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ʻO ka Lunt LS60THa he telescope solar h-alpha piha. Loaʻa i ka ʻōnaehana refractor kahi lens chromatic singlelet me kahi puka 60 mm. ʻO ka lens singlet mua e hōʻemi i ka hapalua o ke kukui hele ʻole o kahi achromat, e hoʻopau piha ana i ka hiki o ka coma on-axis, astigmatism, de-centering aberrations, a hāʻawi, me ka ...
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