{"product_id":"baader-planetarium-rgb-filter-set-cmos-optimized","title":"Baader Planetarium RGB Filter Set – CMOS-optimized","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eSet of three Red, Green, and Blue (RGB) filters\u003c\/li\u003e\n\u003cli\u003eOptimized for modern CMOS sensors to eliminate reflections\u003c\/li\u003e\n\u003cli\u003eAvailable in 1.25\" \u0026amp; 2\" mounted, 31\/36\/50.4mm round unmounted and 50x50\/65x65mm square sizes\u003c\/li\u003e\n\u003cli\u003eEnables full-color imaging with monochrome astronomy cameras\u003c\/li\u003e\n\u003cli\u003eAnti-reflective coatings maximize light transmission\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eRGB Filter Set – CMOS-optimized\u003c\/h2\u003e\n      \u003cp\u003eThis Baader Planetarium RGB Filter Set is engineered specifically for modern monochrome CMOS cameras, addressing the unique reflection challenges they present. By capturing separate images through the red, green, and blue filters, you can assemble a full-color astrophoto with deep, rich data. This set is the foundation for creating high-resolution color images of galaxies, nebulae, and star clusters, with optical coatings designed to prevent the halos and internal reflections that can compromise images from newer, highly-reflective sensors. It is offered as 1.25\" and 2\" mounted filters, as 31mm, 36mm and 50.4mm round unmounted filters, and as 50x50mm and 65x65mm square filters for large-format cameras.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eThe \"CMOS-Optimized\" Advantage for Modern Sensors\u003c\/h3\u003e\n      \u003cp\u003eModern CMOS sensors feature a multi-layer construction with microlenses and cover glass that is highly reflective to off-axis light. Standard filters can create strong internal reflections between the filter surface and the sensor, resulting in halos around bright stars. This CMOS-optimized RGB set uses advanced anti-reflection coatings and carefully designed passbands to eliminate these artifacts, ensuring clean, high-contrast images even with fast optical systems.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eHigh-Transmission RGB Channels for Accurate Color\u003c\/h3\u003e\n      \u003cp\u003eThe goal of LRGB imaging is to produce a final image with natural, vibrant color. These filters are designed to deliver high transmission within their respective red, green, and blue passbands while maintaining sharp cutoffs to minimize overlap between the channels. This results in distinct color channels that are easier to balance during processing, saving you time and producing a more scientifically accurate and aesthetically pleasing final image.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eCMOS-Optimized RGB vs. Traditional CCD Filters\u003c\/h3\u003e\n      \u003cp\u003eWhile older filters designed for CCD sensors produce excellent results with those cameras, they often struggle with newer CMOS technology. The primary difference lies in how they handle reflections.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eTraditional CCD Filters:\u003c\/strong\u003e Assumed a less reflective sensor surface. When paired with a CMOS sensor, they can produce noticeable halos and internal reflections, particularly in fast f-ratio telescopes.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBaader CMOS-Optimized Filters:\u003c\/strong\u003e Incorporate coatings and design principles that actively suppress reflections between the filter and the sensor. This makes them essential for imagers using popular CMOS cameras to achieve the cleanest possible raw data, free from artifacts that are difficult to remove in post-processing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes this Baader RGB Filter Set \"CMOS-optimized\"?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThese filters are designated \u003cstrong\u003e\"CMOS-optimized\"\u003c\/strong\u003e because their anti-reflection coatings are specifically designed to prevent halos and internal reflections caused by the highly reflective cover glass and microlens arrays on modern CMOS sensors. This results in cleaner images with higher contrast, especially around bright stars.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this RGB Filter Set with a color camera?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this filter set is designed for use with \u003cstrong\u003emonochrome (black and white) astronomy cameras\u003c\/strong\u003e. A color camera already has a red, green, and blue filter matrix (a Bayer or X-Trans array) built into the sensor itself. Using these external filters with a color camera would be redundant and severely impact color balance and efficiency.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow would I use this Baader RGB set to image the Andromeda Galaxy (M31) with a monochrome camera?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eTo image the Andromeda Galaxy (M31), you would mount the Baader RGB filters in a filter wheel or drawer that accepts the size you have chosen. You would then capture a series of individual exposures through each filter sequentially (e.g., 20 exposures with the Red, 20 with the Green, 20 with the Blue). In processing software, these three separate black-and-white image stacks are assigned to the R, G, and B channels to create a single full-color image.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eAre these filters suitable for fast telescopes, like an f\/4 Newtonian?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, in fact, fast optical systems are where CMOS-optimized filters show their greatest advantage. The steep light cone from a fast telescope (like an f\/4 Newtonian or f\/2 RASA) exacerbates reflection problems. The advanced coatings on this Baader RGB set are designed to maintain high performance and prevent halos even at these challenging focal ratios. With fast optics and larger sensors, also choose a large enough filter size: 36mm or 2\" filters help prevent vignetting on APS-C sensors, while the 50.4mm round and 50x50mm or 65x65mm square formats are intended for full-frame and larger sensors.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDo these Baader RGB filters block infrared (IR) and ultraviolet (UV) light?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. A crucial part of any quality RGB filter set is integrated UV\/IR blocking. This ensures that only the visible light spectrum is recorded, which is critical for sharp focus (as IR\/UV light focuses at a different point) and accurate color rendition, especially in refractive optics like refractors or Schmidt-Cassegrains.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs there a correct order to put the Baader RGB filters in a filter wheel?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThere is no single \"correct\" order; it's a matter of personal workflow. Many imagers place them in chromatic order (Red, Green, Blue) to make sequencing logical. If you are also using a Luminance filter, a common arrangement is L-R-G-B, allowing you to cycle through the color filters easily after capturing the primary luminance data.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ch3\u003e1.25\" Round Mounted\u003c\/h3\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eRGB (Red, Green, Blue) Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eThreaded Cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eAnti-Reflection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV\/IR Blocking\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Compatibility\u003c\/td\u003e\n\u003ctd\u003eOptimized for Monochrome CMOS Sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e2\" Round Mounted\u003c\/h3\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eRGB (Red, Green, Blue) Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e2-Inch, Mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eCMOS Sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e31mm Round Unmounted Filter\u003c\/h3\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eRGB (Red, Green, Blue) Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e31mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNIR Suppression\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Compatibility\u003c\/td\u003e\n\u003ctd\u003eOptimized for Monochrome CMOS Sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e36mm Round Unmounted Filter\u003c\/h3\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eRGB (Red, Green, Blue) Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e36mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eCMOS-Optimized Anti-Reflection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Compatibility\u003c\/td\u003e\n\u003ctd\u003eOptimized for Monochrome CMOS Sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e50.4mm Round Unmounted Filter\u003c\/h3\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eLRGB Filter Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilters Included\u003c\/td\u003e\n\u003ctd\u003eRed, Green, Blue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e50.4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Optimization\u003c\/td\u003e\n\u003ctd\u003eCMOS Sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e50x50mm Square Filter\u003c\/h3\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eRGB (Red, Green, Blue) Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFormat\u003c\/td\u003e\n\u003ctd\u003e50x50mm Square, Unmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Compatibility\u003c\/td\u003e\n\u003ctd\u003eOptimized for Monochrome CMOS Sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e65x65mm Square Filter\u003c\/h3\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eRGB (Red, Green, Blue) Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFormat\u003c\/td\u003e\n\u003ctd\u003e65x65mm Square, Unmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eAnti-Reflection on Both Surfaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Compatibility\u003c\/td\u003e\n\u003ctd\u003eOptimized for Monochrome CMOS Sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Filter_Problems_FAQ_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"1.25\" Round Mounted","offer_id":52913202495773,"sku":"BAA-2961600","price":333.0,"currency_code":"USD","in_stock":true},{"title":"2\" Round Mounted","offer_id":52913202528541,"sku":"BAA-2961603","price":503.0,"currency_code":"USD","in_stock":true},{"title":"31mm Round Unmounted Filter","offer_id":52913202561309,"sku":"BAA-2961601","price":369.0,"currency_code":"USD","in_stock":true},{"title":"36mm Round Unmounted Filter","offer_id":52913202594077,"sku":"BAA-2961602","price":403.0,"currency_code":"USD","in_stock":true},{"title":"50.4mm Round Unmounted Filter","offer_id":52913202626845,"sku":"BAA-2961604","price":604.0,"currency_code":"USD","in_stock":true},{"title":"50x50mm Square Filter","offer_id":52913202659613,"sku":"BAA-2961605","price":638.0,"currency_code":"USD","in_stock":true},{"title":"65x65mm Square Filter","offer_id":52913202692381,"sku":"BAA-2961606","price":907.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/BaaderPlanetarium-RGB-Filter-Set-1-CMOS-optimized-1_8e6ee76d-b912-4a4f-92ff-9d8d7d803de2.jpg?v=1789088028","url":"https:\/\/davidastro.com\/fr-us\/products\/baader-planetarium-rgb-filter-set-cmos-optimized","provider":"David Astro","version":"1.0","type":"link"}