{"title":"Optolong Dual \u0026 Multi-Band Filters","description":"\u003cp\u003eL-eNhance, L-eXtreme, L-Ultimate, L-Para, L-Synergy and combination sets.\u003c\/p\u003e","products":[{"product_id":"optolong-l-enhance-filter-triple-bandpass-for-light-pollution-imaging","title":"Optolong L-eNhance Filter – Triple-Bandpass for Light Pollution Imaging","description":"\u003ch1\u003eThe Optolong L-eNhance Filter - Triple-Bandpass for Light Pollution\u003c\/h1\u003e\n\n\u003cp\u003eDesigned to maximise your imaging potential under light-polluted skies, the \u003cb\u003eOptolong L-eNhance Filter \u003c\/b\u003eis a triple-bandpass narrowband filter, ideal for DSLR, color CMOS, and CCD cameras. It isolates key nebula emission lines like H-alpha, H-beta, and OIII, with up to 90% transmission efficiency.\u003c\/p\u003e\n\n\u003ch2\u003eOptolong L-eNhance Filter Key Features\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLight Pollution Solution:\u003c\/strong\u003e Blocks unwanted light while allowing critical emission lines to pass, making it ideal for urban imaging.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDesigned for Color Cameras:\u003c\/strong\u003e Ideal for DSLR and color CMOS cameras, providing a practical and economical alternative to monochrome setups with multiple filters.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHigh Transmission:\u003c\/strong\u003e Allows up to 90% transmission of H-alpha, H-beta, and OIII nebula emission lines for crisp, clear images.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable border=\"1\"\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eSubstrate:\u003c\/td\u003e\n            \u003ctd\u003eB270\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eThickness:\u003c\/td\u003e\n            \u003ctd\u003e1.85mm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eTpeak:\u003c\/td\u003e\n            \u003ctd\u003eT\u0026gt;90%\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eBlocking range:\u003c\/td\u003e\n            \u003ctd\u003e300-1000nm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eBlocking depth:\u003c\/td\u003e\n            \u003ctd\u003eLight pollution blocking \u0026gt;99%\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eSurface quality:\u003c\/td\u003e\n            \u003ctd\u003e60\/40\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eTransmitted Wavefront RMS:\u003c\/td\u003e\n            \u003ctd\u003eλ\/4\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eParallelism (arcsec):\u003c\/td\u003e\n            \u003ctd\u003e30s\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eAvailable Sizes\u003c\/h2\u003e\n\u003cp\u003eCurrently available in 1.25\" and 2\" mounted options. Other sizes will be listed when available.\u003c\/p\u003e\n\n\u003ch2\u003eSample Images\u003c\/h2\u003e\n\u003cp\u003eImaging target: Vela Supernova Remnant\u003cbr\u003e\nCamera: CentralDS Astro A7s (cooled)\u003cbr\u003e\nLens: Canon EF 300mm f\/4L (non-IS)\u003cbr\u003e\nFilter: Optolong L-eNhance\u003cbr\u003e\nISO: 6400\u003cbr\u003e\nExposure: 1min x 81 frames\u003cbr\u003e\nProcess: PI, PS CC\u003c\/p\u003e\n\n\u003ch2\u003eOrder Your Optolong L-eNhance Filter Today\u003c\/h2\u003e\n\u003cp\u003eElevate your astrophotography with the \u003cstrong\u003eOptolong L-eNhance Filter\u003c\/strong\u003e, the ideal solution for light-polluted skies. Order now at Dark Clear Skies and capture stunning nebula details with ease.\u003c\/p\u003e","brand":"Optolong","offers":[{"title":"1.25\"","offer_id":42296580735153,"sku":"OPT-L-eNh-1.25","price":116.0,"currency_code":"GBP","in_stock":true},{"title":"2\"","offer_id":42296580767921,"sku":"OPT-L-eNh-2","price":149.0,"currency_code":"GBP","in_stock":true},{"title":"EOS-C","offer_id":42296584667313,"sku":"OPT-L-eNh-EOS-C","price":175.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/optolong-l-enhance-filters-965906.webp?v=1718364490"},{"product_id":"optolong-l-extreme-filter","title":"Optolong L-eXtreme Filter","description":"\u003ch3\u003eOptolong L-eXtreme Filter – Best Light Pollution Filter for Astrophotography\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eOptolong L-eXtreme Filter\u003c\/strong\u003e is one of the most advanced light pollution filters available, engineered to allow astrophotographers to capture high-contrast celestial images under light-polluted skies. With a focus on the \u003cstrong\u003eH-alpha and OIII emission lines\u003c\/strong\u003e, this dual narrowband filter provides superior image clarity, even in urban environments. Whether you’re using a \u003cstrong\u003eDSLR, CCD, or CMOS camera\u003c\/strong\u003e, the L-eXtreme filter enables you to capture detailed nebulae and other deep-sky objects with remarkable accuracy.\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTargets \u003cstrong\u003eH-alpha (656.3nm)\u003c\/strong\u003e \u0026amp; \u003cstrong\u003eOIII (495.9nm, 500.7nm) emission lines\u003c\/strong\u003e for enhanced nebula imaging.\u003c\/li\u003e\n\u003cli\u003eEliminates 99.9% of light pollution, blocking major artificial light sources like mercury (Hg) and sodium (Na) vapor lamps.\u003c\/li\u003e\n\u003cli\u003eAchieves an impressive 93% transmission rate, ensuring high signal clarity and sharp contrast.\u003c\/li\u003e\n\u003cli\u003eIdeal for use with \u003cstrong\u003eDSLRs, CCDs, and CMOS cameras\u003c\/strong\u003e for astrophotography enthusiasts of all skill levels.\u003c\/li\u003e\n\u003cli\u003eSuitable for capturing nebulae, galaxies, and star clusters under heavily light-polluted skies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow the Optolong L-eXtreme Works:\u003c\/h2\u003e\n\u003cp\u003eThis filter is designed to isolate the narrow emission lines of deep-sky nebulae, specifically \u003cstrong\u003eH-alpha and OIII\u003c\/strong\u003e, while blocking out the majority of artificial light pollution. It's perfect for capturing emission nebulae such as the Orion Nebula (M42), the Horsehead Nebula (IC 434), and planetary nebulae like the Ring Nebula (M57). By targeting these specific wavelengths, the L-eXtreme filter ensures higher contrast and more detailed astrophotographs.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications:\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eOptolong L-eXtreme Filter\u003c\/strong\u003e is optimized for deep-sky astrophotography, particularly for emission nebulae. Here’s what makes it special:\u003c\/p\u003e\n\u003ch3\u003eMajor Emission Lines Targeted:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eH-alpha (656.3nm)\u003c\/strong\u003e – The red emission line emitted by hydrogen atoms, found in many nebulae.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eH-beta (486.1nm)\u003c\/strong\u003e – A complementary emission line emitted by hydrogen atoms, also targeted for nebula imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOIII (495.9nm, 500.7nm)\u003c\/strong\u003e – Emission lines from doubly ionized oxygen, often found in planetary and emission nebulae.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eArtificial Light Pollution Blocked:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMercury (Hg) lines\u003c\/strong\u003e: 435.8nm, 546.1nm, 577nm, 578.1nm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSodium (Na) lines\u003c\/strong\u003e: 598nm, 589.6nm, 615.4nm, 616.1nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: Optolong continuously optimizes the performance of this filter based on real-world testing, so technical data may be subject to updates.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eAvailable Sizes:\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eOptolong L-eXtreme Filter\u003c\/strong\u003e is available in the following sizes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e1.25” mounted\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e2” mounted\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOther sizes will be listed as they become available.\u003c\/p\u003e\n\u003ch2\u003eAstrophotography Results:\u003c\/h2\u003e\n\u003cp\u003ePhotographers around the world have achieved breathtaking images using the Optolong L-eXtreme Filter, even under severe light pollution conditions. Whether you're working with a \u003cstrong\u003eDSLR camera\u003c\/strong\u003e or a more advanced \u003cstrong\u003eCCD\/CMOS setup\u003c\/strong\u003e, this filter helps you capture intricate details of nebulae and other deep-sky objects, making it a must-have for astrophotographers in urban environments.\u003c\/p\u003e\n\u003ch3\u003eExample Captures with the Optolong L-eXtreme:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eObject:\u003c\/strong\u003e M42 (Orion Nebula)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera:\u003c\/strong\u003e ZWO ASI183MC Pro\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTelescope:\u003c\/strong\u003e Sky-Watcher N130\/650 with coma corrector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount:\u003c\/strong\u003e iOptron CEM25EC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuide:\u003c\/strong\u003e 120mm mini guide scope, ZWO ASI120MM mini\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight Pollution:\u003c\/strong\u003e Level 7–8 (City center, high light pollution area)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Example:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eObject:\u003c\/strong\u003e NGC6946, Barnard 150, and Sh2-129 Flying Bat Nebula\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera:\u003c\/strong\u003e Canon 6D (modified) + WO SpaceCat 51\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilters:\u003c\/strong\u003e Optolong L-eXtreme \u0026amp; L-Pro\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData:\u003c\/strong\u003e RGB 25 x 600\" ISO 3200 (Optolong L-Pro) \/ H-Alpha \u0026amp; OIII 20 x 1500\" ISO 3200 (Optolong L-eXtreme)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePackage Details:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-quality silver cardboard box for storage\u003c\/li\u003e\n\u003cli\u003ePlastic PP box for added durability\u003c\/li\u003e\n\u003cli\u003eImported high-pressure EVA case lining to protect your filter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose the Optolong L-eXtreme Filter?\u003c\/h2\u003e\n\u003cp\u003eWhether you’re an experienced astrophotographer or a hobbyist looking to take your images to the next level, the \u003cstrong\u003eOptolong L-eXtreme Filter\u003c\/strong\u003e is a powerful tool that delivers incredible results. Its ability to cut through light pollution, combined with its high transmission rates, makes it a top choice for capturing nebulae, galaxies, and other deep-sky objects.\u003c\/p\u003e\n\u003ch2\u003eGet Yours Now!\u003c\/h2\u003e\n\u003cp\u003eThe Optolong L-eXtreme Filter is available for immediate purchase in \u003cstrong\u003e1.25” mounted\u003c\/strong\u003e and \u003cstrong\u003e2” mounted\u003c\/strong\u003e sizes. Upgrade your astrophotography gear today and start capturing the cosmos in stunning detail, even from the heart of the city.\u003c\/p\u003e","brand":"Optolong","offers":[{"title":"1.25\"","offer_id":42296588239025,"sku":"OPT-L-eXtr-1.25","price":163.0,"currency_code":"GBP","in_stock":true},{"title":"2\"","offer_id":42296588271793,"sku":"OPT-L-eXtr-2","price":193.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/optolong-l-extreme-filter-121106.jpg?v=1718364497"},{"product_id":"optolong-l-ultimate","title":"Optolong L-Ultimate","description":"\u003ch2 class=\"title page-title\"\u003eOptolong L-Ultimate Light Pollution Dual-Bandpass 3nm Narrowband Imaging Filter - 2\"\u003c\/h2\u003e\n\u003cp\u003eThis listing is for the 2-inch filter.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt's about a 3nm dual band designed to drastically reduce the effect of light pollution, the 3nm isolates the nebulae's emissions into H-Alpha (red) and OIII (green-blue). It blocks light pollution, maximizes the signal from nebulae, and darkens the sky background. It also blocks artificial light from mercury vapor lamps, high and low pressure sodium vapor lights, and unwanted natural light caused by the emission of neutral oxygen in our atmosphere. Maximizes the transmission of the main emission lines of the nebula in OIII (496nm and 500nm) and H-alpha (656nm). Used with DSLR, colour\/MONO CMOS and CCD, however, this filter is not suitable for fast ratio systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe advantage of L-Ultimate is that it only passes through the emission lines OIII(500.7nm) and Ha(656.3nm), in which case all other light pollution emission lines are eliminated so that only the emission and reflection signals of the nebula are captured during imaging. Therefore, the sky background of the image is darker, and the contrast between the nebulae and the signal-to-noise ratio are improved to the greatest extent. In heavy light pollution areas, the product can also selectively filter light pollution and clutter signals through the emission lines of nebulae, and finally avoid the impact of light pollution on astrophotography.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt is different from the series of dual-narrowband L-eNhance and L-eXtreme in that L-Ultimate is a dual-3nm bandwidth filter that only passes through Ha and OIII emission lines. You will get a darker sky background, more contrast of the image and the suppression on stars. L-Ultimate has also been optimized in terms of halo performance, so that there is no obvious halo when shooting on a bright star object.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable cellspacing=\"2\" cellpadding=\"1\" border=\"1\" align=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSbustrate\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eoptical glass\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eFWHM\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOIII 3nm Ha 3nm\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBlocking range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003e300-1000nm\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBlocking\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003e\u0026gt;OD4\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSurface quality\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003e60\/40\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eTransmitted Wavefront RMS:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eλ\/4\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eParallelism\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003e30seconds\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eReference Spectrum\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/optolong.com\/uploads\/images\/20220813\/affa162a0200e85a43f613d6409654fc.png\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e※This curve is only for reference, and is not used as the final product data.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCoating Technology\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e·Multi-layers anti-reflection coating\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e·Non-cementing optical substrate coating\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e·Optolong filter adopts precision coating based on Ion-assisted deposition coating technology for durability and resistance to scratching, as well as stability on CWL(central wavelength) no deviation affected by temperature change.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e·Planetary rotation system offers precision and homogeneity of coatings ensuring high value on transmission of pass-band and Optical density of off-band.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePackage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/optolong.com\/uploads\/images\/20191111\/f778991ef77732079f9b4bfa1f7010d4.png\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cu\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/optolong.com\/uploads\/images\/20191111\/9be9f501063812f34002518b35d63397.png\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/u\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eL-Ultimate Filter Performance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e►\u003c\/strong\u003e\u003cu\u003e\u003cstrong\u003eNebulosa Laguna M8\u003c\/strong\u003e\u003c\/u\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTelescopio: Askar fra600\u003cbr\u003eCamera: Zwo Asi 294 mc pro\u003cbr\u003eMontatura: Skywatcher AZ-EQ5\u003cbr\u003eAutoguida: Zwo mini guide con zwo asi 224mc\u003cbr\u003e\u003cstrong\u003eFiltro Optolong L-Ultimate\u003c\/strong\u003e\u003cbr\u003eSoftware d'acquisizione Sgpro\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCredit: Gianni Lacroce (Italy)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.optolong.com\/uploads\/images\/20230626\/5e110a4ddc0ff90f9d83e0abe8c198a4.jpg\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e►\u003c\/strong\u003e\u003c\/span\u003e\u003cu\u003e\u003cstrong\u003e\u003cspan\u003eThe Pelican Nebula (also known as IC 5070 and IC 5067)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Pelican Nebula (also known as IC 5070 and IC 5067) is an HII region associated with the North American Nebula in the Swan constellation whose gaseous formations bear a vague resemblance to a pelican, from which it takes its name. The Pelican Nebula is located near the first-magnitude star Deneb, and is separated from its more prominent neighbour, the North American Nebula, by a foreground molecular cloud filled with dark dust. Both are part of the larger HII region of Westerhout 40.\u003cbr\u003eThe Pelican is much studied because it has a particularly active mix of star formation and evolving gas clouds. The light from the young energetic stars is slowly turning the cold gas into hot gas and gradually advancing an ionisation front outwards. Particularly dense filaments of cold gas can still be seen, and among them are two jets emitted by Herbig-Haro object 555. In millions of years this nebula may no longer be known as the Pelican, as the balance and position of stars and gas will leave something that will look completely different.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKonus 200\/1000 @960mm, f\/4.8\u003cbr\u003eQhyccd Qhy168c @-5 °C\u003cbr\u003eSky-Watcher Eq6r Pro mount\u003cbr\u003e\u003cstrong\u003eOptolong L_Ultimate filter 122x300\"\u003c\/strong\u003e\u003cbr\u003eSvbony UV\/IR-cut filter 114x30\"\u003cbr\u003eN.I.N.A., DSS, APP, PixInsight, PS\u003cbr\u003eFerrara (Italy)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCredit: Massimo Di Fusco (Italy)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.optolong.com\/uploads\/images\/20230621\/48a7fe116503c240ca8a5b4957a253cf.jpg\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e►\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e\u003cu\u003eWR 134\u003c\/u\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWR 134 is a variable Wolf-Rayet star located around 6,000 light years away from Earth in the constellation of Cygnus, surrounded by a faint bubble nebula blown by the intense radiation and fast wind from the star. It is five times the radius of the sun, but due to a temperature over 63,000 K it is 400,000 times as luminous as the Sun.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWR 134 was one of three stars in Cygnus observed in 1867 to have unusual spectra consisting of intense emission lines rather than the more normal continuum and absorption lines. These were the first members of the class of stars that came to be called Wolf-Rayet stars (WR stars) after Charles Wolf and Georges Rayet who discovered their unusual appearance.\u003cbr\u003eAsi2600mc pro +\u003cstrong\u003e L ultimate\u003c\/strong\u003e\u003cbr\u003eCredit: Cédric Humbert\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.optolong.com\/uploads\/images\/20230626\/09211c00b82c3d4786c812cad5755978.jpg\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e►\u003c\/strong\u003e\u003c\/span\u003e\u003cu\u003e\u003cspan\u003e\u003cstrong\u003eThor's Lightning and the Angelo’s nebulae (Martino-Sainty Object 1)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eVersion OIII\/RGB\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWe have photographed the LDN 1400 object that hides the SNR G150.3+4.5, aka \"Thor's Lightning.\"\u003cbr\u003eA collaboration on data acquisition allowed us to highlight the SNR signal but also to unveil an OIII shell around the star \"CI Camelopardalis\".\u003cbr\u003eThe StDr team, which supported us on this project, analyzed our data and helped us to register this discovery, allowing us to open the Martino-Sainty Object (MarSai O) catalog.\u003cbr\u003eMarSai O 1 was named the \"Angelo's Nebula\", in homage to my father who has passed away 2 years ago.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- My equipment and exifs:\u003cbr\u003eRGB exifs: 269x300s\u003cbr\u003eAlpha exifs : 83x600s\u003cbr\u003eTakahashi FSQ85-EDX scope and ZWO ASI2400MC camera and \u003cstrong\u003eOptolong L-Ultimate filter \u003c\/strong\u003efor the Hydrogen Alpha signal.\u003cbr\u003eSky-Watcher EQ6-R Pro mount driven by AsiAir Plus\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- Yann 's equipment and exifs :\u003cbr\u003eExifs Oiii : 60x600s\u003cbr\u003eTakahashi FSQ106-EDX4 scope with reducer, and ZWO ASI2600MM camera and Antlia 3Nm 36mm filter\u003cbr\u003eSky-Watcher EQ6-R Pro mount driven via NINA.\u003cbr\u003eTotal integration 46h15\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePre-processing was done with Siril and post-processing with PixInsight and Photoshop.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eImage Credit: Nicola Martino (France)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/www.optolong.com\/uploads\/images\/20230626\/a374dbbc10b86a04d9b5049ca4348bbf.jpg\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.optolong.com\/uploads\/images\/20230518\/e31b9d75287e4fbd1a9d4c2f874bab82.jpg\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e►\u003cu\u003eThe Cigar Galaxy (also known as M 82 or NGC 3034)\u003c\/u\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMessier 82 (also known as NGC 3034, Cigar Galaxy or M82) is a starburst galaxy approximately 12 million light-years away in the constellation Ursa Major. It is the second-largest member of the M81 Group, with the D25 isophotal diameter of 12.52 kiloparsecs (40,800 light-years). It is about five times more luminous than the Milky Way and its central region is about one hundred times more luminous. The starburst activity is thought to have been triggered by interaction with neighbouring galaxy M81. As one of the closest starburst galaxies to Earth, M82 is the prototypical example of this galaxy type. SN 2014J, a type Ia supernova, was discovered in the galaxy on 21 January 2014.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTechnical data: \u003cbr\u003e204*180s G1600 T-20 \u003cbr\u003e34*120s G1600 T-20\u003cbr\u003e79*900s G1600 T-20 \u003cbr\u003eEquipment:Skywatcher 254 F5 @1033mm (F4)\u003cbr\u003eSkywatcer 0.87x Coma Corrector\u003cbr\u003eQHYCCD QHY294c \u003cbr\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/optolong.com\/cms\/document\/detail\/id\/13.html\"\u003eL-Pro Optolong \u003c\/a\u003e\u003c\/strong\u003e\u003cbr\u003eOptolong \u003cstrong\u003e\u003ca href=\"https:\/\/optolong.com\/cms\/document\/detail\/id\/192.html\"\u003eL-Ultimate\u003c\/a\u003e\u003c\/strong\u003e\u003cbr\u003eZWO OAG + ASI290mm Mini Ioptron CEM70 \u003cbr\u003eSoftware: N.I.N.A. + PHD2\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eShots by Francesco Roots (Italy)\u003cbr\u003eProcessing by Mirko Tondinelli (Italy)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.optolong.com\/uploads\/images\/20230407\/52efe4b2f073abea96ce93d0394bb957.jpg\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eWarm prompt\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e●About colour: due to the influence of ambient light, colour difference of the display and flash photography, the colour of the product may have some colour difference. Detailed colour is in accordance with the final product.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e●About coating: the interference filter will show different colours under different light, which is a normal phenomenon. Please refer to the material object.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e●About the style: in order to improve the product, the change of design\/appearance\/parameters has not been updated in time. Please see the subject produce.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e●About the description: the series of this product have the same material, technology and design, different sizes only, please note.\u003c\/span\u003e\u003c\/p\u003e","brand":"Optolong","offers":[{"title":"2\"","offer_id":42296625135793,"sku":null,"price":289.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/optolong-l-ultimate-791493.webp?v=1718364502"}],"url":"https:\/\/www.darkclearskies.co.uk\/collections\/optolong-hub-dual-multi.oembed","provider":"Dark Clear Skies ","version":"1.0","type":"link"}