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  1. Celestron Powerseeker 114 eq help!!!
  2. What exactly those rectangular shadows in defused star test.
  3. Check Quality of Optics
  4. 12" apertura base compatible with zhumell?
  5. What am I seeing?
  6. Bushnell GoTo
  7. Cleaned the primary mirror, can't gain focus.
  8. CCD camera instead (in place) of secondary mirror
  9. Orbitor 9000 6" reflector
  10. Orion Optics UK Europa 150mm F6
  11. Where to find affordable mirrors?
  12. Maybe I want one of these?
  13. Skywatcher Explorer-200PDS for visual
  14. Mirror Removal on Coulter Odyssey
  15. I Stole a Telescope, Need Help!!!!
  16. Things that made collimation difficult...
  17. Replacing the focuser tube on a reflector
  18. First views of cresent moon with new scope..
  19. Artec 200
  20. Newtonian on a CGEM II Mount
  21. What is the purpose of luxury-class Dobsonians with ~12"- 16" apertures?
  22. Case for a C8N
  23. Wavefront error and actual impact on viewing in a reflector
  24. Tasco 3T - 76mm F/9.2 Newtonian from 1985
  25. Skywatcher 200mm f5 imaging reflector ( black diamond series )
  26. Dumpster Scope
  27. Collimating too much???
  28. Best telescope for terrestrial observing with Panasonic GH5?
  29. Help! Mirror Fog!
  30. Tasco galaxsee 45
  31. How to know which reflectors will reach focus for AP
  32. Favorite up grade to your dob?
  33. Is there a Newtonian design that eliminates star spikes and other distortions?
  34. How Clean Does the Primary Mirror Need to Be - Really?
  35. Mirror re-coating
  36. Need instructions
  37. Helios Skyhawk 114-2
  38. Tasco 11TR
  39. Officina Stellare RH-200
  40. Perfect case for your 4" (~100mm) refractor
  41. Setting up a Celestron 52268 C90 for afocal Digiscope
  42. astrophotography with celstron astromaster 114 eq
  43. Bausch and lomb criterion 8000 manual needed
  44. Celestron 6 inch classic reflector
  45. re-coating mirrors at the South Africa Astronomical Observatory
  46. Why not silvered mirrors?
  47. f4 Quatro
  48. Newbie looking for Telescope
  49. Ineterested in questions about manual entry level reflectors for a paper.
  50. Looking for instruction manual PDF for an Apertura AD12
  51. Collimating a bird-jones without a primary centre spot
  52. Celestron Astro Fi WiFi telescopes?
  53. Newtonian rotation rings, basic
  54. RC 8" Collimation lessons learned, quesstions
  55. Collimation Cap or cheshire?
  56. esperience with Starblast 6i?
  57. storage? LX70 equatorial mount
  58. Help new astronomer
  59. Moving....Crash! Boom! Bang! My scope!
  60. Bresser N-150L on a CG4 mount
  61. Care and handling of a truss style dob.
  62. Collimation shout out to Philip
  63. Newtonian for Astrophotography
  64. Non-typical Secondary mirror on 20" RC?
  65. Bresser Newtonian OTA
  66. Alignment
  67. XT12 primary mirror quality
  68. Photography with Newtonians Question
  69. Should I referb this scope more?
  70. Wisdom of 10" F/3.9 for Visual with Some AP and limit travel, Eyepiece Focal lengths
  71. collimation question
  72. Obsession primary moving and solution
  73. Mirror cleaning, not so bad
  74. Can't collimate
  75. Rehabing an old handmade telescope
  76. Orion starseeker IV goto 150mm telescope
  77. Suggestions for Travel Scope
  78. Is it time to clean?
  79. Orion xt10 vs xt10i
  80. cooling fan mod for Orion 8" newt
  81. flocking this flocker...
  82. Sky Watcher Collapsible Dobsonians ???
  83. Installing a Moonlight CR2
  84. Thread size for secondary mirror adjusting screws ???
  85. Aperture 10" pros & cons
  86. eVscope (Enhanced Vision scope)
  87. Vixen VMC 110L magnification problems
  88. Focal reducer for a Mak-Newt?
  89. Apertura Dobsonian 10" supplied EPs
  90. Zhumell, Orion, Apertura?
  91. Difference Dirty mirror vs Clean mirror in visual observations
  92. Hubble Optics
  93. Has anyone used the Explore Scientific 8 inch carbon fiber Newt?
  94. New Telescope Has Arrived!
  95. Orion Skyquest xt 6 Classic Dobsonian wants to come home
  96. Telescope Parts
  97. Homemade 1969 Newtonian First Light
  98. Solar Tracking Question
  99. Re: Meade 114EQ-DH Drive Motor
  100. Orion SkyQuest Part Needed
  101. New to Astronomy - Telescope recommendation
  102. EZ push to
  103. Spacek (not Sissy) Telescope
  104. M Ritchey-Chretien advice
  105. At8
  106. A few Coma Corrector examples..
  107. Drawtube alignment with optical path.
  108. Orion f/4.9 OTA collimation
  109. Colimation by numbers
  110. A 24" scope, and the Cloud Gods take a holiday!!!
  111. Laser collimators
  112. Looking For New Mirrors
  113. Orion XT8 Plus on Orion Atlas Pro EQ/AZ-G.
  114. my Bushnell 769648 is blurry
  115. AWB Onesky 130 at the beach
  116. Freebie Scope --- What do I have???
  117. I got a new scope!!!
  118. Ritchey-Chretien ...
  119. First light with new Mag1 Instruments Portaball 12.5"
  120. Modification: Adding a Telrad beside the RACI on an XT10i
  121. New SLT short tube ?
  122. Edmund Astroscan
  123. Diagonal cleaning
  124. 100% illuminated spot in the FOV
  125. GSO RC collimation
  126. secondary mirror size for newtonian reflector telescopes
  127. First lighting of a Z10, a mini-review
  128. Great deal on a reflector and Goto AZ mount!
  129. Collimating during session
  130. Astromaster 114 - blurry
  131. Considering 11 year old XT6, thoughts/concerns?
  132. Focuser axial alignment in Newtonian Reflectors
  133. Anyone using AT 10" f/4 carbon fiber truss-tube imaging Newtonian?
  134. Twisted spider vein
  135. First light on the Orion 8" Astrograph.
  136. Orion 6" F/4 Newtonian Astrograph First Impression
  137. Criterion RV6 Makeover
  138. Farpointastro collimation aid issue
  139. Zhumell Z100 100mm f/4
  140. secondary enhanced mirror coatings question
  141. Rainbow/prism effect.
  142. The Jones-Bird telescope design - the IS and ISN't
  143. 15 inch primary mirror has a scratch
  144. Yet another collimation aid
  145. travelling with 15 inch primary mirror
  146. Maksutov Newtonian or Just Regular Newtonian?
  147. Request for Image
  148. Thoughts on a new imaging reflector
  149. Aligning Secondary on Celestron 127EQ w/ or w/o Correction Lens?
  150. Water spots on the primary - 10" newt, Should I clean it?
  151. Weird zooming on Celestron PowerSeeker 127eq?
  152. Welcome to my nightmare.
  153. Suggestions for high-quality Dobsonian optics?
  154. Question about "Lowest Useful Magnification" & focal reducers
  155. ES 2" coma corrector any good?
  156. Cruelty to telescopes
  157. All You Want to Know about Bird-Jones Telescopes and More
  158. Yes I did sneak one in there. Grab and go or not?
  159. Collimation problems
  160. K-Way telescope (for RSA members)
  161. Celestron knows how to throw a curve
  162. Is this worth the money
  163. Pulled the trigger on a Celestron AstroMaster 130EQ MD
  164. Trading with a friend - Is this an equal trade?
  165. What have I done?
  166. Orion SpaceProbe 130ST
  167. upgrading to my second scope recommendations
  168. 130mm f/5 reflector vs. 102mm f/6.5 Achromat Refractor
  169. Now what is wrong with this picture?
  170. Glatter Tools
  171. Question about Mak-Newt Astrographs
  172. Finally My Dream OTA comes true
  173. Finally bought new scope and mount.
  174. Laser, barlowed laser, collimation cap, and cheshire collimator: my experience
  175. Close View Secondary Adjustment (CVSA)
  176. Collimation Issue...any suggestions?
  177. Up, up and away above....
  178. It's only half as bad as you think it is....
  179. Quick Mirror Clean?
  180. Newb question: 2x or 3x barlow?
  181. Now's your chance so hurry!
  182. Newb question re: Celestron 127EQ
  183. Not a grab-n-go: 22-inch solid tube on GEM
  184. 12" f5 Newtonian
  185. What do we accomplish when we collimate a primary mirror?
  186. 10" Newtonian vs 8" R-C
  187. A poorer man's coma corrector
  188. Why do we not see longer focal ratios especially on smaller appateur scopes?
  189. NStiesi's C8N rebuild thread
  190. DO I still need Star charts?
  191. What if I have been wrong all this time?
  192. And just to round things off....
  193. 8 inch Reflector on an Equatorial mount for $425 new (link to Amazon)?
  194. The secondary mirror...nothing more than a driver's side rear view mirror
  195. Dented diffraction ring patterns in star test.
  196. first impression review of tpo f6 6" imaging newt
  197. Best "budget" scope?
  198. Eyepieces and mount for Omni 150/750.
  199. a sheepish re-request
  200. Opinions on focuser upgrade sought
  201. Identification
  202. damage advice request
  203. out of focus stars..
  204. Decisions...Which is 'best'...Recommendations?
  205. best 6" F/5 reflector?
  206. Cleaning a spec off secondary mirror?
  207. Orion 203mm f4.9 and Baadar mpcc question and observation
  208. Collimation issue or something else?
  209. Pulled the Trigger - Clouds for a Month
  210. Just finished servicing my 5" reflector
  211. Meade R8 F/5 first impression
  212. colimention problem or?
  213. swapping out OTA
  214. Meade DS 2130
  215. AstroZap Reflector?
  216. Celestron 6" Newtonian
  217. Laser collimator collimation
  218. A little embarrassed
  219. GEO77 telescope
  220. Another couple questions about my 8" dob
  221. Schmidt vs Newt, Planetary
  222. Legit store site
  223. Bird - Jones Collimation Note
  224. Tips for m31
  225. Meade TeleStar / DS-2130AT
  226. Question about my 8" dob
  227. Need Suggestions for remounting primary mirror
  228. Celestron 127EQ or Celestron 130EQ
  229. New 8" Orion Astrograph
  230. Dew Prevention Idea
  231. Can optics be to fast
  232. are focal reducers compatible with newtonian reflectors?
  233. Central Obstruction Effects in Telescope Resolution.
  234. Hi! I am new to this forum.
  235. First and Second Lights - Meade Polaris 130
  236. New guy...what am I in for?
  237. Meade 114EQ-DH Drive Motor
  238. Considering upgrading from 6 to 8 inches.
  239. EFA kit for Planewave CDK 12.5
  240. Frequent collimation required on new scope
  241. Safe to look at tonights eclipse through a 10 inch scope?
  242. First light with Orion GX250
  243. Do you have to be at a dark site to see nebulae and clusters?
  244. Orion GX 250
  245. 250mm Quattro vs NEQ6Pro Astrophoto
  246. Visionary Mira Ceti
  247. TPO 8" F4 imaging newtonian
  248. Can Bob's Knobs be better...?
  249. Is upgrading a 4.5" to a 8" telescope really worth it?
  250. mining in the red box