View Single Post
  #15  
Old 10-04-2017, 06:34 PM
LewisM's Avatar
LewisM
Novichok test rabbit

LewisM is offline
 
Join Date: Aug 2012
Location: Somewhere in the cosmos...
Posts: 10,389
Quote:
Originally Posted by Slawomir View Post
Adding a solid extension tube (4-5cm long) in front of the flattener (on the telescope side) would give you some room for a manoeuvre and you would not need to fully extend the focuser. Having the focuser fully extended is not ideal because it increases chances of a tilt due to focuser sagging.
EXCELLENT advice re using a spacer tube instead of using the drawtube (why SW made it come to focus that far out is anyone's guess) - this leaves you the option of having drawtube travel still. Make the spacer shorter than required, so you can accommodate extra and intra-focal adjustment
Reply With Quote