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  1. What is the purpose of luxury-class Dobsonians with ~12"- 16" apertures?
  2. Case for a C8N
  3. Wavefront error and actual impact on viewing in a reflector
  4. Tasco 3T - 76mm F/9.2 Newtonian from 1985
  5. Skywatcher 200mm f5 imaging reflector ( black diamond series )
  6. Dumpster Scope
  7. Collimating too much???
  8. Best telescope for terrestrial observing with Panasonic GH5?
  9. Help! Mirror Fog!
  10. Tasco galaxsee 45
  11. How to know which reflectors will reach focus for AP
  12. Favorite up grade to your dob?
  13. Is there a Newtonian design that eliminates star spikes and other distortions?
  14. How Clean Does the Primary Mirror Need to Be - Really?
  15. Mirror re-coating
  16. Need instructions
  17. Helios Skyhawk 114-2
  18. Tasco 11TR
  19. Officina Stellare RH-200
  20. Perfect case for your 4" (~100mm) refractor
  21. Setting up a Celestron 52268 C90 for afocal Digiscope
  22. astrophotography with celstron astromaster 114 eq
  23. Bausch and lomb criterion 8000 manual needed
  24. Celestron 6 inch classic reflector
  25. re-coating mirrors at the South Africa Astronomical Observatory
  26. Why not silvered mirrors?
  27. f4 Quatro
  28. Newbie looking for Telescope
  29. Ineterested in questions about manual entry level reflectors for a paper.
  30. Looking for instruction manual PDF for an Apertura AD12
  31. Collimating a bird-jones without a primary centre spot
  32. Celestron Astro Fi WiFi telescopes?
  33. Newtonian rotation rings, basic
  34. RC 8" Collimation lessons learned, quesstions
  35. Collimation Cap or cheshire?
  36. esperience with Starblast 6i?
  37. storage? LX70 equatorial mount
  38. Help new astronomer
  39. Moving....Crash! Boom! Bang! My scope!
  40. Bresser N-150L on a CG4 mount
  41. Care and handling of a truss style dob.
  42. Collimation shout out to Philip
  43. Newtonian for Astrophotography
  44. Non-typical Secondary mirror on 20" RC?
  45. Bresser Newtonian OTA
  46. Alignment
  47. XT12 primary mirror quality
  48. Photography with Newtonians Question
  49. Should I referb this scope more?
  50. Wisdom of 10" F/3.9 for Visual with Some AP and limit travel, Eyepiece Focal lengths
  51. collimation question
  52. Obsession primary moving and solution
  53. Mirror cleaning, not so bad
  54. Can't collimate
  55. Rehabing an old handmade telescope
  56. Orion starseeker IV goto 150mm telescope
  57. Suggestions for Travel Scope
  58. Is it time to clean?
  59. Orion xt10 vs xt10i
  60. cooling fan mod for Orion 8" newt
  61. flocking this flocker...
  62. Sky Watcher Collapsible Dobsonians ???
  63. Installing a Moonlight CR2
  64. Thread size for secondary mirror adjusting screws ???
  65. Aperture 10" pros & cons
  66. eVscope (Enhanced Vision scope)
  67. Vixen VMC 110L magnification problems
  68. Focal reducer for a Mak-Newt?
  69. Apertura Dobsonian 10" supplied EPs
  70. Zhumell, Orion, Apertura?
  71. Difference Dirty mirror vs Clean mirror in visual observations
  72. Hubble Optics
  73. Has anyone used the Explore Scientific 8 inch carbon fiber Newt?
  74. New Telescope Has Arrived!
  75. Orion Skyquest xt 6 Classic Dobsonian wants to come home
  76. Telescope Parts
  77. Homemade 1969 Newtonian First Light
  78. Solar Tracking Question
  79. Re: Meade 114EQ-DH Drive Motor
  80. Orion SkyQuest Part Needed
  81. New to Astronomy - Telescope recommendation
  82. EZ push to
  83. Spacek (not Sissy) Telescope
  84. M Ritchey-Chretien advice
  85. At8
  86. A few Coma Corrector examples..
  87. Drawtube alignment with optical path.
  88. Orion f/4.9 OTA collimation
  89. Colimation by numbers
  90. A 24" scope, and the Cloud Gods take a holiday!!!
  91. Laser collimators
  92. Looking For New Mirrors
  93. Orion XT8 Plus on Orion Atlas Pro EQ/AZ-G.
  94. my Bushnell 769648 is blurry
  95. AWB Onesky 130 at the beach
  96. Freebie Scope --- What do I have???
  97. I got a new scope!!!
  98. Ritchey-Chretien ...
  99. First light with new Mag1 Instruments Portaball 12.5"
  100. Modification: Adding a Telrad beside the RACI on an XT10i
  101. New SLT short tube ?
  102. Edmund Astroscan
  103. Diagonal cleaning
  104. 100% illuminated spot in the FOV
  105. GSO RC collimation
  106. secondary mirror size for newtonian reflector telescopes
  107. First lighting of a Z10, a mini-review
  108. Great deal on a reflector and Goto AZ mount!
  109. Collimating during session
  110. Astromaster 114 - blurry
  111. Considering 11 year old XT6, thoughts/concerns?
  112. Focuser axial alignment in Newtonian Reflectors
  113. Anyone using AT 10" f/4 carbon fiber truss-tube imaging Newtonian?
  114. Twisted spider vein
  115. First light on the Orion 8" Astrograph.
  116. Orion 6" F/4 Newtonian Astrograph First Impression
  117. Criterion RV6 Makeover
  118. Farpointastro collimation aid issue
  119. Zhumell Z100 100mm f/4
  120. secondary enhanced mirror coatings question
  121. Rainbow/prism effect.
  122. The Jones-Bird telescope design - the IS and ISN't
  123. 15 inch primary mirror has a scratch
  124. Yet another collimation aid
  125. travelling with 15 inch primary mirror
  126. Maksutov Newtonian or Just Regular Newtonian?
  127. Request for Image
  128. Thoughts on a new imaging reflector
  129. Aligning Secondary on Celestron 127EQ w/ or w/o Correction Lens?
  130. Water spots on the primary - 10" newt, Should I clean it?
  131. Weird zooming on Celestron PowerSeeker 127eq?
  132. Welcome to my nightmare.
  133. Suggestions for high-quality Dobsonian optics?
  134. Question about "Lowest Useful Magnification" & focal reducers
  135. ES 2" coma corrector any good?
  136. Cruelty to telescopes
  137. All You Want to Know about Bird-Jones Telescopes and More
  138. Yes I did sneak one in there. Grab and go or not?
  139. Collimation problems
  140. K-Way telescope (for RSA members)
  141. Celestron knows how to throw a curve
  142. Is this worth the money
  143. Pulled the trigger on a Celestron AstroMaster 130EQ MD
  144. Trading with a friend - Is this an equal trade?
  145. What have I done?
  146. Orion SpaceProbe 130ST
  147. upgrading to my second scope recommendations
  148. 130mm f/5 reflector vs. 102mm f/6.5 Achromat Refractor
  149. Now what is wrong with this picture?
  150. Glatter Tools
  151. Question about Mak-Newt Astrographs
  152. Finally My Dream OTA comes true
  153. Finally bought new scope and mount.
  154. Laser, barlowed laser, collimation cap, and cheshire collimator: my experience
  155. Close View Secondary Adjustment (CVSA)
  156. Collimation Issue...any suggestions?
  157. Up, up and away above....
  158. It's only half as bad as you think it is....
  159. Quick Mirror Clean?
  160. Newb question: 2x or 3x barlow?
  161. Now's your chance so hurry!
  162. Newb question re: Celestron 127EQ
  163. Not a grab-n-go: 22-inch solid tube on GEM
  164. 12" f5 Newtonian
  165. What do we accomplish when we collimate a primary mirror?
  166. 10" Newtonian vs 8" R-C
  167. A poorer man's coma corrector
  168. Why do we not see longer focal ratios especially on smaller appateur scopes?
  169. NStiesi's C8N rebuild thread
  170. DO I still need Star charts?
  171. What if I have been wrong all this time?
  172. And just to round things off....
  173. 8 inch Reflector on an Equatorial mount for $425 new (link to Amazon)?
  174. The secondary mirror...nothing more than a driver's side rear view mirror
  175. Dented diffraction ring patterns in star test.
  176. first impression review of tpo f6 6" imaging newt
  177. Best "budget" scope?
  178. Eyepieces and mount for Omni 150/750.
  179. a sheepish re-request
  180. Opinions on focuser upgrade sought
  181. Identification
  182. damage advice request
  183. out of focus stars..
  184. Decisions...Which is 'best'...Recommendations?
  185. best 6" F/5 reflector?
  186. Cleaning a spec off secondary mirror?
  187. Orion 203mm f4.9 and Baadar mpcc question and observation
  188. Collimation issue or something else?
  189. Pulled the Trigger - Clouds for a Month
  190. Just finished servicing my 5" reflector
  191. Meade R8 F/5 first impression
  192. colimention problem or?
  193. swapping out OTA
  194. Meade DS 2130
  195. AstroZap Reflector?
  196. Celestron 6" Newtonian
  197. Laser collimator collimation
  198. A little embarrassed
  199. GEO77 telescope
  200. Another couple questions about my 8" dob
  201. Schmidt vs Newt, Planetary
  202. Legit store site
  203. Bird - Jones Collimation Note
  204. Tips for m31
  205. Meade TeleStar / DS-2130AT
  206. Question about my 8" dob
  207. Need Suggestions for remounting primary mirror
  208. Celestron 127EQ or Celestron 130EQ
  209. New 8" Orion Astrograph
  210. Dew Prevention Idea
  211. Can optics be to fast
  212. are focal reducers compatible with newtonian reflectors?
  213. Central Obstruction Effects in Telescope Resolution.
  214. Hi! I am new to this forum.
  215. First and Second Lights - Meade Polaris 130
  216. New guy...what am I in for?
  217. Meade 114EQ-DH Drive Motor
  218. Considering upgrading from 6 to 8 inches.
  219. EFA kit for Planewave CDK 12.5
  220. Frequent collimation required on new scope
  221. Safe to look at tonights eclipse through a 10 inch scope?
  222. First light with Orion GX250
  223. Do you have to be at a dark site to see nebulae and clusters?
  224. Orion GX 250
  225. 250mm Quattro vs NEQ6Pro Astrophoto
  226. Visionary Mira Ceti
  227. TPO 8" F4 imaging newtonian
  228. Can Bob's Knobs be better...?
  229. Is upgrading a 4.5" to a 8" telescope really worth it?
  230. mining in the red box
  231. cant wait
  232. Yay or Nay?
  233. Can I get some feedback from both sides? Laser Collimator or Cheshire?
  234. New DOB seems to work just fine.
  235. Have any of you ever tried to make a rolling base for your DOB?
  236. Leaving to go get the 10 inch DOB!
  237. Review: Lunt50THa B600 Solar Scope
  238. Advice on what to look for when buying a used telescope.
  239. 2+ months research - My current thoughts on getting a new OTA
  240. What do you guys think?
  241. What are the best brands
  242. How to clean the telescope
  243. Cheshire for an RV6 ?
  244. TPO/GSO/Orion?...!
  245. Second light Celestron Omni XLT 120
  246. Telescope with broken goto
  247. E bay bargain
  248. Bird Jones to newtonian
  249. Mirror cleaning question
  250. Used Astromaster 114eq experience, some tips.