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 Round Table EQ Platform
Orion XT12G Telrad Orion Q70 32mm ES 82* 8.8mm ES 82* 6.7mm ES 82* 4.7mm Baader Hyperion Mark-2 Zoom Orion Skyline GLP + finder bracket Astro-Tech 2x Barlow for 2" and 1.25" Orion Variable Polarizing Eyepiece Moon Filter Orion UltraBlock Narrowband Filter GPS An awesome wife that bought me the telescope! Apertura AD8 with tweakers package Celestron 15x70 Starmaster Binoculars with tripod Celestron Neximage 5 Member CFAS http://www.astrobin.com/users/billytk/
Quote:I got a Z12 (same as AD12) and got the mirror refigured by Steve Swayze. That was about $1000 and is working out well for me. I did the tweaking myself. I don't think you can go bigger very easily for $1500. Good luck!
-- 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)
Orion XT8, Celestron 102mm f/10, 62mm Mayflower
10x50, and 16x32 binos
Quote:I am interested in upgrading my telescope. I currently own an Orion 8XT. I am trying to decide on whether I should get a larger diameter Dob (same manufacturer) or one with better optics (Discovery or Zambuto optics). I have about $1500.00 to spend.Thank you for your help!
woody a parsec farther out... 12.5" f/4.8 custom truss dob, EQ platform
Quote: My guess is you would notice more of a difference going bigger than you would going "better", depending on how much bigger we're talking about and how good your current mirror is.
Happy owner of-- A Mag 1, 12.5 inch Porta Ball A Dual Axis Equatorial Platform A PST Double Stack
Los Bichos atacan
Quote:In my mind, there is no question that quality trumps aperture. On the other hand, I think that many folks wouldn't know a great mirror if it bit them on the toe, and it always amazes me what even fellow astro club members are unable to see. So, the best way to answer this question is to observe with a lot of folks/scopes (e.g. astro club), and see first hand what is what. One person's "the difference is night and day" is another person's "I see no difference at all". I guess it shouldn't be surprising, given the differences in observing skill and eyesight.
Quote:If I were interested primarily in the deep sky, I would looking for a larger scope, a used 16 inch Lightbridge is well within the budget. There is a 16 inch Lightbridge on the San Diego Craigslist for $1000. I would keep my eye on the local Craigslist, and carefully watch Astromart.
Quote:I am not a big fan of the "if you are not doing planetary observing then you don't need a great optic" argument. While there seems to be some basis to believe it, I remain skeptical of its validity. Even when observing targets that one would think would be unaffected, I have never been impressed with the views through a poor optic.
Quote:You have all given me a lot to think about. Right now I am leaning towards a buying a used telescope in the 12.5 to 14 inch diameter size with good optics. The trussscopes look to be lighter so thatis another consideration. I realize that patience is key because most of the ads that I have seen require local pick up.For optics, is the gold standard for mirrors Zambuto optics? Are there other optics that any could recommend? I know that even with a quality company some "lemons" are produced.John, I will look at the moon with a solar filter and try and see what you are talking about. I never thought of doing that.Thanks again everyone, you have been abig help!
Quote: I know that even with a quality company some "lemons" are produced.