I often use an F/3.5 Newt photographically, and my "secret", if there is one, is to put a little 1/16" hole exactly opposite the focuser (need to remove the secondary to put the laser on it) to square-on the focuser first, then replace the secondary to align the spot on the primary, then align the primary to return the beam to the focuser... -Dean > > > >> Date: Mon, 1 Feb 2010 17:04:19 -0700 >> Subject: [AZ-Observing] Collimation Consensus >> From: 24launch@xxxxxxxxx >> To: az-observing@xxxxxxxxxxxxx >> >> I'm sure this has been asked a million times before and I don't mean >> to spark a big debate, but what are everyone's feelings on properly >> collimating a Newt reflector (ie: 10")? Including the secondary >> mirror? >> > >> >> Are the laser ones more accurate or just faster/easier? >> > > > _________________________________________________________________ > Hotmail: Free, trusted and rich email service. > http://clk.atdmt.com/GBL/go/201469228/direct/01/ > -- > See message header for info on list archives or unsubscribing, and please > send personal replies to the author, not the list. -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.