ASKAR FRA600 F/5.6 APO REFRACTOR Tool 75 SKU AX-M42-1

SKU: 91823391967

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ASKAR FRA600 F/5.6 APO REFRACTOR Tool 75 SKU AX-M42-1The Askar FRA 600 f 5. 6 is a professional apochromatic Petzval quintuplet refractor with an aperture of 108mm and a corrected field of 66mm in diameter. The lenses are assembled in two groups: an air spaced triplet on the front and a correcting doublet towards the rear. The objective lens includes two Extra Low Dispersion glass elements for a superb chromatic correction. Differently from standard ED refractors, the Askar 600 features a Petzval design

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