View Single Post
  #13  
Old 23-03-2019, 09:08 AM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 17,902
Quote:
Originally Posted by Slawomir View Post
I have no experience with Esprits, but I would also account for a potential cost of replacing stock focuser, if I was after trouble free reliable and precise focusing with a heavy FW+OAG+camera, to get the most of the optics.
Hi Suavi,

I agree. I had a beautiful TEC110 F5.6 oiled fluourite triplet that I now regret selling. But its focuser was one of the first TEC engineered focusers and it was too light weight and I should have swapped it out for a Feathertouch. But if I screwed everything down tight and supported the end of the scope on the focuser side I got round stars in the corners with the 16803 using the TEC flatteners (TEC flatteners are like Tak - they work).

Greg.
Reply With Quote