{"product_id":"used-optolong-uv-ir-cut-2-mounted-filter","title":"Used Optolong UV-IR Cut 2\" Mounted Filter","description":"\u003cp\u003eThis is an Optolong 2\" UV\/IR filter in excellent condition, absolutely clean surfaces, in its original jewel case.  \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 data-eapps-font-size=\"24\" data-eapps-line-height=\"36\"\u003eOptolong UV-IR Cut Filter - 1.25\"\u003c\/h2\u003e\n\u003cp data-eapps-font-size=\"16\" data-eapps-line-height=\"24\"\u003eIf you're looking to improve the quality of your astrophotography images, the Optolong UV-IR cut filter is exactly what you need! When you block Ultraviolet and Infrared transmissions, you will see improved image sharpness, contrast, and minimized distortion from color fringing. They're especially useful when you're not using a dedicated astronomy camera with built-in filtering.\u003c\/p\u003e\n\u003cp data-eapps-font-size=\"16\" data-eapps-line-height=\"24\"\u003eThe Optolong UV-IR cut filter blocks Ultraviolet and Infrared transmissions while letting the visible spectral region shine through, which reduces pesky violet star halos! Star halos are often caused by IR and UV light being slightly out of focus; this \"unfocused glow\" creates a halo around bright stars. When this transmission is reduced, you will see that overall, soft images are a thing of the past. This filter ensures only well-focused visible light reaches the sensor, resulting in tighter, sharper stars. By filtering out just the UV-IR region, you will see that this broadband filter is extremely versatile. You are sure to capture pristine images of Galaxies, Star Clusters, and Reflection nebulae! This filter is not ideal for emission nebulae, you will want to use a dedicated\u003cspan\u003e \u003c\/span\u003e\u003cem data-eapps-font-size=\"16\" data-eapps-line-height=\"24\"\u003enarrowband\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003efilter to isolate individual emission lines. With Optolong, you can expect exceptional performance, allowing urban stargazers the chance to witness vibrant, breathtaking details of the night sky! The Optolong UV\/IR cut filter blocks Ultraviolet and Infrared transmissions but lets the visible spectral region shine through. The IR (700nm to 1100nm) and UV (300nm - 400nm) part of the spectrum are invisible to human eyes, but not to most CCD and other digital cameras, which are sensitive to 300nm to 1100nm. With the Optolong UV-IR Cut filter installed, violet halos and an overall soft image are a thing of the past. This filter also reflects heat radiation and provides great protection against dust. With the ingenuity from Optolong, you can expect exceptional performance, allowing urban stargazers the chance to witness vibrant, breathtaking details of the night sky!\u003c\/p\u003e\n\u003cdiv class=\"hero-img-container three-heros\"\u003e\n\u003cdiv class=\"hero-img\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 data-eapps-font-size=\"24\" data-eapps-line-height=\"36\"\u003eA High Performance Astrophotography Filter of the Utmost Quality\u003c\/h2\u003e\n\u003ch3 data-eapps-font-size=\"18\" data-eapps-line-height=\"27\"\u003eLet's Take a Deeper Look!\u003c\/h3\u003e\n\u003cp data-eapps-font-size=\"16\" data-eapps-line-height=\"24\"\u003eWhat sets one filter apart from another? Which filter is best for me? When developing a filter, manufacturers provide a chart that represents the wavelengths permitted through this filter. This gives insight into the filter’s performance, and what it can help you achieve. So, how exactly do I read a transmission chart? Our team has put together a comprehensive article, to help you understand the fundamentals on\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.highpointscientific.com\/astronomy-hub\/post\/how-tos\/how-to-read-a-filter-transmission-chart-and-choose-a-filter\" data-eapps-font-size=\"16\" data-eapps-line-height=\"24\"\u003eHow to Read a Transmission Chart\u003c\/a\u003e. Check out the article and feel more confident about choosing the right filter for your needs!\u003c\/p\u003e\n\u003cdiv class=\"hero-img-container one-hero\"\u003e\n\u003cdiv class=\"hero-img\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 data-eapps-font-size=\"18\" data-eapps-line-height=\"27\"\u003eImproved Detail, Even from the City\u003c\/h3\u003e\n\u003cp data-eapps-font-size=\"16\" data-eapps-line-height=\"24\"\u003eBy cutting transmissions from Ultraviolet and Infrared, this Optolong filter helps level up your astronomy sessions. Whether utilizing for visual observing or for astrophotography, this high-quality filter helps enhance contrast and reducing star halos on most deep sky objects. Read on as we delve deeper into the incredible features of this Optolong UV-IR Cut Filter!\u003c\/p\u003e\n\u003cdiv class=\"prod-img-container-outer\"\u003e\n\u003cdiv class=\"prod-img-container\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan\u003e \u003c\/span\u003e\n\u003cp data-eapps-font-size=\"16\" data-eapps-line-height=\"24\"\u003e\u003cstrong data-eapps-font-size=\"16\" data-eapps-line-height=\"24\"\u003eSee Clearly!\u003c\/strong\u003e\u003cbr\u003eAs opposed to harsh narrowband filters that cut out an excessive amount of light, this Optolong UV-IR cut filter blocks infrared (700–1100nm) and ultraviolet (300–400nm) wavelengths. While these parts of the spectrum are invisible to the human eye, most CCD and other digital cameras are sensitive to them, ranging from 300nm to 1100nm. Suitable for reflection nebulae, galaxies, and star clusters, this Optolong filter provides a wide variety of imaging opportunities. You will see breathtaking clarity from deep space objects like the Hercules and Pleiades Star Clusters. No matter what you choose to image or observe, the Optolong UV-IR cut filter is a perfect addition to your astrophotography setup!\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"prod-img-container-outer\"\u003e\n\u003cdiv class=\"prod-img-container\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan\u003e \u003c\/span\u003e\n\u003cp data-eapps-font-size=\"16\" data-eapps-line-height=\"24\"\u003e\u003cstrong data-eapps-font-size=\"16\" data-eapps-line-height=\"24\"\u003eEffortless Compatibility\u003c\/strong\u003e\u003cbr\u003eThis Optolong filter is 1.25” in diameter, providing consistent, edge-to-edge illumination across smaller camera sensors or 1.25” eyepieces. It’s housed within a thin metal filter cell and has a clear aperture of 26mm for seamless integration into your 1.25\" filter wheel, or a direct connection to your eyepiece. This design offers ease of installation while providing a secure, and stable fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"prod-img-container-outer\"\u003e\n\u003cdiv class=\"prod-img-container\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan\u003e \u003c\/span\u003e\n\u003cp data-eapps-font-size=\"16\" data-eapps-line-height=\"24\"\u003e\u003cstrong data-eapps-font-size=\"16\" data-eapps-line-height=\"24\"\u003ePremium Construction\u003c\/strong\u003e\u003cbr\u003eComposed of Schott B260 substrate from Germany and featuring multiple layers of anti-reflection, non-cementing coatings, this Optolong UV-IR cut offers outstanding performance. These coatings are applied via electron-beam gun evaporation with Ion-assisted deposition, providing high transmission at the major nebula emission lines while efficiently blocking off-band wavelengths. The high surface quality of 60\/40 ensures pristine views and images, while the CNC machined, all-metal filter cell provides exceptional durability. The surface of this filter cell is black anodized and includes laser engraving to prevent fading. \u003c\/p\u003e\n\u003ch5 data-eapps-font-size=\"16\" data-eapps-line-height=\"24\"\u003eSpecifications\u003c\/h5\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table table--scope-row\" role=\"table\" tabindex=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr role=\"row\"\u003e\n\u003cth scope=\"row\" role=\"rowheader\"\u003e\n\u003cdiv class=\"table__heading-wrapper\"\u003eModel Number\u003c\/div\u003e\n\u003c\/th\u003e\n\u003ctd class=\"data\" data-th=\"Model Number\" role=\"gridcell\"\u003eUVIR-125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr role=\"row\"\u003e\n\u003cth scope=\"row\" role=\"rowheader\"\u003e\n\u003cdiv class=\"table__heading-wrapper\"\u003eSingle Filter, Set, or Accessory\u003c\/div\u003e\n\u003c\/th\u003e\n\u003ctd class=\"data\" data-th=\"Single Filter, Set, or Accessory\" role=\"gridcell\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr role=\"row\"\u003e\n\u003cth scope=\"row\" role=\"rowheader\"\u003e\n\u003cdiv class=\"table__heading-wrapper\"\u003eFilter Type\u003c\/div\u003e\n\u003c\/th\u003e\n\u003ctd class=\"data\" data-th=\"Filter Type\" role=\"gridcell\"\u003eUV\/IR\/Luminance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr role=\"row\"\u003e\n\u003cth scope=\"row\" role=\"rowheader\"\u003e\n\u003cdiv class=\"table__heading-wrapper\"\u003eFilter Size\u003c\/div\u003e\n\u003c\/th\u003e\n\u003ctd class=\"data\" data-th=\"Filter Size\" role=\"gridcell\"\u003e31.75mm (1.25\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr role=\"row\"\u003e\n\u003cth scope=\"row\" role=\"rowheader\"\u003e\n\u003cdiv class=\"table__heading-wrapper\"\u003eFilter Shape\u003c\/div\u003e\n\u003c\/th\u003e\n\u003ctd class=\"data\" data-th=\"Filter Shape\" role=\"gridcell\"\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr role=\"row\"\u003e\n\u003cth scope=\"row\" role=\"rowheader\"\u003e\n\u003cdiv class=\"table__heading-wrapper\"\u003eFilter Insert Style\u003c\/div\u003e\n\u003c\/th\u003e\n\u003ctd class=\"data\" data-th=\"Filter Insert Style\" role=\"gridcell\"\u003eThreaded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Optolong","offers":[{"title":"Default Title","offer_id":49163840356611,"sku":"U2607-MS-UVIR2","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/b044171c-c1d3-4ea2-a004-ab6de29c128a.jpg?v=1783123315","url":"https:\/\/milehighastro.com\/products\/used-optolong-uv-ir-cut-2-mounted-filter","provider":"Mile High Astronomy","version":"1.0","type":"link"}