{"id":7297,"date":"2025-04-26T19:42:03","date_gmt":"2025-04-26T17:42:03","guid":{"rendered":"https:\/\/deep-space-astronomy.ch\/?post_type=product&#038;p=7297"},"modified":"2025-09-17T15:41:33","modified_gmt":"2025-09-17T13:41:33","slug":"filtres-photometriques-antlia-sloan-griz-4-pieces","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/filtres-photometriques-antlia-sloan-griz-4-pieces\/","title":{"rendered":"Photometric filters Antlia SLOAN (g'r'i'z') - 4 pieces"},"content":{"rendered":"<h3 style=\"text-align: center;\">Antlia Photometric Sloan filters<\/h3>\n<p>Antlia Photometric Sloan filters are designed for high-precision photometric imaging, based on the Sloan Digital Sky Survey (SDSS) photometric system. This set of filters covers a wide spectral range from 401nm to the sensitivity limit of silicon CCD cameras (~1100nm). Each filter is optimized for maximum transmission and superior contrast, thanks to exceptional OD5 density optical suppression.<img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-7298 aligncenter\" style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';\" src=\"https:\/\/deep-space-astronomy.ch\/wp-content\/uploads\/2025\/04\/2022-Antlia-Photometric-Sloan-Filters-spectrum-curve.jpg\" alt=\"\" width=\"1112\" height=\"733\" srcset=\"https:\/\/deep-space-astronomy.ch\/wp-content\/uploads\/2025\/04\/2022-Antlia-Photometric-Sloan-Filters-spectrum-curve.jpg 1112w, https:\/\/deep-space-astronomy.ch\/wp-content\/uploads\/2025\/04\/2022-Antlia-Photometric-Sloan-Filters-spectrum-curve-300x198.jpg 300w, https:\/\/deep-space-astronomy.ch\/wp-content\/uploads\/2025\/04\/2022-Antlia-Photometric-Sloan-Filters-spectrum-curve-1024x675.jpg 1024w, https:\/\/deep-space-astronomy.ch\/wp-content\/uploads\/2025\/04\/2022-Antlia-Photometric-Sloan-Filters-spectrum-curve-768x506.jpg 768w, https:\/\/deep-space-astronomy.ch\/wp-content\/uploads\/2025\/04\/2022-Antlia-Photometric-Sloan-Filters-spectrum-curve-18x12.jpg 18w, https:\/\/deep-space-astronomy.ch\/wp-content\/uploads\/2025\/04\/2022-Antlia-Photometric-Sloan-Filters-spectrum-curve-600x396.jpg 600w\" sizes=\"(max-width: 1112px) 100vw, 1112px\" \/><\/p>\n<h3>Key features<\/h3>\n<ul>\n<li>Ion gun assisted deposition coating on double-sided polished substrate<\/li>\n<li>Full-spectrum suppression of light leakage with OD5<\/li>\n<li>Optimized separation between g\u2019 and r\u2019 filters to avoid atmospheric glow line at 558nm<\/li>\n<li>Wide transmission windows enable measurement of weaker objects in less time<\/li>\n<li>Compatible with optical systems from f\/15 to f\/1.8<\/li>\n<li>Maximum transmission greater than 98% (g\u2019 greater than 95%)<\/li>\n<li>Standardized filter thicknesses for consistent fragrance<\/li>\n<li>Each filter is individually coated (not cut from a plate)<\/li>\n<\/ul>\n<h3>Application and performance<\/h3>\n<ul>\n<li>Professional astronomical photometry<\/li>\n<li>Observation of weak targets with reduced exposure time<\/li>\n<li>Scientific imaging requiring precise spectral separation<\/li>\n<\/ul>\n<h3>Technical specifications<\/h3>\n<ul>\n<li>g\u2019: 401-550nm, transmission 95%, suppression \u2265OD5<\/li>\n<li>r\u2019: 562-695nm, transmission 98%, suppression \u2265OD5<\/li>\n<li>i\u2019: 695-844nm, transmission 98%, suppression \u2265OD5<\/li>\n<li>z\u2019: &gt;820nm, transmission 98%, suppression \u2265OD5<\/li>\n<li>Thickness: 3mm \u00b1 0.05mm (D50mm format)<\/li>\n<li>Optical surface: \u03bb\/4 before coating<\/li>\n<\/ul>\n<h3>Important note<\/h3>\n<ul>\n<li>Due to the poor quantum efficiency of ultraviolet sensors, Antlia does not produce the u\u2019 filter (300-400nm).<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Filtres Antlia Photometric Sloan Les filtres Antlia Photometric Sloan sont con\u00e7us pour l&rsquo;imagerie photom\u00e9trique de haute pr\u00e9cision, bas\u00e9s sur le syst\u00e8me photom\u00e9trique du Sloan Digital Sky Survey (SDSS). Ce jeu de filtres couvre une large gamme spectrale allant de 401nm jusqu&rsquo;\u00e0 la limite de sensibilit\u00e9 des cam\u00e9ras CCD en silicium (~1100nm). Chaque filtre est optimis\u00e9 [&hellip;]<\/p>\n","protected":false},"featured_media":7299,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[791],"product_cat":[780,805],"product_tag":[],"class_list":["post-7297","product","type-product","status-publish","has-post-thumbnail","product_brand-antlia","product_cat-filtres-bande-etroite","product_cat-filtres-photometriques","first","on_supplier","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/7297","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/comments?post=7297"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/7299"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=7297"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=7297"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=7297"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=7297"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}