Reduktorius / korektoriaus 0,77x skirtas Esprit 120ED

Lithuanian owners of the Esprit 120ED apochromatic refractor can now image with a reduced focal length. Although the nominal f/7 focal ratio is not excessive, it is always appreciable to be able to reduce exposure times or increase the signal-to-noise ratio (the focal ratio then becomes f/5.4).

Caracteristika

• Gauta fokalinio santykis (su Esprit 120ED) : f/5.4
• Lęščių skaičius: 3 (daugiasluokės FMC - visiškai dažyti)
• Atgalinis atstumas: 55mm
• Koreguota vaizdo apskritimas (APS-C): 34mm
• Moteris strypas filtrui 2" : Įtrauktas
• (Strypas teleskopui) : M74x1