LUNT Solar Eclipse Glasses (5 pieces)

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

​Spare part for blocking-filters from LUNT SOLAR SYSTEMS, suitable for B400, B500, B600, B1200 and B1800 blocking-filters.The H-alpha telescopes and filter systems from Lunt Solar Systems each include a blocking-filter. The blocking-filters have a blue colored filter part on the side facing the telescope. This blue colored filter parts may become a milky white layer at older blocking-filters if the blocking-filter was storded at high air humidity for some time. Please always store H-alpha telescopes and filters as dry as possible. If this blue colored filter part has become a milky white layer, it can be replaced with this spare part. The replacement is easy and can be done by the user himself. Installation instructions can be found here under the "Manuals" tab as a PDF for download.Please note that this replacement part can only be used on Lunt Solar Systems blocking-filters B400 to B1800. If the problem happens with the large B3400 blocking-filter, the B3400 must be sent to our service department for repair.FEATURESDiameter: 20mmCannot be used separately, only as spare part at blocking-filters from Lunt Solar SystemsFor B400, B500, B600, B1200 and B1800 blocking-filtersIt does not matter if the blocking-filters are installed in 90° zenith-mirrors or straight extension-tubesSCOPE OF DELIVERYSpare part 20mm blue glass for B400 to B1800 blocking-filters

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

Set off in search of your own fascinating discoveries at the night sky. This starter set comes with everything you need for your first astronomical observations: reflector telescope with 130 mm aperture and 650 mm focal length, equatorial mount, tripod and comprehensive astronomical accessories. The system is very easy to use and extremely versatile. It is suitable for observing the Moon, the Sun and the planets as well as star clusters and gas nebulae. Ideal for your easy start in sky observation! Astro all-rounder for beginners - the telescope The astronomical telescope is a classic reflector telescope, a so-called Newtonian reflector. One characteristic of this particular type: They are designed to look in at the front and from the side instead of the rear. Thus, the observation position always remains comfortable, even when the tube is pointed vertically into the sky. Once familiar with it, the telescope is also very easy to use. These reflector telescopes also have one important advantage regarding their optics: they are free of chromatic aberrations and thus offer good imaging properties. With its 130 mm aperture, this entry-level telescope already collects a lot of light from celestial objects. In addition, 130 mm aperture and 650 mm focal length result in a short focal ratio (ratio of aperture to focal length) of 1 to 5 (F/5). This allows you to marvel at a bright image through this fast telescope. It also allows for high magnifications, making the beginner's telescope a flexible all-rounder for sky observing. Enjoy the full range of astronomical highlights: At low to medium magnification, take in open and globular clusters such as M13 in the constellation Hercules. Or you can admire gas nebulae such as the famous Orion Nebula M42. At high magnifications, on the other hand, observing the planets or details on the Moon becomes an absolute pleasure. The 130 mm aperture offers a resolution which allows you to admire your favourite celestial objects in sharp images at magnifications of up to about 260x. Technically, even more is possible - theoretically up to 487.5x with the included accessories. However, the image sharpness can then slowly decrease with increasing magnification. Nevertheless, how much you can really magnify, depends not only on your telescope. The air turbulence in the atmosphere (seeing conditions) is also always an important factor in your astronomical observations. Please note that reflecting telescopes of the "Newton" type always produce images both laterally reversed and upside down. This does not matter for astronomical observations, which is why these telescopes are very well suited for these purposes. For nature and landscape observations during the day, however, this characteristic is disruptive. Therefore, we recommend the BRESSER refracting telescopes for this application. User-friendly and stable - mount and tripod Have you found the perfect place for your observations? Then just attach the telescope to the equatorial mount and the height-adjustable aluminium tripod. The advantage of this type of mount: unlike azimuthal models, the movement of the celestial bodies has to be counterbalanced on just one axis. For this purpose, one axis is aligned parallel to the Earth's axis by pointing it approximately at the polar star. Adjustment and tracking of the telescope is particularly precise and comfortable via the two flexible shafts with fine adjustment. And your accessories stay always within reach on the storage plate attached to the tripod.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! Complete astronomy starter package - the accessories Unpack and get started straight away - the beginner's telescope comes with lots of accessories. The LED viewfinder enables you to navigate the night sky with ease. This direction finder is installed on the telescope and projects a red dot onto a small ground-glass screen. When you look through it, the red dot appears to be floating at the exact location in the sky to which the telescope is pointed. Thus, the LED viewfinder allows you to easily find celestial objects and accurately align the telescope. Different perspectives of the night sky: With the two eyepieces included, you are able to view astronomical objects at different magnifications. With the standard 31.7 mm (1.25 inch) diameter sockets, they are simply inserted into the telescope's focuser. Do you want an even more detailed image? Then the 3x barlow lens can triple the magnification. However, during the day taking a look at the sky is also worthwhile: with the solar filter you can safely observe sunspots and granulation on our very own star. CAUTION: Never point the telescope at the Sun without the solar filter! Whether Sun, Moon, planets or deep sky objects - with the smartphone adapter you can capture your most fascinating moments on intriguing snapshots. Simply slip it over the eyepiece and take your first steps in astrophotography! FEATURES Reflector telescope with 130 mm aperture and 650 mm focal length Reflector type Newton Well suited for observing Sun, Moon and planets as well as star clusters and gas nebulae Height-adjustable tripod with equatorial EQ3 mount Precise adjustment through flexible shafts with fine adjustment in both axes Easy to use, very good for beginners Focal ratio F/5, thus well suited for many celestial objects 31.7 mm (1.25 inch) focuser Two eyepieces and one barlow lens with 31.7 mm (1.25 inch) sockets for different magnifications Safe solar observation with the included solar filter First steps in astrophotography with smartphone camera adapter SCOPE OF DELIVERY Telescope Aluminium tripod Equatorial EQ3 mount Eyepieces: 4 mm and 20 mm (1.25-inch socket) Barlow lens 3x (1.25-inch socket) LED illuminated dot viewfinder Solar filter Smartphone camera adapter Accessory tray Astronomy software download Instruction manual

Slides and cover glasses are an indispensable accessory which has also impact on the image quality. For most biological microscopes, the cover glass thickness is an important optical parameter, which is therefore included in the optical design and, if so, printed on the sleeve of every objective. You can usually see the number 0.17 which is the thickness in millimeters. For demanding applications in the laboratory, or for microphotography, using cover glasses with the desired thickness and high quality is necessary.The cover glasses included in the set are made of Boro 3.3 glass and are standardized to a thickness of 0.16-0.19mm. So they match the desired 0.17mm really good and give the best possible image quality. These Boro 3.3 cover glasses are pure white, without streaks and are pre-cleaned and ready to use. They are also especially suitable for fluorescence microscopy.The slides are made of soda lime glass, and have ground edges for safe handling. They have a matte field for writing on both sides (top and bottom). Slides and cover glasses are packed separately and in a vacuum sealed bag, containing moisture absorbent. They can be stored for a long time without loss of quality from hydrolysis and are easy to take out.