Achtung:
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Source
Astro Sweden
Last updated
about 16 hours ago
Description
Note:
The item is located abroad. Please note that delivery conditions, shipping times, and/or the purchase process may differ.
Fokalreducerare/field flattener till Evolux-82 ED refraktorteleskopet för astrofotografering. Med fokalreduceraren minskar du teleskopets brännvidd och reducerar på så vis exponeringstiden samt får ett större synfält på himlen.
Minst lika viktigt som exponeringstiden är bildskärpan. Med denna field flattener får du skarpa, punktformade stjärnor ända ut till kanten på ett fält med 30 mm diameter. Med en dubblett design med ED lins undviker du färgfel som annars kan uppstå i enklare field flatteners.
Specifikationer:
Reducering av teleskopets brännvidd: 0,9x. Resulterande brännvidd med Evolux 82ED: 477 mm. Resulterande f-tal med Evolux 82ED: f/5,8. Anslutning på teleskopsidan: M56x1 invändig gänga, passar direkt på Evolux 82ED. Anslutning på kamerasidan: M48x0,75 utvändig gänga. Back fokus (avstånd från flattenern till kamerans sensor): 55 mm
Så ansluter du kameran:
Du behöver en adapter med M48x0,75 invändig gänga på den ena sidan som passar till kameran på den andra sidan. Det totala avståndet från basen på adaptern till kamerans sensor skall vara så nära som möjligt 55 mm. Har du systemkamera kan du exempelvis använda Sky-Watchers M48 kameraadapter till Canon EOS eller Nikon F som automatiskt resulterar i rätt avstånd.
Artikelattribut Exkludera från marknadsföring Nej Varumärke Sky-Watcher Lagerprofil 2
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