NATIONAL GEOGRAPHIC 90/900 Refractor Telescope EQ3

Please note: This book is written in German language

The Researcher Bino is a professional microscope with transmitted illumination, equipped with brilliant optics, a robust metal body and precise workmanship. It is perfect for use in school, studies, and occupation. The comfortable binocular head provides an exceptional bright image and can be individually adjusted according to the observer's needs. The objective turret, is fitted with 4 DIN objectives and offers a large variety of magnification possibilities. Focussing is done through the use of the coarse and fine adjustment wheels. The illuminator and the double-lens condensor with iris diaphragm guarantee the perfect illumination of the observed object. Features • Type: Biological microscope • View: Binocular Comfortable binocular view, 360° turnable head • Application range: Biology, Botany, Education, Teaching, Entomology • Illumination: LED Transmitted • Level: Intermediate, Expert • Warranty: 5 years • Double-lens condensor with iris diaphragm • Incl. mechanical stage • Adjustable eye relief Specifications • Magnifications: 1000x max, 40-1000x Zoom • Eyepieces: WF 10x • Eyepiece diameter: 23.2 mm • Objectives: 4x, 10x, 40x, 100x (oil immersion) • Power supply: 220/240V Included Accessories • 4 DIN-objectives • 1x2 eyepieces • Mechanical stage • Condensor • Binocular head • Immersion oil

Take pictures with your smartphone through the telescope! With the Smartphone camera adapter this is now child's play! Simply screw the adapter to the eyepiece and use your smartphone as a camera with a super-telephoto lens. It lets you take pictures of distant objects as if you were very close. FEATURES Take photos through the telescope Smartphone camera with super telephoto lens Fits 31.7mm (1.25") eyepieces For eyepiece housing diameters from 32-34mm SCOPE OF DELIVERY Smartphone holder Locking ring for the smartphone

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

Make amazing discoveries in the microcosmos and capture image and video? That is now possible and you don't need a PC to do it. The digital BRESSER Biolux Touch HDMI microscope is the perfect tool to do it. It is very versatile, ideal for school and hobby. You can easily view the image on the touchscreen.  The integrated, high quality 5MP camera sensor captures images and HD videos directly onto an SD card (SD card not included).The camera is controlled via the touch screen with an intuitive and multi language user menu. With two fingers you can zoom in to see even more detail.The microscope is also perfect to use in schools, for teaching or seminars. The live stream from the microscope can be viewed on a big monitor or TV screen with the HDMI connection. HDMI will deliver a latency free video stream with a framerate of 30 fps.The mechanical crosstable and the coarse and fine focus makes adjusting and screening the sample easy. The 40x objective is sufficient to view small microorganisms and even bacteria, e.g. from a hay infusion. With the additional reflected light you can also view (small) non transparent samples, like plant matter, sand, or insects. The reflected light should be used with the 4x lens. A sample preparation is usually not necessary in this viewing mode, which makes it especially easy for children to get their first glimpse of the micro world.FEATURESCapture images and HD video directly, no PC neededWith 5MP Aptina CMOS camera sensorLCD screen with touch and zoom functionWith fine focus and mechanical crosstableSlot for SD card (up to 32GB, not included)HDMI Type A socketUSB socket3 objectives: 4x/10x/40xLED light (transmitted / reflected), dimmableWith many accessoriesSCOPE OF DELIVERYMicroscope with touch screenHDMI cableAC adapter 5V, 1A (EU)Set of tools (preparation needles, pipette, tweezers, MikroCut)Artemia set to hatch fairy shrimpsCase with 5 prepared slides, 10 empty slides and 10 cover glassesDust cover

Explore the beauties of the night sky with this complete telescope set. Everything is included so that you can get started immediately with the fascinating hobby of astronomy: the astronomical reflector telescope with 150 mm aperture and 1,400 mm focal length, the equatorial mount, the tripod and extensive accessories for exciting observations. Especially important for beginners: the system is very easy to use. Particularly the Moon, the planets and the Sun appear impressive through the Pollux-II. Powerful performance for your first celestial observations – the telescope Take your first steps in astronomy with this classic reflector telescope of the "Newton" type. Because it is equipped with an additional lens inside the focuser, it belongs to the group of the so-called "catadioptric" optics. One advantage of this combination of lens and mirror: despite the large focal length, the telescope tube is relatively short and therefore easily transportable. In addition, you can look forward to a comfortable observation position at all times. This is because with telescopes of this design you do not look in at the back of the telescope, but at the front and laterally. So you don't have to bend down, even if the reflector telescope is pointed vertically upwards at the sky. The large aperture of 150 mm collects a lot of light from the celestial objects. In addition, 150 mm aperture and 1,400 mm focal length result in a focal ratio (ratio of aperture to focal length) of 1 to 9.3 (F/9.3). This allows you to enjoy viewing your favourite objects at high magnifications with good contrast. Admire especially the planets or details on the Moon through the entry-level telescope. But also some deep sky objects are very nice to observe: open star clusters, globular clusters and bright planetary nebulae such as the Ring Nebula M57 in the constellation Lyra can be seen beautifully through this astronomical telescope. But how close can you get to the celestial eye-catchers? The 150 mm aperture achieves a resolving power that allows magnifications of up to 300x with sharp images. The technical possibilities go far beyond this – theoretically up to 1,050x using the included accessories. However, as the magnification increases, the sharpness of the image can slowly decrease. In addition, high magnification also requires the right environmental conditions. For no matter through which telescope you look, the air turbulence in the atmosphere (seeing conditions) always influences your observation and magnification possibilities. Note for nature lovers: If you choose a Newtonian telescope like the Pollux-II reflector telescope, you can look forward to a specialist in astronomical observation. However, the image is always displayed laterally reversed as well as upside down, which makes no difference when observing the sky. However, this type of telescope is less suitable for nature and landscape observation during the day. Would you like to use your new telescope for exciting nature discoveries as well? Then we recommend that you choose one of the BRESSER refractor telescopes. Solid base for gazing skywards – mount and tripod Have you found the perfect location for your journey of discovery into the night sky? Then simply mount your astronomical telescope with the equatorial mount on the height-adjustable aluminium tripod. The special feature of this type of mount: after the so-called "alignment", the positioning of an axis parallel to the Earth's axis, the movement of the celestial bodies only has to be compensated for on this one axis. To do this, you simply point the axis approximately at Polaris. This is a huge advantage over the azimuthal mount, where both axes are moved simultaneously. In addition, the two flexible shafts with fine adjustment make adjusting and tracking the telescope very precise and comfortable. And to ensure that accessories are always at hand, they can be stored on the handy shelf 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 you need, night and day – the accessories The astronomical telescope comes with a wide range of equipment so that you can start admiring the Moon, planets or the Sun straight away. At night, the LED viewfinder helps you keep an overview of the sky. Once installed parallel on the tube and correctly aligned, the small red dot shows you where the telescope is pointing when you look through it. This way, you can align the optics precisely and find celestial bodies more quickly before you then take a closer look with the high magnification. Varying views of the universe: the two eyepieces allow you to marvel at your observation objects in different magnifications. They are simply inserted into the telescope's focuser using their sockets with a standardised 1.25 inch (31.7 mm) diameter. You want to see even more details? Then go for the 3x barlow lens, which triples the magnification of the eyepieces. If you would like to make astronomical discoveries even during the day, use the solar filter to observe the star of our own solar system. It allows you to easily and safely observe sunspots and granulation on the sun. CAUTION: Never point the telescope at the sun without the solar filter! Capture special highlights easily – with the smartphone adapter, you use your smartphone as a camera for your telescope. This way you can quickly take your first photos of the Moon or the Sun, for example, and get started in astrophotography. FEATURES Reflector telescope with 150 mm aperture and 1,400 mm focal length Reflector type catadioptric Well suited for observing the Sun, Moon and planets Height-adjustable tripod with equatorial EQ3 mount Precise adjustment through flexible shafts and fine adjustment in both axes Easy to use, very suitable for beginners Focal ratio F/9.3, therefore good for observing the planets and details on the moon 1.25 inch (31.7 mm) eyepiece focuser Two eyepieces and one barlow lens with 1.25 inch (31.7 mm) extension tubes for different magnifications Safe solar observation with the included solar filter Entry into astrophotography with smartphone camera adapter SCOPE OF DELIVERY Telescope Aluminium tripod Equatorial EQ3 mount Eyepieces: 4 mm and 20 mm (1.25 inch sockets) Barlow lens 3x (1.25 inch socket) LED illuminated dot finder Solar filter Smartphone camera adapter Accessory tray Astronomy software download Instruction manual