View Single Post
  #5  
Old 13-10-2018, 09:15 PM
RyanJones
Registered User

RyanJones is offline
 
Join Date: Jun 2018
Location: Melbourne,Australia
Posts: 1,439
Thank you Raymo, Alex and Karl,

Ok, extension tube it is. I'm assuming this is because of where the exit pupil is ? Is there anyway to work out what this length is or is it a case of as Alex mentioned, racking out the focuser then using a bit of trial and error ?
Reply With Quote