Askar FRA 500 Quintuplet APO Astrograph (FRA500) finderscope reference NexYZ Tension Adjustment Guide

reference NexYZ Tension Adjustment Guide under Support & Downloads

55lbs Field Stop 29

Designed to be used with any telescope with a 2” focuser

but AstroSolar must show slight ripples

Upgrade your existing star diagonal to this premium one and enjoy brighter

Askar FRA 500 Quintuplet APO Astrograph (FRA500) finderscope reference NexYZ Tension Adjustment GuideSharpstar 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