My eyepieces are made from the waste product of exploding stars.
10XTi 102XLT ST80A(2" Focuser); President, Eypieces Anonymous, Denver Chapter (Hello, I'm an eyepiece junky, what's your excuse?)
DAS Dark Site
Les US Navy Veteran
-Tristan Schwartz- Former Resident Astro-Guru, Arizona Museum of Natural History
Member of Colorado Springs Astronomical Society Look for my article "Making the Case for Structured Observing," coming to Sky & Telescope in 2014!
6" Orion DSE Dob, Coronado PST
Quote:What kind of dob do you have? If it's a solid tube 6" to 10" then you could get a set of tube rings from Orion where one of the rings has a built in piggyback adapter and just clamp that to the tube.
Solar Imaging Tutorial • Circa 1958 Gilbert 3" Reflector • Astro-Physics 105 EDT (Traveler) • Astro-Physics160 EDF • Astro-Physics175 EDF • Coronado 90/90/30 Hα • PSTs in Ha and CaK flavors • Circa 1810 Utzschneider,Reichenbach,Fraunhofer • Circa 1825 Merz,Utzschneider,Fraunhofer • Etc. etc.
Orion xx14g Dob CPC 1100 w/Skywatcher 80ED piggybacked Coronado PST TMB 92L refractor AT Voyager mount Nexstar 6/8 mount Denk Big Easy binoviewers Oodles of eyepieces and other optical gadgets Past scopes Meade 8" reflector and 8" SCT
Quote:Another solution is to use a precision adapter (with 1/4"-20 threads). These are relatively inexpensive and work quite nicely, allowing almost micrometer-like adjustment on both axes.Paul
Ken Fiscus- stargazing since 1980. Now observing from a green zone.
Z12 on custom mount, Atomic EQ platform, 100% flocked, OMI primary, Astrocrumb filter slide with O-III, NPB, & skyglow filters. Focuser & spider rotated 45 degrees. New springs & Bob's Knobs, Telrad & 9x50 straight finder 35 & 24 Pans, TV 13,7,5 T6s
Custom Orion XT10 with piggyback XT4.5 on Round Table EQ Platform
Quote:To throw a wrinkle into the works, I also use a PST for outreach, but no one looks through the PST itself. I use a Meade electronic EP and a 12-foot cable into a small monitor.
Quote:Quote:Another solution is to use a precision adapter (with 1/4"-20 threads). These are relatively inexpensive and work quite nicely, allowing almost micrometer-like adjustment on both axes.Paul We have a winner! That's perfect- thanks much!
Quote:My experience with similar "precision slow motion adapters" is that they are not very rigid. Workable for a 35mm camera with a short focal length lens but not for a scope.
Quote:Has anyone ever tried mounting a PST to a Dob? I just picked up a PST and would like to do this. I have an EQ platform for my dob, so this would allow me to having tracking for whitelight and Ha at the same time- very handy for outreach...
17.5" f4.1 Manual Discovery Split Tube Dobsonian (Love 100 AFOV and wide TFOVs).
Denk II Dual Power Switch 3x3=9 powers x3 OCS = 27 power options per eyepiece pair.
2.3x40 to 25x100 Binos (and many in between).