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Star Test results (1 Viewer)

greg g

Well-known member
I used the adivice given on the forum and used the Star Test on a new scope. I hung a Christmas ornament 100' from the scope.(It was 100' because I set the scope up at 2nd base and hung the ornament up 10' beyond 3rd base). The ornament was set at scope height. I put the Swarovski ATS 80HD with the 20-60x eye piece at maximum power. Focused on the sun's reflection. After the scope was focused I turned inside-focus and the view results were one outer bright ring with 5 or 6 rings of equal light inside and they all appeared circular. After the scope refocused I turned to outside-focus and the view results were one outer bright ring with the interior rings blotchy and non-distinct. When the outside focus was turned more the circle of light just became a circular blur.
Did I perform the Star Test correctly?
Can this be corrected, and if so is there anything I can do?
Should I exchange this scope for another scope?
Should I keep this scope and have the scope corrected by the manufacturer?
 
greg g said:
I used the adivice given on the forum and used the Star Test on a new scope. I hung a Christmas ornament 100' from the scope.(It was 100' because I set the scope up at 2nd base and hung the ornament up 10' beyond 3rd base). The ornament was set at scope height. I put the Swarovski ATS 80HD with the 20-60x eye piece at maximum power. Focused on the sun's reflection. After the scope was focused I turned inside-focus and the view results were one outer bright ring with 5 or 6 rings of equal light inside and they all appeared circular. After the scope refocused I turned to outside-focus and the view results were one outer bright ring with the interior rings blotchy and non-distinct. When the outside focus was turned more the circle of light just became a circular blur.
Did I perform the Star Test correctly?
Can this be corrected, and if so is there anything I can do?
Should I exchange this scope for another scope?
Should I keep this scope and have the scope corrected by the manufacturer?
if you surf the asto sites on the net [ ref star testing [refractor] scopes ] it will tell you what rings a refractor should show inside and outside of focus. from memory [ long while ago] sounds wrong.
 
Last edited:
Hi Stuart,Greg also posted this under Swarovski spotters and there is a reply by Henry Link.In case you miss it.:)
Regards,Steve
 
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