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Old 13-02-2022, 05:23 PM
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mura_gadi (Steve)
SpeakingB4Thinking

mura_gadi is offline
 
Join Date: Apr 2019
Location: Canberra
Posts: 829
try this

https://www.cloudynights.com/topic/6...-newt-rebuild/

FL is measured to focal plane, which includes the 1/2 tube span from the 2ndary mirror and focuser height/focuser plate/tube thickness etc from the tube. The focal plane will sit slightly outside of the focuser, that's where you spend your time trying to get the ep's to sit for focus.

If the mirrors are filthy you may only be magnifying dust at the higher power?

Last edited by mura_gadi; 13-02-2022 at 05:33 PM.
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