{"title":"Antlia LRGB Filters","description":"\u003cp\u003eExplore Antlia lrgb filters at Dark Clear Skies.\u003c\/p\u003e","products":[{"product_id":"antlia-lrgb-v-series-pro-filters-1-25-for-astrophotography","title":"Antlia LRGB V-series PRO Filters - 1.25\" for Astrophotography","description":"\u003ch1 class=\"title page-title\"\u003eAntlia LRGB V-series PRO Filters - Mounted in 1.25\" Filter Cell (31.8mm)\u003c\/h1\u003e\n\u003cp\u003eThe Antlia LRGB V-series PRO Filters series filters are designed for monochrome cameras that use both CCD and CMOS sensors. Suitable sensors include KAF\/KAI, Sony, GSENSE and other sensor manufacturers. This filter set is designed to approximately equalize the RGB response from monochrome sensors . The result is that you achieve 1:1:1 equalized RGB exposures with the benefit of simplified post processing and reduced dark frame library.\u003cbr\u003eThe Antlia LRGB V-series PRO Filters  highlight both the spectral gap design between green and red filters to minimize effect of light pollution and high transmittance of useful emission lines which means it remains effective for weaker emission lines from galaxies and nebulae. The V-series filters guarantee the high transmission of the OIII band in both the B and G filters (OIII signal \u0026gt;95% in blue and green).\u003cbr\u003eThe bandwidth of the B channel is narrowed for the purpose of effectively improving the blue overflow around the star due to B channel overexposure when RGB is synthesized.\u003cbr\u003eThe Antlia LRGB V-series PRO Filters  block the emission line around 589nm, which suppresses much of the light pollution from high pressure sodium and mercury street lamps and results in a more natural colour balance. The uniformity in substrate thickness delivers good parfocal performance across all of its narrowband filters.\u003c\/p\u003e\n\u003ch3\u003eAntlia LRGB V-series PRO Filters  Application and Performance:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAntlia LRGB V-series PRO Filters Designed for monochrome CCD and CMOS cameras;\u003c\/li\u003e\n\u003cli\u003eGreat imaging colours for celestial objects, galaxies, star clusters and nebulae;\u003c\/li\u003e\n\u003cli\u003eTransmittance rate＞95%, high optical throughput;\u003c\/li\u003e\n\u003cli\u003e2 sides AR coating, significant reflection and star halo reduction;\u003c\/li\u003e\n\u003cli\u003eRGB colour combine 1:1:1, resulting in well balanced RGB and LRGB images;\u003c\/li\u003e\n\u003cli\u003eEqual RGB exposures means one master dark frame;\u003c\/li\u003e\n\u003cli\u003eParfocal across all filters in this set;\u003c\/li\u003e\n\u003cli\u003eAntlia LRGB V-series PRO Filters Improved colour separation with suppression of mercury and sodium lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/LRGB-V_Spectrum_Curve.webp\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/LRGB-V_Spectrum_Curve.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eAntlia LRGB V-series PRO Filters Technical Data:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSchott optical substrate\u003c\/li\u003e\n\u003cli\u003e1.25”, 2” mounted, 31mm,36mm dia (2mm+\/-0.05mm)\u003c\/li\u003e\n\u003cli\u003e50mm dia，50*50mm，65*65mm square (3mm+\/-0.05mm)\u003c\/li\u003e\n\u003cli\u003eSurface Quality: 60\/40 (Refer to MIL-O-13830)\u003c\/li\u003e\n\u003cli\u003eBoth sides fine-optically polished to ensure accurate 1\/4 wavefront\u003c\/li\u003e\n\u003cli\u003e30 arcsec parallelism\u003c\/li\u003e\n\u003cli\u003eTave＞95%\u003c\/li\u003e\n\u003cli\u003eOD3（0.1%）@ 300-1050nm\u003c\/li\u003e\n\u003cli\u003eMulti-layer anti-reflection coating\u003c\/li\u003e\n\u003cli\u003eSingle Non-glued substrate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAntlia LRGB V-series PRO Filters Filter Cell (specifications for cell mounted filters only):\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1.25” (M28.5*0.6)，2” (M48*0.75)\u003c\/li\u003e\n\u003cli\u003eUltra-thin filter cell to minimize vignetting by maximized possible clear aperture\u003c\/li\u003e\n\u003cli\u003eBlack Anodized Finish\u003c\/li\u003e\n\u003cli\u003eNon-Fading Laser Engraving\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSizes：\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMounted： 1.25” \u0026amp; 2” (2mm thickness)\u003c\/li\u003e\n\u003cli\u003eUnmounted：Dia 31mm，Dia 36mm (2mm thickness)\u003c\/li\u003e\n\u003cli\u003eUnmounted：Dia 50mm (3mm thickness)\u003c\/li\u003e\n\u003cli\u003eUnmounted：50*50*3mm，65*65*3mm square (3mm thickness)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cbr\u003eNot recommended:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSolar Observing and imaging\u003c\/li\u003e\n\u003cli\u003eVisual observation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eIMPORTANT!\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eDO NOT LOOK AT THE SUN WITH ANTLIA FILTERS.\u003cbr\u003eSerious eye damage will result if you fail to observe the warning.\u003c\/p\u003e\n\u003ch3\u003eIn the box:\u003c\/h3\u003e\n\u003cp\u003eSet includes Luminance ( IR\/UV blocked colourless), Red, Green and Blue filters\u003c\/p\u003e","brand":"Antlia","offers":[{"title":"Default Title","offer_id":42278686458033,"sku":"ANT-LRGB-V-1.25-PRO","price":314.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/antlia-lrgb-v-series-pro-astronomy-imaging-filters-125-921183.webp?v=1782294593"},{"product_id":"antlia-lrgb-v-series-pro-filter-31mm","title":"Antlia LRGB V-series PRO Filter 31mm","description":"\u003ch1\u003eAntlia LRGB V-series PRO Filter 31mm - 31mm Unmounted (glass only)\u003c\/h1\u003e\n\u003cp\u003eThe Antlia LRGB V-series PRO Filter 31mm series filters are designed for monochrome cameras that use both CCD and CMOS sensors. Suitable sensors include KAF\/KAI, Sony, GSENSE and other sensor manufacturers. This filter set is designed to approximately equalize the RGB response from monochrome sensors . The result is that you achieve 1:1:1 equalized RGB exposures with the benefit of simplified post processing and reduced dark frame library.\u003cbr\u003eThe Antlia LRGB V-series PRO Filter 31mm highlight both the spectral gap design between green and red filters to minimize effect of light pollution and high transmittance of useful emission lines which means it remains effective for weaker emission lines from galaxies and nebulae. The V-series filters guarantee the high transmission of the OIII band in both the B and G filters (OIII signal \u0026gt;95% in blue and green).\u003cbr\u003eThe bandwidth of the B channel is narrowed for the purpose of effectively improving the blue overflow around the star due to B channel overexposure when RGB is synthesized.\u003cbr\u003eThe Antlia V-series filters block the emission line around 589nm, which suppresses much of the light pollution from high pressure sodium and mercury street lamps and results in a more natural colour balance. The uniformity in substrate thickness delivers good parfocal performance across all of its narrowband filters.\u003c\/p\u003e\n\u003ch3\u003eAntlia LRGB V-series PRO Filter 31mm Application and Performance:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAntlia LRGB V-series PRO Filter 31mm Designed for monochrome CCD and CMOS cameras;\u003c\/li\u003e\n\u003cli\u003eGreat imaging colours for celestial objects, galaxies, star clusters and nebulae;\u003c\/li\u003e\n\u003cli\u003eTransmittance rate＞95%, high optical throughput;\u003c\/li\u003e\n\u003cli\u003e2 sides AR coating, significant reflection and star halo reduction;\u003c\/li\u003e\n\u003cli\u003eRGB colour combine 1:1:1, resulting in well balanced RGB and LRGB images;\u003c\/li\u003e\n\u003cli\u003eEqual RGB exposures means one master dark frame;\u003c\/li\u003e\n\u003cli\u003eParfocal across all filters in this set;\u003c\/li\u003e\n\u003cli\u003eImproved colour separation with suppression of mercury and sodium lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/LRGB-V_Spectrum_Curve.webp\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/LRGB-V_Spectrum_Curve.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eAntlia LRGB V-series PRO Filter 31mm Technical Data:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSchott optical substrate\u003c\/li\u003e\n\u003cli\u003e1.25”, 2” mounted, 31mm,36mm diameter (2mm+\/-0.05mm)\u003c\/li\u003e\n\u003cli\u003e50mm dia，50*50mm，65*65mm square (3mm+\/-0.05mm)\u003c\/li\u003e\n\u003cli\u003eSurface Quality: 60\/40 (Refer to MIL-O-13830)\u003c\/li\u003e\n\u003cli\u003eBoth sides fine-optically polished to ensure accurate 1\/4 wave front\u003c\/li\u003e\n\u003cli\u003e30 arcsec parallelism\u003c\/li\u003e\n\u003cli\u003eTave＞95%\u003c\/li\u003e\n\u003cli\u003eOD3（0.1%）@ 300-1050nm\u003c\/li\u003e\n\u003cli\u003eMulti-layer anti-reflection coating\u003c\/li\u003e\n\u003cli\u003eSingle Non-glued substrate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAntlia LRGB V-series PRO Filter 31mm Filter Cell (specifications for cell mounted filters only):\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAntlia LRGB V-series PRO Filter 31mm\u003c\/li\u003e\n\u003cli\u003eUltra-thin filter cell to minimize vignetting by maximized possible clear aperture\u003c\/li\u003e\n\u003cli\u003eBlack Anodized Finish\u003c\/li\u003e\n\u003cli\u003eNon-Fading Laser Engraving\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSizes：\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMounted： 1.25” \u0026amp; 2” (2mm thickness)\u003c\/li\u003e\n\u003cli\u003eUnmounted Diameter 31mm，Dia 36mm (2mm thickness)\u003c\/li\u003e\n\u003cli\u003eUnmounted：Dia 50mm (3mm thickness)\u003c\/li\u003e\n\u003cli\u003eUnmounted：50*50*3mm，65*65*3mm square (3mm thickness)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cbr\u003eNot recommended:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSolar Observing and imaging\u003c\/li\u003e\n\u003cli\u003eVisual observation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eIMPORTANT!\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eDO NOT LOOK AT THE SUN WITH ANTLIA FILTERS.\u003cbr\u003eSerious eye damage will result if you fail to observe the warning.\u003c\/p\u003e\n\u003ch3\u003eAntlia LRGB V-series PRO Filter 31mm In the box:\u003c\/h3\u003e\n\u003cp\u003eSet includes Luminance ( IR\/UV blocked colourless), Red, Green and Blue filters\u003c\/p\u003e","brand":"Antlia","offers":[{"title":"Default Title","offer_id":42278692782257,"sku":"ANT-LRGB-V-31-PRO","price":335.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/antlia-lrgb-v-series-pro-astronomy-imaging-filters-31mm-unmounted-780242.webp?v=1782294599"},{"product_id":"antlia-lrgb-v-series-pro-filter-36mm","title":"Antlia LRGB V-series PRO Filter 36mm","description":"\u003ch1\u003eAntlia LRGB V-series PRO Filter 36mm - 36mm Unmounted (glass only)\u003c\/h1\u003e\n\n\u003cp\u003eThe Antlia LRGB V-series PRO Filter 36mms are designed for monochrome cameras that use both CCD and CMOS sensors. Suitable sensors include KAF\/KAI, Sony, GSENSE and other sensor manufacturers. This filter set is designed to approximately equalize the RGB response from monochrome sensors . The result is that you achieve 1:1:1 equalized RGB exposures with the benefit of simplified post processing and reduced dark frame library.\u003cbr\u003e\nThe Antlia LRGB V-series PRO Filter 36mm highlight both the spectral gap design between green and red filters to minimize effect of light pollution and high transmittance of useful emission lines which means it remains effective for weaker emission lines from galaxies and nebulae. The V-series filters guarantee the high transmission of the OIII band in both the B and G filters (OIII signal \u0026gt;95% in blue and green).\u003cbr\u003e\nThe bandwidth of the B channel is narrowed for the purpose of effectively improving the blue overflow around the star due to B channel overexposure when RGB is synthesized.\u003cbr\u003e\nThe Antlia V-series filters block the emission line around 589nm, which suppresses much of the light pollution from high pressure sodium and mercury street lamps and results in a more natural color balance. The uniformity in substrate thickness delivers good parfocal performance across all of its narrowband filters.\u003c\/p\u003e\n\n\u003ch3\u003eAntlia LRGB V-series PRO Filter 36mm Application and Performance:\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eAntlia LRGB V-series PRO Filter 36mm Designed for monochrome CCD and CMOS cameras;\u003c\/li\u003e\n\t\u003cli\u003eGreat imaging colours for celestial objects, galaxies, star clusters and nebulae;\u003c\/li\u003e\n\t\u003cli\u003eTransmittance rate＞95%, high optical throughput;\u003c\/li\u003e\n\t\u003cli\u003e2 sides AR coating, significant reflection and star halo reduction;\u003c\/li\u003e\n\t\u003cli\u003eRGB colour combine 1:1:1, resulting in well balanced RGB and LRGB images;\u003c\/li\u003e\n\t\u003cli\u003eEqual RGB exposures means one master dark frame;\u003c\/li\u003e\n\t\u003cli\u003eParfocal across all filters in this set;\u003c\/li\u003e\n\t\u003cli\u003eAntlia LRGB V-series PRO Filter 36mm Improved colour separation with suppression of mercury and sodium lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/LRGB-V_Spectrum_Curve.webp\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/LRGB-V_Spectrum_Curve.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch3\u003eAntlia LRGB V-series PRO Filter 36mm Technical Data:\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eSchott optical substrate\u003c\/li\u003e\n\t\u003cli\u003e1.25”, 2” mounted, 31mm,36mm diameter (2mm+\/-0.05mm)\u003c\/li\u003e\n\t\u003cli\u003e50mm dia，50*50mm，65*65mm square (3mm+\/-0.05mm)\u003c\/li\u003e\n\t\u003cli\u003eSurface Quality: 60\/40 (Refer to MIL-O-13830)\u003c\/li\u003e\n\t\u003cli\u003eBoth sides fine-optically polished to ensure accurate 1\/4 wave front\u003c\/li\u003e\n\t\u003cli\u003e30 arcsec parallelism\u003c\/li\u003e\n\t\u003cli\u003eTave＞95%\u003c\/li\u003e\n\t\u003cli\u003eOD3（0.1%）@ 300-1050nm\u003c\/li\u003e\n\t\u003cli\u003eMulti-layer anti-reflection coating\u003c\/li\u003e\n\t\u003cli\u003eSingle Non-glued substrate\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAntlia LRGB V-series PRO Filter 36mm Filter Cell (specifications for cell mounted filters only):\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e1.25” (M28.5*0.6)，2” (M48*0.75)\u003c\/li\u003e\n\t\u003cli\u003eUltra-thin filter cell to minimize vignetting by maximized possible clear aperture\u003c\/li\u003e\n\t\u003cli\u003eBlack Anodized Finish\u003c\/li\u003e\n\t\u003cli\u003eNon-Fading Laser Engraving\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSizes：\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eMounted： 1.25” \u0026amp; 2” (2mm thickness)\u003c\/li\u003e\n\t\u003cli\u003eUnmounted: Diameter  31mm，Dia 36mm (2mm thickness)\u003c\/li\u003e\n\t\u003cli\u003eUnmounted: Diameter 50mm (3mm thickness)\u003c\/li\u003e\n\t\u003cli\u003eUnmounted：50*50*3mm，65*65*3mm square (3mm thickness)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\n\u003cbr\u003e\nNot recommended:\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eSolar Observing and imaging\u003c\/li\u003e\n\t\u003cli\u003eVisual observation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cspan\u003eIMPORTANT!\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eDO NOT LOOK AT THE SUN WITH ANTLIA FILTERS.\u003cbr\u003e\nSerious eye damage will result if you fail to observe the warning.\u003c\/p\u003e\n\n\u003ch3\u003eAntlia LRGB V-series PRO Filter 36mm In the box:\u003c\/h3\u003e\n\n\u003cp\u003eSet includes Luminance ( IR\/UV blocked colourless), Red, Green and Blue filters\u003c\/p\u003e","brand":"Antlia","offers":[{"title":"Default Title","offer_id":42278699434161,"sku":"ANT-LRGB-V-36-PRO","price":377.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/antlia-lrgb-v-series-pro-astronomy-imaging-filters-36mm-unmounted-781938.webp?v=1782294602"},{"product_id":"antlia-lrgb-v-series-pro-filter-2-for-precision-astrophotography","title":"Antlia LRGB V-series PRO Filter 2\" for Precision Astrophotography","description":"\u003ch1\u003eAntlia LRGB V-series PRO Filter 2\" - Mounted in 2\" Filter Cell (50.8mm)\u003c\/h1\u003e\n\n\u003cp\u003eThe Antlia LRGB V-series PRO Filter 2\"are designed for monochrome cameras that use both CCD and CMOS sensors. Suitable sensors include KAF\/KAI, Sony, GSENSE and other sensor manufacturers. This filter set is designed to approximately equalize the RGB response from monochrome sensors . The result is that you achieve 1:1:1 equalized RGB exposures with the benefit of simplified post processing and reduced dark frame library.\u003cbr\u003e\nThe Antlia LRGB V-series PRO Filter 2\" highlight both the spectral gap design between green and red filters to minimize effect of light pollution and high transmittance of useful emission lines which means it remains effective for weaker emission lines from galaxies and nebulae. The V-series filters guarantee the high transmission of the OIII band in both the B and G filters (OIII signal \u0026gt;95% in blue and green).\u003cbr\u003e\nThe bandwidth of the B channel is narrowed for the purpose of effectively improving the blue overflow around the star due to B channel overexposure when RGB is synthesized.\u003cbr\u003e\nThe Antlia V-series filters block the emission line around 589nm, which suppresses much of the light pollution from high pressure sodium and mercury street lamps and results in a more natural colour balance. The uniformity in substrate thickness delivers good parfocal performance across all of its narrowband filters.\u003c\/p\u003e\n\n\u003ch3\u003eAntlia LRGB V-series PRO Filter 2\" Application and Performance:\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eAntlia LRGB V-series PRO Filter 2\"Designed for monochrome CCD and CMOS cameras;\u003c\/li\u003e\n\t\u003cli\u003eGreat imaging colours for celestial objects, galaxies, star clusters and nebulae;\u003c\/li\u003e\n\t\u003cli\u003eTransmittance rate＞95%, high optical throughput;\u003c\/li\u003e\n\t\u003cli\u003e2 sides AR coating, significant reflection and star halo reduction;\u003c\/li\u003e\n\t\u003cli\u003eRGB colour combine 1:1:1, resulting in well balanced RGB and LRGB images;\u003c\/li\u003e\n\t\u003cli\u003eEqual RGB exposures means one master dark frame;\u003c\/li\u003e\n\t\u003cli\u003eParfocal across all filters in this set;\u003c\/li\u003e\n\t\u003cli\u003eAntlia LRGB V-series PRO Filter 2\" has Improved colour separation with suppression of mercury and sodium lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/LRGB-V_Spectrum_Curve.webp\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/LRGB-V_Spectrum_Curve.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch3\u003eAntlia LRGB V-series PRO Filter 2\" Technical Data:\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eSchott optical substrate\u003c\/li\u003e\n\t\u003cli\u003e1.25”, 2” mounted, 31mm,36mm diameter (2mm+\/-0.05mm)\u003c\/li\u003e\n\t\u003cli\u003e50mm dia，50*50mm，65*65mm square (3mm+\/-0.05mm)\u003c\/li\u003e\n\t\u003cli\u003eSurface Quality: 60\/40 (Refer to MIL-O-13830)\u003c\/li\u003e\n\t\u003cli\u003eBoth sides fine-optically polished to ensure accurate 1\/4 wave front\u003c\/li\u003e\n\t\u003cli\u003e30 arcsec parallelism\u003c\/li\u003e\n\t\u003cli\u003eTave＞95%\u003c\/li\u003e\n\t\u003cli\u003eOD3（0.1%）@ 300-1050nm\u003c\/li\u003e\n\t\u003cli\u003eMulti-layer anti-reflection coating\u003c\/li\u003e\n\t\u003cli\u003eSingle Non-glued substrate\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAntlia LRGB V-series PRO Filter 2\" Filter Cell (specifications for cell mounted filters only):\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e1.25” (M28.5*0.6)，2” (M48*0.75)\u003c\/li\u003e\n\t\u003cli\u003eUltra-thin filter cell to minimize vignetting by maximized possible clear aperture\u003c\/li\u003e\n\t\u003cli\u003eBlack Anodized Finish\u003c\/li\u003e\n\t\u003cli\u003eNon-Fading Laser Engraving\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSizes：\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eMounted： 1.25” \u0026amp; 2” (2mm thickness)\u003c\/li\u003e\n\t\u003cli\u003eUnmounted：Dia 31mm，Dia 36mm (2mm thickness)\u003c\/li\u003e\n\t\u003cli\u003eUnmounted：Dia 50mm (3mm thickness)\u003c\/li\u003e\n\t\u003cli\u003eUnmounted：50*50*3mm，65*65*3mm square (3mm thickness)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\n\u003cbr\u003e\nNot recommended:\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eSolar Observing and imaging\u003c\/li\u003e\n\t\u003cli\u003eVisual observation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cspan\u003eIMPORTANT!\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eDO NOT LOOK AT THE SUN WITH ANTLIA FILTERS.\u003cbr\u003e\nSerious eye damage will result if you fail to observe the warning.\u003c\/p\u003e\n\n\u003ch3\u003eAntlia LRGB V-series PRO Filter 2\" : In the box:\u003c\/h3\u003e\n\n\u003cp\u003eSet includes Luminance ( IR\/UV blocked colourless), Red, Green and Blue filters\u003c\/p\u003e","brand":"Antlia","offers":[{"title":"Default Title","offer_id":42278705922225,"sku":"ANT-LRGB-V-2-PRO","price":459.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/antlia-lrgb-v-series-pro-astronomy-imaging-filters-2-580197.webp?v=1782294596"},{"product_id":"antlia-lrgb-v-series-pro-filter-50mm","title":"Antlia LRGB V-series PRO Filter 50mm","description":"\u003ch1\u003eAntlia LRGB V-series PRO Filter 50mm - 50mm Unmounted (glass only)\u003c\/h1\u003e\n\u003cp\u003eThe Antlia LRGB V-series PRO Filter 50mm are designed for monochrome cameras that use both CCD and CMOS sensors. Suitable sensors include KAF\/KAI, Sony, GSENSE and other sensor manufacturers. This filter set is designed to approximately equalize the RGB response from monochrome sensors . The result is that you achieve 1:1:1 equalized RGB exposures with the benefit of simplified post processing and reduced dark frame library.\u003cbr\u003eThe Antlia LRGB V-series PRO Filter 50mm highlight both the spectral gap design between green and red filters to minimize effect of light pollution and high transmittance of useful emission lines which means it remains effective for weaker emission lines from galaxies and nebulae. The V-series filters guarantee the high transmission of the OIII band in both the B and G filters (OIII signal \u0026gt;95% in blue and green).\u003cbr\u003eThe bandwidth of the B channel is narrowed for the purpose of effectively improving the blue overflow around the star due to B channel overexposure when RGB is synthesized.\u003cbr\u003eThe Antlia LRGB V-series PRO Filter 50mm block the emission line around 589nm, which suppresses much of the light pollution from high pressure sodium and mercury street lamps and results in a more natural colour balance. The uniformity in substrate thickness delivers good parfocal performance across all of its narrowband filters.\u003c\/p\u003e\n\u003ch3\u003eAntlia LRGB V-series PRO Filter 50mm Application and Performance:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAntlia LRGB V-series PRO Filter 50mm Designed for monochrome CCD and CMOS cameras;\u003c\/li\u003e\n\u003cli\u003eGreat imaging colours for celestial objects, galaxies, star clusters and nebulae;\u003c\/li\u003e\n\u003cli\u003eTransmittance rate＞95%, high optical throughput;\u003c\/li\u003e\n\u003cli\u003e2 sides AR coating, significant reflection and star halo reduction;\u003c\/li\u003e\n\u003cli\u003eRGB colour combine 1:1:1, resulting in well balanced RGB and LRGB images;\u003c\/li\u003e\n\u003cli\u003eEqual RGB exposures means one master dark frame;\u003c\/li\u003e\n\u003cli\u003eParfocal across all filters in this set;\u003c\/li\u003e\n\u003cli\u003eImproved colour separation with suppression of mercury and sodium lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/LRGB-V_Spectrum_Curve.webp\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/LRGB-V_Spectrum_Curve.webp\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eAntlia LRGB V-series PRO Filter 50mm Technical Data:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSchott optical substrate\u003c\/li\u003e\n\u003cli\u003e1.25”, 2” mounted, 31mm,36mm diameter (2mm+\/-0.05mm)\u003c\/li\u003e\n\u003cli\u003e50mm dia，50*50mm，65*65mm square (3mm+\/-0.05mm)\u003c\/li\u003e\n\u003cli\u003eSurface Quality: 60\/40 (Refer to MIL-O-13830)\u003c\/li\u003e\n\u003cli\u003eBoth sides fine-optically polished to ensure accurate 1\/4 wave front\u003c\/li\u003e\n\u003cli\u003e30 arcsec parallelism\u003c\/li\u003e\n\u003cli\u003eTave＞95%\u003c\/li\u003e\n\u003cli\u003eOD3（0.1%）@ 300-1050nm\u003c\/li\u003e\n\u003cli\u003eMulti-layer anti-reflection coating\u003c\/li\u003e\n\u003cli\u003eSingle Non-glued substrate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAntlia LRGB V-series PRO Filter 50mm Filter Cell (specifications for cell mounted filters only):\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1.25” (M28.5*0.6)，2” (M48*0.75)\u003c\/li\u003e\n\u003cli\u003eUltra-thin filter cell to minimize vignetting by maximized possible clear aperture\u003c\/li\u003e\n\u003cli\u003eBlack Anodized Finish\u003c\/li\u003e\n\u003cli\u003eNon-Fading Laser Engraving\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSizes：\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMounted： 1.25” \u0026amp; 2” (2mm thickness)\u003c\/li\u003e\n\u003cli\u003eUnmounted: Diameter  31mm，Dia 36mm (2mm thickness)\u003c\/li\u003e\n\u003cli\u003eUnmounted: Diameter 50mm (3mm thickness)\u003c\/li\u003e\n\u003cli\u003eUnmounted：50*50*3mm，65*65*3mm square (3mm thickness)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cbr\u003eNot recommended:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSolar Observing and imaging\u003c\/li\u003e\n\u003cli\u003eVisual observation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eIMPORTANT!\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eDO NOT LOOK AT THE SUN WITH ANTLIA FILTERS.\u003cbr\u003eSerious eye damage will result if you fail to observe the warning.\u003c\/p\u003e\n\u003ch3\u003eAntlia LRGB V-series PRO Filter 50mm In the box:\u003c\/h3\u003e\n\u003cp\u003eSet includes Luminance ( IR\/UV blocked colourless), Red, Green and Blue filters\u003c\/p\u003e","brand":"Antlia","offers":[{"title":"Default Title","offer_id":42282572251313,"sku":"ANT-LRGB-V-50-PRO","price":628.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/antlia-lrgb-v-series-pro-astronomy-imaging-filters-50mm-unmounted-825581.webp?v=1782294605"}],"url":"https:\/\/www.darkclearskies.co.uk\/collections\/antlia-lrgb-filters.oembed","provider":"Dark Clear Skies ","version":"1.0","type":"link"}