{"title":"Filtres iOptron","description":"\u003cp\u003eLes filtres iOptron sont des filtres 1.25\" pour l'imagerie et l'observation visuelle avec de petits télescopes et caméras. La série en bande étroite comprend des filtres H-alpha, OIII et SII qui isolent les raies d'émission des nébuleuses et coupent la pollution lumineuse, pour des images couleur en palette Hubble.\u003c\/p\u003e\u003cp\u003eUn kit de filtres LRGB couvre l'imagerie couleur large bande avec une caméra mono, et un filtre lunaire vert réduit l'éblouissement de la Lune et améliore le contraste à l'oculaire.\u003c\/p\u003e","products":[{"product_id":"ioptron-3383-lrgb","title":"iOptron LRGB Imaging Filter Kit - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eComplete LRGB Filter Set\u003c\/li\u003e\n\u003cli\u003eIncludes Luminance, Red, Green, and Blue Filters\u003c\/li\u003e\n\u003cli\u003eStandard 1.25\" Filter Size\u003c\/li\u003e\n\u003cli\u003eThreaded for Standard Filter Wheels and Accessories\u003c\/li\u003e\n\u003cli\u003eEnables Full-Color Imaging with Monochrome Cameras\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\u003eiOptron LRGB Imaging Filter Kit - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe iOptron LRGB Imaging Filter Kit provides the four essential filters—Luminance, Red, Green, and Blue—required for full-color astrophotography with a monochrome camera. Mounted in standard 1.25\" cells, this 4-filter set allows you to capture high-resolution detail and vibrant color data separately for maximum processing control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe 4-Filter LRGB Method for High-Resolution Color\u003c\/h3\u003e\n\u003cp\u003eThis 4-filter set is the foundation of high-resolution color astrophotography. By using a monochrome camera, you can capture a detailed, high-signal Luminance (L) layer through the clear filter, then gather the color information separately through the Red (R), Green (G), and Blue (B) filters. This method ensures that the full resolution of your sensor is dedicated to each channel, resulting in sharper final images compared to one-shot-color cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eStandard 1.25\" Format for Maximum Compatibility\u003c\/h3\u003e\n\u003cp\u003eEach filter in the iOptron LRGB kit is mounted in a standard 1.25\" threaded cell. This universal format ensures compatibility with the vast majority of electronic and manual filter wheels, especially those used with cameras featuring APS-C or smaller sensors. The threaded design allows for secure installation, preventing tilt and ensuring a consistent focal plane between filter changes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eLRGB vs. One-Shot-Color (OSC): Control Over Your Data\u003c\/h3\u003e\n\u003cp\u003eWhile one-shot-color (OSC) cameras offer a simpler workflow, the LRGB filter method provides superior control over your final image. You can allocate different exposure times for each channel—for example, longer on the Luminance for detail, and adjusted times on the RGB channels to perfect color balance. This separation also allows for more advanced processing techniques, such as using the L-channel to enhance sharpness without affecting color saturation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the iOptron LRGB Imaging Filter Kit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe iOptron LRGB Imaging Filter Kit is designed for astrophotographers using \u003cstrong\u003emonochrome cameras\u003c\/strong\u003e. It allows you to create full-color images by capturing four separate sets of data: one for brightness (Luminance) and one for each of the primary colors (Red, Green, Blue), which are then combined during image processing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a filter wheel to use the iOptron 1.25\" LRGB filters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile you can manually unscrew and swap filters between exposures, it is highly inconvenient and risks moving the telescope. A \u003cstrong\u003efilter wheel\u003c\/strong\u003e is strongly recommended to use the iOptron LRGB kit efficiently, as it allows you to switch between the four filters remotely without touching the imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the iOptron LRGB filters for visual observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this filter set is designed specifically for \u003cstrong\u003eimaging\u003c\/strong\u003e. While colored filters are used visually for enhancing planetary contrast, this LRGB set is designed to isolate specific color bands for a camera sensor to reconstruct a color image and is not suitable for direct visual use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does imaging with the iOptron LRGB Filter Kit compare to using a color camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eImaging with the iOptron LRGB kit and a monochrome camera generally yields \u003cstrong\u003esharper images with better detail\u003c\/strong\u003e. This is because the camera's full sensor resolution is used for each color channel. A one-shot-color camera uses a permanent filter matrix that dedicates only a fraction of its pixels to each color, sacrificing some resolution for convenience.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow would I use the iOptron LRGB Filter Kit to image the Andromeda Galaxy (M31) with an 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor a galaxy like M31, you would spend the majority of your imaging time on the \u003cstrong\u003eLuminance filter\u003c\/strong\u003e to capture faint dust lanes and structural details. You would then capture shorter total exposures through the Red, Green, and Blue filters to record the color of the core and star-forming regions. The L-channel data is later used to sharpen the combined RGB color data.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eFor a target like the Orion Nebula (M42), would I need different exposure times for each filter in the iOptron LRGB Kit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Most monochrome sensors have different sensitivities to red, green, and blue light. For a target like M42, you would typically need to expose longer through the \u003cstrong\u003eRed and Blue filters\u003c\/strong\u003e than the Green filter to achieve a balanced color signal. The Luminance filter would also require its own specific exposure time to capture the faint outer nebulosity without blowing out the bright core.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Code\u003c\/td\u003e\n\u003ctd\u003e3383-LRGB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eLRGB (Luminance, Red, Green, Blue)\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\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003eSet of 4 Filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eLuminance Filter (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eRed Filter (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eGreen Filter (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBlue Filter (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eProtective Storage Case\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/ioptron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eiOptron 1-Year Accessory Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":52917291385117,"sku":"IOP-3383-LRGB","price":307.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-LRGB-Imaging-Filter-Kit-1-25-1_10aa64fb-8356-42fb-be0a-1b17d2bf2bc9.jpg?v=1789142050"},{"product_id":"ioptron-tfe100","title":"iOptron Green Moon Filter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eEnhances contrast on lunar and planetary features\u003c\/li\u003e\n\u003cli\u003eReduces glare for more comfortable viewing\u003c\/li\u003e\n\u003cli\u003eImproves detail in Martian polar caps and dust storms\u003c\/li\u003e\n\u003cli\u003eHighlights cloud structures on Jupiter and Saturn\u003c\/li\u003e\n\u003cli\u003eThreads into standard astronomy eyepieces and accessories\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\u003eGreen Moon Filter\u003c\/h2\u003e\n\u003cp\u003eThe Green Moon Filter is a fundamental tool for visual observers seeking to increase contrast and reduce glare when viewing bright celestial objects. By selectively passing green light, this filter darkens the sky background and enhances specific surface and atmospheric details on the Moon and planets that are often washed out by unfiltered light. It provides a significant improvement in observable detail, making it an essential accessory for any eyepiece collection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eEnhancing Lunar Detail: From Bright Maria to Subtle Rilles\u003c\/h3\u003e\n\u003cp\u003eWhen observing the Moon, especially during its brighter phases, overwhelming glare can flatten the view and hide subtle features. The Green Moon Filter dims the image to a more comfortable level while dramatically increasing the contrast between lunar features with different albedos (reflectivity). It excels at separating bright ejecta rays from the surrounding terrain and defining the boundaries of dark maria and the floors of craters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePlanetary Observation: Isolating Features on Mars, Jupiter, and Venus\u003c\/h3\u003e\n\u003cp\u003eBeyond the Moon, the Green Moon Filter is a versatile planetary accessory. On Mars, it improves the visibility of the polar ice caps and highlights surface frost and high-altitude clouds. For Jupiter and Saturn, it boosts the contrast of their atmospheric belts and zones. It's particularly effective at making the Great Red Spot on Jupiter stand out more clearly and can even help in discerning the faint cloud patterns on Venus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eGreen vs. Neutral Density: Choosing the Right Filter for the Moon\u003c\/h3\u003e\n\u003cp\u003eObservers often choose between a green filter and a standard neutral density (ND) or \"Moon\" filter. While both reduce brightness, they serve different purposes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeutral Density Filter:\u003c\/strong\u003e This filter reduces brightness uniformly across the entire visual spectrum, like sunglasses for your telescope. It provides a natural color view and is purely for glare reduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreen Moon Filter:\u003c\/strong\u003e This filter provides targeted contrast enhancement by transmitting only a specific portion of the spectrum. While it also reduces glare, its primary function is to make specific red and blue-toned features appear darker, thereby increasing the visibility of subtle details. For detailed study, the green filter is often the superior choice.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the Green Moon Filter do to the view of the Moon?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Green Moon Filter increases contrast and reduces overall glare. This makes it easier to see fine details like crater walls, rilles, and the subtle textures of the lunar maria. It gives the Moon a green tint but makes surface features stand out more distinctly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Green Moon Filter useful for planets?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is highly effective for several planets. It helps to distinguish the polar caps and dust storms on \u003cstrong\u003eMars\u003c\/strong\u003e, enhances the visibility of the cloud belts and Great Red Spot on \u003cstrong\u003eJupiter\u003c\/strong\u003e, and can reveal faint patterns in the thick atmosphere of \u003cstrong\u003eVenus\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Green Moon Filter improve views of Mars?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen observing Mars, the Green Moon Filter is excellent for increasing the contrast of the white polar ice caps against the planet's reddish surface. It also helps in identifying high-altitude atmospheric hazes and localized dust storms, which can be difficult to see without filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Green Moon Filter to see cloud bands on Jupiter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The Green Moon Filter enhances the boundaries between Jupiter's reddish-brown belts and its lighter zones. It is particularly useful for making the Great Red Spot (GRS) appear more defined and can help resolve smaller, transient storms within the Jovian atmosphere.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Green Moon Filter make the image dimmer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, all color filters reduce the total amount of light reaching your eye. This dimming effect is beneficial as it reduces glare on bright objects like the Moon and planets, making extended observation more comfortable and revealing more detail.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow is a Green Moon Filter different from a variable polarizing filter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA \u003cstrong\u003eGreen Moon Filter\u003c\/strong\u003e enhances contrast by selectively transmitting green light, which helps specific features stand out. A \u003cstrong\u003evariable polarizing filter\u003c\/strong\u003e is a type of neutral density filter that allows you to adjust the brightness from about 1% to 40% transmission without altering color. The polarizer is for controlling glare, while the green filter is for boosting contrast.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eColored Glass Filter - Green\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Use\u003c\/td\u003e\n\u003ctd\u003eLunar \u0026amp; Planetary Visual Observing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eGreen Moon Filter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eProtective Case\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNo downloads are available for this product.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWarranty information for this product is not available.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":52917295448349,"sku":"IOP-TFE100","price":20.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-Green-Moon-Filter-1_232402bc-a3c5-4efc-a5d5-fd5c6c38b7bc.jpg?v=1789142198"}],"url":"https:\/\/davidastro.com\/fr\/collections\/ioptron-filters.oembed","provider":"David Astro","version":"1.0","type":"link"}