Thread: Collimation
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Old 18-04-2020, 04:06 PM
rrussell1962
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rrussell1962 is offline
 
Join Date: May 2014
Location: Brisbane
Posts: 494
If I am making out the crosshairs correctly in the Cheshire / sight tube in the first photo they do not seem to be hitting the centre spot. Also the photos with the laser show the outgoing beam not hitting the centre of the primary spot and the return beam not lining up with the outgoing beam which indicates the primary is not aligned correctly. If the secondary, with the Cheshire / sight tube appears circular and in the centre of the focuser tube just adjust the mirrors, secondary first. I actually find a Cheshire better for adjusting the primary but use a laser for the secondary.
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