Askar FRA 500 Quintuplet APO Astrograph (FRA500) finderscope When added to optical glass

When added to optical glass

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25” Schmidt-Cassegrain and 9

but AstroSolar must show slight ripples

Askar FRA 500 Quintuplet APO Astrograph (FRA500) finderscope When added to optical glassSharpstar Optics introduces Askar FRA500 astrograph, which is the youngest among the FRA family well known to our customers. Compared with its siblings, the 500mm focal length refractor has an aperture size of 90mm (f 5. 6), so Askar FRA500 can better fit into the scenarios of deep sky imaging than the Askar FRA400. Besides, it is more lightweight and compact than Askar FRA600, which makes it a great choice for out door observation or