{"id":9673,"date":"2025-08-11T12:12:52","date_gmt":"2025-08-11T10:12:52","guid":{"rendered":"https:\/\/deep-space-astronomy.ch\/?post_type=product&p=9673"},"modified":"2025-09-01T09:08:00","modified_gmt":"2025-09-01T07:08:00","slug":"player-one-s-series-sho-7-nm","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/player-one-s-series-sho-7-nm\/","title":{"rendered":"Player One S-Series SHO 7 nm filters"},"content":{"rendered":"
\n

Player One S-Series H\u03b1 \/ S II \/ O III 7 nm narrowband filter set - Format 1.25\u2033<\/h3>\n

Visit narrowband filter set Player One S-Series SHO 7 nm<\/strong>\u00a0combines the three essential filters for monochrome astrophotography: H\u03b1 (Hydrogen-alpha)<\/strong>, S II (Sulfur-II)<\/strong> and O III (Oxygen-III)<\/strong>. Designed with high-quality optical substrate<\/strong> and a multi-layer composite coating technology<\/strong>These filters offer high transmission, excellent out-of-band cut-off and optimal halo control, guaranteeing sharp, high-contrast images even on faint objects.<\/p>\n

With a half-value width (FWHM) of 7 nm \u00b1 0.5 nm<\/strong>These lenses precisely isolate the wavelengths required, while effectively blocking light pollution and spurious emissions. Ideal for imaging deep-sky nebulae, this set delivers fine detail and a richly nuanced Hubble palette (SHO).<\/p>\n

Technical specifications<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n
Type<\/th>\nH\u03b1, S II, O III narrowband filters<\/td>\n<\/tr>\n
Format<\/th>\n1,25\u2033 (M28,5 \u00d7 0,6)<\/td>\n<\/tr>\n
FWHM<\/th>\n7 nm \u00b1 0.5 nm<\/td>\n<\/tr>\n
Glass thickness<\/th>\n2.0 mm \u00b1 0.03 mm<\/td>\n<\/tr>\n
Transmission<\/th>\n\u2248 90 %<\/td>\n<\/tr>\n
Surface accuracy<\/th>\n\u03bb\/4 on each side<\/td>\n<\/tr>\n
Locking depth<\/th>\nOD3 (out-of-band transmission < 0.1 %)<\/td>\n<\/tr>\n
IR cut-off<\/th>\n700-1100 nm<\/td>\n<\/tr>\n
Frame<\/th>\nTotal thickness 7.5 mm (body 5 mm + thread 2.5 mm)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Highlights<\/h3>\n
    \n
  • High optical performance<\/strong> High-quality optical glass and multi-coating for maximum contrast.<\/li>\n
  • High transmission (~90 %)<\/strong> : effectively captures H\u03b1, S II and O III emissions for fine detail.<\/li>\n
  • Optimum blocking<\/strong> OD3 out-of-band cut-off and IR cut-off to avoid spectral contamination.<\/li>\n
  • Halo control<\/strong> Artifact reduction around bright stars.<\/li>\n
  • FWHM 7 nm<\/strong> The ideal compromise between rejecting light pollution and capturing weak signals.<\/li>\n
  • Universal compatibility<\/strong> M28.5 \u00d7 0.6 thread for all standard 1.25\u2033 filter holders and drawers.<\/li>\n<\/ul>\n

    Applications<\/h3>\n
      \n
    • Emitting nebulae<\/strong> Precise capture of H\u03b1 (656.3 nm), S II (672.4 nm) and O III (500.7 nm) lines.<\/li>\n
    • SHO imaging (Hubble palette)<\/strong> channel composition for spectacular false-color images.<\/li>\n
    • Reducing light pollution<\/strong> improves contrast even under urban skies.<\/li>\n<\/ul>\n

      SEO keywords<\/h3>\n

      Player One S-Series 1.25\u2033 narrowband filter set, H\u03b1 S II O III 7 nm filters, deep sky astrophotography, Hubble SHO palette, anti-light pollution filters, high transmission, halo control, IR blocking.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

      Set de filtres narrowband Player One S-Series H\u03b1 \/ S II \/ O III 7 nm \u2013 Format 1,25\u2033 Le set de filtres narrowband Player One S-Series SHO 7 nm\u00a0regroupe les trois filtres indispensables en astrophotographie monochrome : H\u03b1 (Hydrog\u00e8ne-alpha), S II (Soufre-II) et O III (Oxyg\u00e8ne-III). Con\u00e7us avec un substrat optique de haute qualit\u00e9 […]<\/p>\n","protected":false},"featured_media":9675,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[556],"product_cat":[780,801],"product_tag":[],"class_list":{"0":"post-9673","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-player-one","7":"product_cat-filtres-bande-etroite","8":"product_cat-filtre-astrophotographie-du-ciel-profond","10":"first","11":"on_supplier","12":"taxable","13":"shipping-taxable","14":"purchasable","15":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/9673","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=9673"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/9675"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=9673"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=9673"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=9673"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=9673"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}