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Re: Decisions, decisions...HELP!

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  • williamopticsmarketing
    WO USERS GALLERY: http://www.william-optics.com/wo_gal/catalog/index.php?cPath=33_34 WO USERS WEBSITE LINKS:
    Message 1 of 8 , Jan 3, 2006
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      The ZS105 was designed by WO; the ZSFD was designed by Thomas Back
      and tweaked a bit by WO's optical designer.

      The Fluorostar lens is made by TEC and is an amazing 110mm objective
      for astrophotography.

      --- In William-Optics@yahoogroups.com, "fccolosimo" <fcc0@h...> wrote:
      > Hi Chris,
      > I am pondering the same kind of question. I am fairly new to the WO
      > product line and this group, but let me tell you, the WO scopes
      > definitely have me drooling, for both their optics and CCD-friendly
      > rigid construction! I did a little piggyback astrophotgraphy with
      > f/5 102mm achro refractor on my C11, and the wide field views (and
      > EASE of tracking with the larger FOV) were just fantastic -I am
      > hooked. However, the color shots were totally ruined by the
      > chromatic aberration, which did not SEEM very bad at all visually.
      > assumed I could focus each color individually, but this still did
      > produce good images. For that reason, I have been thinking of
      > my money and somehow get to the WO FLT 110. The color correction
      > graph looks fantastic there. The trouble is, at that price, it is
      > only a few hundred bucks less than a Takahashi FSQ 106N, which has
      > wider field at f/5, and also has a reputation for good quality. In
      > fact, the TeleVue NP101 and the StellarVue 115 Triplet also in this
      > price range. Ugh, what to do? I think I can get the wife to go
      > along with this if I make a good decision, but I will not be able
      > change my mind. I guess any of them should be really good, but has
      > anyone on this group owned one or more of these $3,000+ scopes and
      > done any CCD work?
      > Frank
      > --- In William-Optics@yahoogroups.com, "chris" <lineman_16735@y...>
      > wrote:
      > >
      > > I have been long pondering my WO scope purchase. I want either
      > ZS
      > > 105, or the Zenithstar 80 FD. I have been reading a lot about
      > APO's
      > > and still am not sure. This scope will be used for imaging, so I
      > am
      > > leaning more towards the the 105. The questions I can't seem to
      > > answer are: What kind of ED glass does the 105 have? What are
      > > mating elements? W.O. offers a chromatic abberation graph on
      > > site. Being the dummy that I am I can make neither heads nor
      > of
      > > it. I do know that the graph for the 80 FD and The ED triplet
      > > very different. I would also like to know the spacing of the
      > lenses
      > > in both designs. I know the 80 FD was codesigned with TMB so I
      > > sure it is an optically sound design, but who designed the 105
      > triplet
      > > ED, and is it as well corrected as the 80 FD? Sorry for all the
      > > questions but I am chomping at the bit. I finally got my
      > > wife to say "Do what you want!". What I really heard her say
      > was,"You
      > > really deserve it honey, go for it!".
      > >
      > > Chris
      > >
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