View Single Post
  #3  
Old 20-04-2020, 10:53 AM
JA
.....

JA is offline
 
Join Date: Oct 2016
Location: Melbourne, Australia
Posts: 3,052
Quote:
Originally Posted by multiweb View Post
Hi guys, would you have recommendations on a low profile 2" (or more) focuser that would fit within a 40mm to 50mm gap (all inclusive of threads). Travel doesn't have to be much. I'm interested in compactness and stifness. TIA.
Hi Marc,

If you want to go to an astrocam on one end of the focuser, especially one with an M42 x 1mm thread, perhaps you could try an M42 Helicoid focuser, which is typically M42 male at one end and M42 female at the other end; however, and it may suit you, other threads are also available.

As an example....
https://www.ebay.com.au/itm/Brass-M4...UAAOSwFSxZ5wux

That is a 17-31mm extension, but you will find shorter and longer examples.

Best
JA
Reply With Quote