“I am the only person to ever ace a 1951 USAF resolution test. My 'to observe' list says 'done'. I do not use charts or atlases when I starhop; men do not use maps. One of my sketches won an SBIG deep sky imaging contest. I am the life of star parties I have never attended. I never say anything looks like a faint fuzzy - not even a faint fuzzy. Pilots aim green laser pointers at me. Don Pensack proofreads my CN forum posts.” - The Most Interesting Astronomer in the Universe
Shane in black-zone New Mexico
Quote: Shortest possible 2" eyepeice configuration
C14 XLT, CGE NexSTAR 11 GPS + 120ST APM/TMB 130/780, AT111EDT SW EQ5P (2" Tripod/20" Pier) XW's 3.5mm - 20mm, 28mm RG, TVZ 2-4 ES14mm/20mm 100° UWAN 28mm,Paragon 40mm, TV55, Meade 2X 2" TeleXtender TMB SMC 4mm-16mm, Pentax 0-18, CZJ 0-25 EarthWin PFS-DBSE, WO DuraBright, AP MaxBright TV Bino's Bino Sets X 2: UO H.D's ~ 5mm-18mm, TV Pl.(NJ's)7.4mm - 40mm 16T5's, 24mm Pans Canon 18X50 IS Pentax 7X35 (9.3°
Quote:The 2" tube, 2" refractor diagonal, and TV 55mm Plossl (or other eyepiece having the maximal 46mm field stop.)I did this with my first 8" SCT in '85-86, to very good effect. I could not detect illumination fall-off, although I knew it was present.
Quote:And here's the GSO Diagonal attached to the OTA with the 2" Nosepiece removed and threaded directly to the spacer and then OTA.Looks like I was mistaken as the Diagonal would still hit the Focuser knob, however I never needed to change the orientation of the Diagonal as the Mount was Alt/Az. The spacer was in fact needed to allow clearance for the 2" - 1.25" Adapter thumb screws.Jim, I believe you have a 2" GSO Diagonal already that should work with the addition of a cheap O-Ring.Mike
Celestron EdgeHD 8 + AVX | Sky-Watcher Pro 100ED APO + Vixen Porta II + Oberwerk Tall | Celestron NexStar 6SE Fujinon Polaris 10x50 FMT-SX | Bushnell 10x42 Legend Ultra HD
François C8 f/10, lunt 102 mm f/7 ED. SkyWatcher 12" f/5. pentax XW 40, 30,10 delos 14, 8, 6, 4.5. Vixen lvw 22 Brandon 12, 8 TV 2x barlow Closer and closer to the ideal eyepiece collection, but never reaching perfection