objective, or a Herschel-wedge at the focuser can be used to observe the sunspots in White-Light.- Solar observing in Ca-K wavelengthCertainly, the Ca-K filter modules from Lunt Solar Systems can also be used at the LS60MT to observe and photograph super-granulation and other effects visible in this wavelength on the sun.This makes the LS60MT a completely universal usable telescope!FEATURES2-lens ED refractor, FPL-51Aperture: 70mmUsable aperture in H-alpha: 60mm (no central obstruction)Focal length: 420mmBandwidth: internal Etalon with <0.7 AngstromTuning: air pressure tuning system Pressure-TunerBlocking filter: B1200 with 1.25 inch and T2 connectionFocuser: Feather-Touch focuser from Starlight-Instruments with 10:1 reductionTube-ring with 1/4-20 tapped base (standard thread for photo-tripods)Weight with H-alpha unit: 3.8kgWeight without H-alpha unit: 2.6kgLength with H-alpha unit and blocking filter: 40cmLength without H-alpha unit: 31cmSCOPE OF DELIVERYLS60MT Multipurpose TelescopePressure-TunerB1200 blocking filter in star-diagonal housing2 inch Feather-Touch focuserTube ring with 1/4-20 connection for mounting on photo-tripodsTransport case (53x33x17cm)Instruction manual

Giant binoculars for observing the starry sky, nature and landscape. Observe the beauty of the starry sky at night and distant objects in nature during the day. Globular star clusters, glowing gas nebulae, the moon with its craters and even planets can be observed wonderfully on a clear night. But also all other distant things in nature and landscape, even ships and airplanes can be seen in detail. With the all-round binoculars of the EXPLORE SCIENTIFIC BT series, you can get up very close. Thanks to the large, light-gathering lenses and the professional coatings on all lens surfaces, these binoculars produce bright and brilliant images even at night and at twilight, providing a special viewing pleasure. The comfortable 45 degree viewing angle allows fatigue-free use even when the binoculars are tilted strongly.  Large binoculars can also be called a double refractor telescope One complete lens telescope with the full light gathering power is available per eye. Experience a whole new dimension of observing. Objects are reproduced almost vividly in these binoculars and observing with both eyes is basically very relaxed. Last but not least, this comfortable way of observation increases the recognition of the finest details and effectively prevents rapid eye fatigue. Extremely robust binoculars with magnesium housing, sealed and filled with nitrogen  The BT series binoculars are designed for tough outdoor use. The IPX6 sealed and nitrogen-filled design effectively prevents fogging of the internal optics even under difficult weather conditions. The very light magnesium housing saves weight and makes it easy to handle. Two EXPLORE SCIENTIFIC 20mm eyepieces of the 62 degree LER series already included. EXPLORE SCIENTIFIC is an established manufacturer of extremely high-quality eyepieces in the astronomy scene. An optical system is only as good as its weakest component. Therefore we have decided to deliver these giant binoculars with a pair of quality eyepieces of the 62 degree LER series. With an apparent field of view of 62 degrees and a focal length of 20mm, the BT-82 binoculars produce a 24x magnification. Thus these wide angle eyepieces offer a very good overview (field of view 2,6 degree) at moderate magnification. The large interpupillary distance of these LER (long eye relief) eyepieces of 15mm and soft silicone eyecups, which can be turned inside out, also guarantee a comfortable and relaxed view. For astronomy, a flat and sharp image field is advantageous and offers a particularly impressive viewing experience even during the day. Due to the waterproof design and the argon filling, these eyepieces are absolutely durable and easy to clean. Interchangeable eyepieces with 1.25 inch / 31.7mm plug-in diameter Adjust the magnification and field of view to your individual needs and choose from a wide range of available eyepieces. All eyepiece types with a plug-in diameter of 1.25 inch / 31.7mm can be used with the binoculars of the BT series. Especially recommended are EXPLORE SCIENTIFIC eyepieces of the 62 and 82 degree series with focal lengths from 8 to 26mm (see item No. 02188xx and 02196xx). The magnification can be varied from 18x to 60x (focal length binoculars : focal length eyepiece = magnification). The eyepieces are held in the binoculars by a precise brass compression ring clamp and guarantee a tilt free position.  Use of color and nebula filters for astronomical observations Increase the contrast and visibility of objects and details by screwing the corresponding filters directly into the thread of the eyepiece sleeves. The use of color and nebula filters must of course always be done in pairs. Suitable are all EXPLORE SCIENTIFIC screw filters with 1.25inch / 31.7mm diameter (see item No. 03102xx)  Comfortable 45 degree view and helical single focus The 45-degree viewing angle allows a relaxed observation position even when the binoculars are tilted strongly. Also the individual interpupillary distance can be adjusted in a range from 54 to 76mm. With the fine helical individual focusing, precise focusing is achieved effortlessly. Extendable dew caps The integrated dew caps can be removed in high humidity and cold conditions. This avoids fogging of the outer objective lenses and effectively shields additional control light coming in from the side. Integrated carrying handle A metal carrying handle located at the center of gravity facilitates transport and ensures a secure hold during tripod assembly. Suitable tripods and tripod connectionWhen using these large binoculars, a sturdy photo tripod with an appropriate load capacity is highly recommended. The connection is made via two 1/4 inch or one 3/8 inch threaded holes (standard photo tripod thread) in the tripod adapter of the binoculars. The ideal solution is to use the optional availlable EXPLORE SCIENTIFIC U-Mount with field tripod (item No. 0114300). This is specially designed for the large binoculars of the BT series and carries these devices absolutely safely. The excellent mechanism with adjustable friction in both axes allows easy moving and tracking. The binocular position is kept stable depending on the adjusted friction intensity. Vibrations are reduced to a minimum by the massive construction of the U-Mount and the large stainless steel tripod. Even at high magnification there are no vibrations and the finest details can be observed.FEATURES Large binoculars for observing the starry sky, nature and landscape Observe globular star clusters, glowing gas nebulae, the moon with its craters and even planets Also wild animals, ships and airplanes can be seen in detail Highly light gathering lenses produce a bright and high-contrast image All-round binoculars, but especially suitable in twilight and at night The comfortable 45 degree viewing angle allows fatigue-free use One complete lens telescope with the full light gathering power is available per eye Extremely robust binoculars with magnesium housing, sealed and filled with nitrogen Two EXPLORE SCIENTIFIC 20mm eyepieces of the 62 degree LER series already included 24x magnification and an apparent field of view of 62 degrees, true visible field of 2,6 degreesLarge interpupillary distance of 15mm to the eyepiece lens for comfortable viewing Eyepieces interchangeable and with standardized plug-in diameter of 1.25 inch / 31.7mm The magnification can be adjusted with optional eyepieces from 25x to 75x Precise brass eyepiece compression ring clamps for tilt-free fitColor and nebula filters can be used for astronomical observations Extendable dew caps prevent fogging of the outer objective lenses and stray light Integrated carrying handle facilitates transport and mounting on the tripod Tripod connection via two 1/4 inch or one 3/8 inch threaded holes (standard photo tripod thread) Tripod recommendation: EXPLORE SCIENTIFIC U-mount with field tripod (Art.No. 0114300) Objective type: Air spaced achromatic lens (2 elements/ 1 group) Coating: full multilayer coating on all optical surfaces Aperture, focal length and aperture ratio: 82mm / 470mm / F=5.7 Sealed to IPX6 standard and nitrogen filled: yes / yes Close focus distance: 35 meters Eyepiece mount diameter: 1.25'' / 31.7mm Adjustable interpupillary distance: 54 to 76 mm Helical single focus: yesBAK-4 prism system for a bright and high-contrast imageDimensions and weight of binoculars: 445 x 226 x 122mm, 4.3kg Housing color of binoculars:  white SCOPE OF DELIVERY Giant binoculars with carrying handle (without tripod)Eyepieces ES 20mm 62 degrees LER Series (2pcs)Precisely fitting foam insert for transport Dust covers for objectives and eyepiece sockets Instruction manual