Quote: Nice to hear that the 14" may not have heinous coma.
6'' Orion SkyQuest f/5 12.5" Astrotel truss dob f/3.3 20" Super FXQ Starmaster William Optics 80mm ZenithStar ED II 1850/2500 Observing sessions grand total for 2013, 49. So far in 2014, 11
Scopes: 10" dob, 13" dob, 4" refractor
"Only gold is money, and nothing else. " - John Pierpont Morgan
-- Matt -observing since fall 2012 16" F/4.5 truss DOB / EON 120mm ED / 10" F/5 strut DOB Paracorr (T1 tunable),telrad, RACI finders, AltAz Tripod mount ES 82° 4.7,6.7,8.8,30mm AT Paradigm 60° 25,18,12mm Pentax XW 70° 20,14mm , Baader zoom observing list/notes.. beginning dslr astrophotos (moon/widefields)
Takahashi TSA-120 & Explore Scientific 102mm APO Refractors
Lunt 60mm PT Ha
Celestron Edge 800 & Edge 1100 SCT's
Celestron AVX & CGEM Mount's
Televue Ethos 100* 21mm, 17mm, 13mm, 10mm and 6mm & Explore Scientific 82* 4.7mm Canon Rebel T3i DSLR SBIG STF-8300M, FW5-8300, OAG-8300, ST-Ic guide & planetary camera
10" Sumerian, Webster D18, solar scope, small 'frac, Vixen Foresta 8x42 Take action against Light Pollution. Together we can make a difference.
Quote: Alt and Az movements are hard to set because the structure move a lot when temp drops and brakes doesnt work properly until set again but still not very stable anyways, cant put the eyepiece without everything inside going all around.
Happy owner of--
A Mag 1, 12.5 inch Porta Ball
A Dual Axis Equatorial Platform
A PST Double Stack
I am from New Zealand under nice dark southern hemi-sphere skies.Been in and out of astronomy and telescope making for 50 years now. Slogan: The heavens declare the glory of God. Scopes: 6" f6.5 Newt. 14" f5.09 Hubble Optics powered Dob. 25.2" f4.68 Strut Dob.(Home grown primary) Eyepieces. ES82 30mm,24mm,11mm 8.8mm.TV Nagler 20mm type 2.TV Plossl 7.4mm.Some GSO eyepieces and barlows. WO Binoviewers.
Quote:Quote: Alt and Az movements are hard to set because the structure move a lot when temp drops and brakes doesnt work properly until set again but still not very stable anyways, cant put the eyepiece without everything inside going all around. Could you clarify? This does not sound good.
12.5" Home built F-4.8 Eq Newt. Lightholder Optics mirror 12'x12' roll-off roof observatory 6" Home built f-6 Newt. w/Dick Wessling mirror on CG-5 Eq. mount. 4.5" Orion Starblast My equipment philosophy... If it ain't broke, fix it anyway.
Quote:sorry acochan I don't think im making myself clear: I mean, can a hubble optics sandwich mirror be refigured the same way a normal mirror can?