B Cuddihee 1968 Jason Empire 60X700mm refractor 1977 Jason Empire 313 discoveror EQ Celestron Nexstar8SE "The Bumblebee", with Feathertouch Microfocuser, and Celestron CPC Heavy Duty Tripod. Stellarvue 50mm "Sparrowhawk" finder Denk bino's with Power x switch. Pair of Edmund 28 plossls. Pair of Edmund 28 RKE'S Pair of 24mm Brandons. Pair of Smart Astronomy 19 EF's. Pair of 18mm Celestron Ultimas
N11GPS Fastar//TOA-130S//MK66 Std//AT6RC//Vintage C5//Megrez II 80mm APO//SolarMax 40 NJP Temma II//Sirius EQ-G Too Many Astro-Cameras//Mallincam Color Hyper Plus Two not-spoiled Golden Retrievers - Casey and Nelson Lot 19 Deerlick Astronomy Village (Canis Major) Sometimes I think we're alone in the universe, and sometimes I think we're not. In either case the idea is quite staggering. - Arthur C. Clarke
The Hole in the Trees Skybox CPC1100, SXVR-H694, ASI120MM
Imaging automation by Sequence Generator Pro and FireCapture
Quote:For me, it's pretty hard to beat a star...the price is right also. It's a bit of an iterative process that gets tiresome going back and forth between the EP and the corrector to dial in the collimation. I've never tried a collimation tool, but I've heard some say they aren't very effective because of the folded light path of an SCT. Wondering if any CNers out there have a different opinion and would recommend a specific collimation tool that is useful.
David W. Knisely . . . . . . "If you aren't having fun in this hobby, you aren't doing it right." Hyde Memorial Observatory http://www.hydeobservatory.info Prairie Astronomy Club http://www.prairieastronomyclub.org
Quote:I used to recommend a star as the best method but I've found a planet works even better. As you approach focus you'll see the planet's disk surrounded by a fainter disk of the out of focus light. This outer disk should shrink down evenly around the inner brighter disk. If you are off even the slightest you'll see the outer disk shrink down off center. The beauty of this is it works in bad seeing where the shrinking out of focus disk of a star is smeared by turbulence. When seeing is good, its fun to see how collimation effects the visibility of planetary details.I use Bob's knobs too.
Modded C9.25, Vixen SP retrofitted with DS motors and Autostar My pics Stars light the world without, to give us purpose They light us within to give us reason We live in a well-lit abyss.
Brian S. Johnson
All Terrain Z10 http://tinyurl.com/ouxfsyu with refigured primary, 63mm Protostar secondary.
Quote:The Sheer Genius Collimation Device in action.
Quote:Quote:The Sheer Genius Collimation Device in action. Real nice to see others use a thermal blanket,I dont mean to high-jack but all SCT users need to know the benifit of this,or collimation will not be within reach if you do not stabilize tube currents
Quote:I just point the scope at Polaris and a couple of minutes later, the scope is spot-on and ready for use. It is cheap, doesn't need batteries, adapters, or projection screens, and, most importantly, it is never wrong. Clear skies to you.