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Reducer / Corrector 0.77x for Spirit 150ED

Reducer / Corrector 0.77x for Spirit 150ED

SKU:skywatcher-SW0462

Prix habituel €355,00 EUR
Prix habituel Prix promotionnel €355,00 EUR
En promotion Épuisé
Taxes incluses. Frais d'expédition calculés à l'étape de paiement.

Kas leidsite kusagil odavamalt? Võtke meiega ühendust!

Espirit 150ED apochromatic refractor owners can now image with a reduced focal length. Although the nominal f/7 focal ratio is not excessive, it is always appreciated to be able to reduce exposure times or increase the signal-to-noise ratio (the focal ratio then becomes f/5.4).

Characteristics

  • Resulting focal ratio (with Esprit 150ED): f/5.4
  • Number of lenses: 3 (Fully Multi Coated FMC treatment)
  • Backfocus: 55mm
  • Corrected image circle (for APS-C): 34mm
  • Female threading for 2" filter: Included
  • Threading (camera side): M48x0.75
  • Threading (telescope side): M74x1
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