EXPLORE SCIENTIFIC 1.25" O-III Nebula Filter 6.5nm

Apart from air turbulence, the brightening of the night sky is the greatest barrier to observing faint objects beyond the solar system. Due to streetlamps and other artificial lighting the sky in urban areas is no longer properly black. As a result, the contrast and thus the perception of deep-sky objects also suffer. However, depending on the type of celestial object, it is possible to filter out some of the interfering light making it easier to photograph the objects.The EXPLORE SCIENTIFIC H-Alpha filter uses the characteristic of the so-called emission nebulae. These objects glow in certain colors, the so-called emission lines. The emission lines are associated with certain chemical elements - in this case the red glowing hydrogen. This filter blocks all other colors (and therefore almost all artificial light) and lets only the emission lines of hydrogen through. Especially the disturbing light of mercury and sodium vapor lamps is effectively blocked. The effect is amazing: Suddenly, nebulae become visible on the photos in places which appear completely empty without the filter.The EXPLORE SCIENTIFIC H-Alpha Nebula Filter has been developed exclusively for astrophotography. Especially in heavy light-polluted skies many emission nebulae are only visible and shown in full expanse on astrophotos when using this filter. The H-Alpha nebula filters make astrophotography near the city possible and the use leads to amazingly good image results despite the existing light pollution. A must for every urban astrophotographer.The EXPLORE SCIENTIFIC nebula filters are delivered with an individual test report - so you can be sure to get high quality filters.This filter's narrow passband of only 7 nm bandwidth works out the faint emission nebulae or makes them visible even under difficult urban conditions. FEATURESH-Alpha filters are used exclusively for astrophotographyAllows photography of emission nebulae that glow in the light of red hydrogenMany of these emission nebulae are only visible in their full expansion on photos taken with this filterBlocks almost all artificial light, especially from mercury and sodium vapor lampsOnly allows the emission line of red hydrogen to pass throughNarrow band version for difficult urban conditionsTransmission bandwidth: 7 nmAllows more contrast and detail for all urban astrophotographersIdeal for use near cities, in heavy brightened skiesIndividual test certificate included to guarantee you receive a premium filterSCOPE OF DELIVERY1x 1.25'' H-Alpha Nebula Filter

One of the most important obstacles for the exploration of the night sky is the brightening of the night sky by artificial lights, such as streetlights. The night sky is not really dark in the vicinity of towns or cities, which reduces the visibility of objects bejond the solar systems enourmously. Depending on the type of the celestial object it is possible to increase the contrast dramatically by blocking the annoying artifical light. The Explore Scientific H-beta filter uses a characteristic property of the so called emmission nebulae. Those objekcts glow in special colors, the so called emmission lines. Those emmission lines are linked to chemical elements - in this case hydrogen. The Explore Scientific H-beta nebula filter blocks all other colors (and thereby nearly all of the artificial light) and only the emmission line of the hydrogen can pass the filter. The result is astonoishing: suddenly nebulae are visible at locations that were completely empty without filters. In suburbian skies for example the horsehead nebula is almost not visible with a 300mm telescope. By using this filter you can see the nebula and its structures without problems. A must for every visual observer. The Explore Scientific nebula filters come with a individual test certificate - your guarantee to receive a premium filter.

One of the most important obstacles for the exploration of the night sky is the brightening of the night sky by artificial lights, such as streetlights. The night sky is not really dark in the vicinity of towns or cities, which reduces the visibility of objects beyond the solar system enormously. Depending on the type of celestial object, it is possible to increase the contrast dramatically by blocking the interfering artificial light. The EXPLORE SCIENTIFIC S-II filter uses the property of the so-called emission nebulae. These objects glow in certain colors, the so-called emission lines. The emission lines are associated with certain chemical elements - in this case ionized sulfur. The EXPLORE SCIENTIFIC S-II nebula filter blocks all other colors (and thus almost all artificial light) and lets only the emission lines of ionized sulfur at 672 nm through. The effect is amazing: suddenly, nebulae become visible in places that appear completely empty without the filter. In slightly brightened skies many planetary nebulae, emission nebulae and supernova remnants can be seen without any difficulties when using this filter. A must for every visual observer and for astrophotography. EXPLORE SCIENTIFIC nebula filters come with an individual test report - so you can be sure to get high quality filters. FEATURES Simplifies the observation of planetary nebulae, emission nebulae and supernova remnants Blocks almost all artificial light Lets only the emission lines of ionized sulfur at 672 nm pass Transmission bandwidth: 12 nm Allows for more contrast in faint deep sky objects Ideal for use near cities, in slightly brightened skies Individual test certificate included to guarantee you receive a premium filter SCOPE OF DELIVERY 1x 1.25'' S-II nebula filter

Smart Telescope for Everyone: Easy Access to the Night Sky Reach for the stars with the ZWO Seestar S50 Smart Telescope. This innovative, smart apochromat combines high-quality optics and smart technology with incredible ease of use! Imagine sitting relaxed on your terrace, a glass of wine in hand, while the Seestar S50 explores the vast expanses of the universe for you and sends real-time images to your smartphone or tablet. Astronomy from the Comfort of Your Couch Simply choose your desired object from the countless galaxies and nebulae available in the star catalog of the intuitive app. The ZWO Seestar S50 Smart Telescope will automatically move to the selected object. The all-rounder automatically focuses on the celestial object before beginning the capture and sends real-time images to your smartphone or tablet. The smart telescope independently sets the optimal camera settings such as exposure time, ISO value, or aperture. High-Quality Optics Meets Smart Technology The high-quality apochromat refractor optics of the Seestar S50 ensure exceptionally clear and color-accurate images. The combination of top-notch optics, advanced automatic star recognition, and effective GoTo functionality makes this smart telescope a powerful instrument for night observation and astrophotography – accessible to everyone! The integrated camera supports high resolutions that capture even the finest details in distant galaxies and nebulae. Focus on the Essentials The Seestar S50 features an integrated filter change mechanism that can be controlled via the app. By default, the UV/IR-CUT filter is used, eliminating unwanted infrared and ultraviolet light while allowing the crucial H-alpha emission nebula band for astronomical photography to pass through. This results in more contrast-rich images of many deep-sky objects. Automatic Image Stacking for Razor-Sharp Shots The Seestar S50 uses the stacking method for creating astrophotos. Multiple individual images are combined or "stacked" in real-time to form a new image. The final image becomes sharper and more detailed as more individual images are combined. Experience how a galaxy millions of light-years away takes shape before your eyes, revealing more details with each passing minute. The result is exceptionally clear images that reveal the depths of space with impressive detail. For Stacking Pros Too Already familiar with stacking and prefer to do the image processing yourself? No problem – the Seestar saves each individual image in RAW format in its internal storage on request. Also a Master of Observation During the Day Not only stars and galaxies at night, but the Seestar S50 also offers fascinating observation possibilities during the day. Create landscape images and safely observe the sun with the included solar filter, marveling at its impressive sunspots. The S50 is a true all-rounder for any time of day or night. Share Your Discoveries The Seestar S50 makes it easy to quickly and easily share your astrophotographic achievements with friends or the astronomy community. With just a few clicks, you can publish your images directly from the app on social networks. Whether capturing fascinating lunar craters, glowing nebulae, or colorful galaxies – share your observations and inspire others with your discoveries! FEATURES Optic Type: Apochromat Refractor Automatic image stacking for enhanced sharpness and detail without extensive PC post-processing Smart telescope with fully automatic alignment and tracking Telescope for night and solar observation as well as landscapes Operation via an intuitive app (iOS/Android) Live-view observation and photography in real-time Compact and lightweight design for maximum mobility Integrated Wi-Fi function High optical resolution for sharp and detailed astrophotography SCOPE OF DELIVERY ZWO Seestar S50 Smart Telescope Integrated camera for high-resolution astrophotography Solar filter for safe daytime observations Carbon tripod Carrying case USB-C charging cable (power adapter not included) User manual Access data to the extensive star and galaxy catalog app

One of the most important obstacles for the exploration of the night sky is the brightening of the night sky by artificial lights, such as streetlights. The night sky is not really dark in the vicinity of towns or cities, which reduces the visibility of objects beyond the solar systems enormously. Depending on the type of the celestial object it is possible to increase the contrast dramatically by blocking the annoying artificial light. The EXPLORE SCIENTIFIC O-III filter uses a characteristic property of the so called emission nebulae. Those objects glow in special colours, the so called emission lines. Those emission lines are linked to chemical elements - in this case oxygen. The EXPLORE SCIENTIFIC O-III nebula filter blocks all other colours (and thereby nearly all of the artificial light) and only the two emission lines of the oxygen can pass the filter. The result is astonishing: suddenly nebulae are visible at locations that were completely empty without filters. In suburban skies for example the veil nebula NGC 6992 is almost not visible with a 200mm telescope. By using this filter you can see the nebula and its structures without problems. A must for every visual observer. The EXPLORE SCIENTIFIC nebula filters come with a individual test certificate - your guarantee to receive a premium filter.FEATURESenables the observation of so called emission nebulaeblocks almost the entire artificial lightonly the two emission lines of ionised oxygen passes the filterWHAT'S INCLUDED1x 2" O-III nebula filter

One of the most important obstacles for the exploration of the night sky is the brightening of the night sky by artificial lights, such as streetlights. The night sky is not really dark in the vicinity of towns or cities, which reduces the visibility of objects beyond the solar systems enourmously. Depending on the type of the celestial object it is possible to increase the contrast dramatically by blocking the annoying artifical light. The EXPLORE SCIENTIFIC O-III filter uses a characteristic property of the so called emmission nebulae. Those objekcts glow in special colors, the so called emmission lines. Those emmission lines are linked to chemical elements - in this case oxygen. The EXPLORE SCIENTIFIC O-III nebula filter blocks all other colors (and thereby nearly all of the artificial light) and only the two emmission lines of the oxygen can pass the filter. The result is astonoishing: suddenly nebulae are visible at locations that were completely empty without filters. In suburbian skies for example the veil nebula NGC 6992 is almost not visible with a 200mm telescope. By using this filter you can see the nebula and its structures without problems. A must for every visual observer. The EXPLORE SCIENTIFIC nebula filters come with a individual test certificate - your guarantee to receive a premium filter.FEATURESenables the observation of so called emmission nebulaeblocks almost the entire artificial lightonly the two emmission lines of the oxygen passes the filterSCOPE OF DELIVERY1x 1,25" O-III nebula filter

One of the most important obstacles for the exploration of the night sky is the brightening of the night sky by artificial lighting, such as street lights. The night sky is not really dark in the vicinity of towns or cities, which reduces the visibility of objects beyond the solar system enormously. Depending on the type of celestial object, it is possible to increase the contrast dramatically by blocking the interfering artificial light. The EXPLORE SCIENTIFIC O-III filteruses a characteristic property of the so-called emission nebulae. Those objects glow in special colours, the so-called emission lines. Those emission lines are linked to chemical elements - in this case, oxygen. The EXPLORE SCIENTIFIC O-III nebula filterblocks all other colours (and thereby nearly all the artificial light) and only the two emission lines of the oxygen can pass the filter. The result is astonishing: suddenly, nebulae are visible in locations that were completely empty without using filters. In suburban skies, for example, the veil nebula NGC 6992 is almost invisible with a 200 mm telescope. By using this filter, you can see the nebula and its structures without any difficulties. A must for every visual observer and for astrophotography. The EXPLORE SCIENTIFIC nebula filterscome with an individual test certificate - your guarantee for receiving a premium filter. This filter's narrow passband of only 6.5 nm bandwidth highlights the faint emission nebulae or makes them visible even under difficult urban conditions. FEATURES enables the observation of so-called emmission nebulae blocks almost the entire artificial light only the two emmission lines of the oxygen passes the filter band pass width: 6.5 nm narrow band version for difficult urban conditions allows more contrast for faint deep sky objects ideal for use near cities, in heavy brightened skies individual test certificate included to guarantee you receive a premium filter SCOPE OF DELIVERY 1x 2'' O-III nebula filter