4.5", 6", and 10" Newtonian astrographs.
2 ST80s; ED80; 3 CCD cameras; 5 EQ mounts: all polished, tuned, and modified.
The rule of telescope features: aperture; equatorial tracking; or low cost. Pick any two.
We mostly come out at night... mostly.
GSO Z8 Degree Circle & Digital Level
Celestron 4"(102mm) SLT 660mm f/6.47
2" 30mm GSO WideView
9mm GSO Plossl
ES 82's : 4.7mm, 8.8mm, 11mm, 18mm
BGO's 5mm, 6mm, 9mm
2" 2X ED Astronomics Barlow & GSO 1.25" 2x Shorty
8-24 Baader Zoom III
Baader M&SG, Semi-Apo
Quote:Good for you, and thanks for posting this - hopefully it will lead others in the right direction! When one's views aren't so good I think it is all too easy to seek improvement in getting "better" eyepieces. Of course, that route can't possibly lead to good views, as no eyepiece will fix bad collimation. Really, over on the eyepiece forum I think that every time a beginner asks about getting new eyepieces, the first question folks should ask is "Have you collimated?"Do the great views make you want to share them with others? In my experience, local astro clubs are always looking for members to get involved in outreach - schools, scouts, sidewalk, etc. I and some others in our club enjoy them immensely.
Quote:What I find to be a serious roadblock to learning how to collimate a Newt is threads that mention how hard it is to do and the guides that infuse way too much theory and not enough (actually none) easily understood, step by step, simple instructions. Because it is simple and it's not hard to do. Heck, even I sorta learnt how to do it. Kinda.Where's Jon? He should include that in the book he should write.
Quote:For anybody, regardless of how you learn, there has to be that one click/moment-or-clarity where it finally makes sense. If you are just blindly following a list of instructions (without understanding), that moment may not come.
Orion XT8 Classic, Self built EQ platform
AstroTech 72ED, AstroTech 6 Imaging Newt
Celestron Advanced VX EQ Mount
Celestron NexStar SE 4/5 Mount (for grab and go)
Canon T3i, Canon XT (Hap Griffin Baader Mod)
QHY5L-II Mono/Orion 50MM Mini
Fort Bend Astronomy Club
Rob Astronomy compels the soul to look upwards and leads us from this world to another..... Plato
Quote:The inexpensive newtonian reflector is an OUTRAGEOUSLY wonderful and cost effective scientific instrument. But the trade off (and there ALWAYS is a trade off) is that it takes some knowledge and skill to get and keep a newtonian reflector working. Don't want to know or do anything? OK, then one needs to spend a lot more money on a different kind of scope. I think that it is pretty lovely that the universe works this way, as it actually favours (in the long run) those without money.
Antares 12" Dob Stellarvue 10*60 finder Telrad Meade 25mm Plossl, Orion 10mm plossl, Celestron 6mm plossl, Paradigm 18mm,15mm,12mm, 8mm, Knight Owl 20mm, Shorty 2x barlow, Celeston Ultima 2x Catseye Triple Pack Collimation 4.5" Tasco 11TR Frankenscope 60mm Tasco 9TE-5 60mm Tasco 7T Oberwerk 12*60 binos
Mes télescopes et jumelles:
150mm F5 Newt on EQ5, 127mm Mak Cass on AZ4
Oberwerk BT70-45 and 15X70 SkyMasters
Quote:One tip - don't work on your scope such that stuff that you drop will hit the primary mirror. Work with the tube more or less horizontal.
Quote:... but what if someone asks about obtaining perfect collimation with an autocollimator? Well . . . I hope they were serious, because that will elicit a serious response
XT10 classic with premium optics Tri-knob CR2 focuser
Catseye + Glatter collimation tools
StarBlast 4.5" & 6"
Round Table Platform
Quote:Does the beginner need to know which reflection in an autocollimator is "P" or "1" or "2" or "3"? Probably not
Orion ED80 - AT Voyager with TNT,pier ext.,Vixon steel tray and Manny's mod.
Omni 120 cg4 with Orion pier ext. and RA drive, Binotron-27 (25mm & 17mm Sterlings)
Orion XT10(Original F/5) SkyStopper Equatorial Platform
Jason Constellation Model 311(Modified with 1.25"Crawford Machine focuser & rings)
Quote:Quote:... but what if someone asks about obtaining perfect collimation with an autocollimator? Well . . . I hope they were serious, because that will elicit a serious response Who woke me up from my slumber? I thought I heard the word "autocollimator"
Quote:Thank you Jason for your in depth posts with pictures. It was very helpful and got me to where I am today which was seeing the (nice doughnut shape) in my star test and getting very nice detail on Jupiter.Ken
Quote:A question... I thought that when adjusting the secondary that you where looking for the secondary to be centered in the focuser and round. Then you adjust the tilt until you can see the main mirror clips. Is this not right?