{"id":29932,"date":"2022-03-08T12:38:41","date_gmt":"2022-03-08T11:38:41","guid":{"rendered":"https:\/\/www.ganymedes.nl\/?post_type=product&p=29932"},"modified":"2025-08-15T12:21:55","modified_gmt":"2025-08-15T10:21:55","slug":"optolong-sho-3nm-2-inch-filterset","status":"publish","type":"product","link":"https:\/\/dev4-ganymedes.nl\/en\/product\/optolong-sho-3nm-2-inch-filterset\/","title":{"rendered":"Optolong SHO 3nm 2 inch filterset"},"content":{"rendered":"

Smalband filterset SHO 3nm voor astrofotografie<\/h2>\n

De Optolong SHO 3nm 2 inch filterset bevat SII 3nm, H-Alpha 3nm en OIII 3nm smalband filters die hoofdzakelijk worden gebruikt met astronomische monochrome camera’s<\/a> en aangepaste DSLR-camera’s. De 2 inch filters zijn voorzien van schroefdraad en dus mounted, terwijl de 36 mm filters unmounted zijn uitgevoerd.<\/p>\n

Het extra smalband SII 3nm filter<\/span> is ontworpen voor het observeren van nevels en passeert een bandbreedte van 3nm gecentreerd op een golflengte van 672nm.<\/p>\n

Het extra smalband H-Alpha 3nm filter<\/span> is een populair smalbandfilter dat een bandbreedte van 3nm doorlaat bij een golflengte van 656nm. Betere keuze van smalband H-Alpha astrofotografie filter voor het hoogste contrast en om fijne neveldetails te detecteren.<\/p>\n

Het extra smalband OIII CCD 3nm filter<\/span> heeft een bandbreedte van 3nm, gecentreerd op een golflengte van 500nm, wat overeenkomt met de OIII emissielijn. OIII zendt 495,9nm en 500,7nm uit en is een blauwgroen kleurenfilter. Veel opnamen van bijvoorbeeld planetaire nevels en supernovaresten zijn gemaakt met alleen H-alpha en OIII filters. Ze tonen veel structurele details, maar hebben natuurlijke kleuren en zien eruit als een RGB-afbeelding.<\/p>\n

Halo’s in OIII<\/h3>\n

Zoals algemeen bekend, is een OIII smalbandfilter altijd een probleem geweest in het aspect van halo’s. Met de ervaring van het 7nm smalband filter, is de halo van het OIII 3nm filter geoptimaliseerd door de coatingtechnologie te optimaliseren. Daaruit volgt dat Optolong ook een kwalitatieve halo test heeft uitgevoerd in de heldere ster van de sluiernevel. Om die reden is op de originele foto te zien dat OIII 3nm beter presteert in de heldere ster.<\/p>\n

\"Optolong
Foto van Optolong site. Copyright Wuzhen<\/figcaption><\/figure>\n

 <\/p>\n

\"Doorgelaten
Doorgelaten wavelenghts van de Optolong SHO 3nm 2 inch filterset<\/figcaption><\/figure>\n

Hoe de grafiek te lezen:<\/h3>\n
    \n
  • Horizontale as is de golflengte in nanometers (nm).<\/li>\n
  • Verticale as is de transmissie in %.<\/li>\n
  • De blauwe lijn toont de transmissie van OIII 3nm. De H-Alpha 3nm lijn wordt weergegeven in het groen. Als laatst wordt de SII 3nm filterlijn in het rood weergegeven.<\/li>\n<\/ul>\n

    De filters blokkeren op betrouwbare wijze bepaalde golflengten van licht. In het bijzonder degene welke worden geproduceerd door kunstlicht. Voorbeelden hiervan zijn: kwikdamp en hoge- en lagedruknatriumlampen evenals ongewenst natuurlijk licht veroorzaakt door neutrale zuurstofemissie in onze atmosfeer.<\/p>\n

    Levering van de Optolong SHO 3nm 2 inch filterset omvat:<\/h3>\n
      \n
    • SII filter 3nm 2 inch mounted<\/li>\n
    • H-Alpha filter 3nm 2 inch mounted<\/li>\n
    • O-III filter 3nm 2 inch mounted<\/li>\n
    • 1 plastic bewaardoos<\/li>\n<\/ul>\n

       <\/p>\n","protected":false},"excerpt":{"rendered":"

      De Optolong SHO 3nm filterset bevat SII 3nm, H-Alpha 3nm en OIII 3nm smalband filters, die over het algemeen optimaal werken met gekoelde monochroom camera’s.<\/p>\n","protected":false},"featured_media":29928,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_vp_format_video_url":"","_vp_image_focal_point":[],"_vp_custom_popup_image":0,"_vp_format_audio_url":"","_vp_custom_thumbnail":0,"_vp_custom_thumbnail_focal_point":[],"_vp_hover_thumbnail":0,"_vp_hover_thumbnail_focal_point":[]},"product_brand":[],"product_cat":[267,274,342,394],"product_tag":[],"class_list":{"0":"post-29932","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-astrophotography-en","7":"product_cat-astrophotography-filters-en","8":"product_cat-brands-en","9":"product_cat-brands-optolong-en","10":"pa_maat-2-inch-en","12":"first","13":"outofstock","14":"taxable","15":"shipping-taxable","16":"purchasable","17":"product-type-simple"},"acf":[],"yoast_head":"\nOptolong SHO 3nm 2 inch filterset - Ganymedes<\/title>\n<meta name=\"description\" content=\"Optolong SHO 3nm 2 inch filterset mounted. 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