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Riduttore/correttore 0,77x per Esprit 150ED

Riduttore/correttore 0,77x per Esprit 150ED

SKU:skywatcher-SW0462

Prezzo di listino €355,00 EUR
Prezzo di listino Prezzo scontato €355,00 EUR
In offerta Esaurito
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Astronomy Store owners of the Esprit 150ED apochromatic refractor can now image with a reduced focal length. Although the nominal f/7 focal ratio is not excessive, it's always appreciable to be able to reduce exposure times or increase 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 (FMC - Fully Multi Coated multi-layer treatment)
  • Backfocus: 55mm
  • Corrected image circle (for APS-C): 34mm
  • Female thread for 2" filter: Included
  • Thread (camera side): M48x0.75
  • Thread (telescope side): M74x1
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