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  1. #1
    Doink's Avatar
    Doink Guest

    Default LOTS of false color on Orion 100mm APO



    Greetings----

    A friend of mine bought an Orion 100MM APO about 4 months ago---personally,
    I think the views stink. There is a ton of false color---as bad as any
    typical achro and the field is crappy as you move from the center of view.
    It appears to be in collimation (I mean collimated) as defocusing----in and
    out---produces a very symmetrical circle---no rings, just a blurry round
    disc. The mechanics----focuser especially---are junk too---image shift and
    it's a crayford focuser! I have the 80mm APO from Orion and it's beautiful.
    But the 100 seems like a waste of money. The 120ST I bought on Astromart
    for $180 blows his "APO" away.

    So what's up? Did he get a dud? The cell is adjustable, should I try to
    adjust it? What would I look for? Could the problem all be in the
    diagonal?

    Doink.



  2. #2
    Tim Killian's Avatar
    Tim Killian Guest

    Default LOTS of false color on Orion 100mm APO

    The diagonal could cause some minor color if it's a prism type, but I
    doubt that it's the problem. More likely, he received a lens with some
    errors in the element spacing, or an element is reversed. He should send
    it back to Orion and get a replacement - don't bother trying to adjust
    the cell.




    Doink wrote:

  3. #3
    Doink's Avatar
    Doink Guest

    Default LOTS of false color on Orion 100mm APO

    Should I set my 80 APO side by side for comparison? It should be
    comparable, right? I know that seems obvious, but I can't find any reviews
    on their 100mm---lots of raves on the 80 but nothing on the 100mm....I
    wonder if the 100mm is just a dud?

    Doink

    "Tim Killian" <TJK@notmyrealemail.com> wrote in message
    news:aaOdnfDRQ8OFIoneRVn-tA@bresnan.com...



  4. #4
    John Deer's Avatar
    John Deer Guest

    Default LOTS of false color on Orion 100mm APO

    Is this the telescope or spotting scope?
    Sounds like someone put in an achromat instead.

    JD

  5. #5
    brains's Avatar
    brains Guest

    Default LOTS of false color on Orion 100mm APO

    hi Doink
    you should always be carefull where you bye a telescope.


  6. #6
    brains's Avatar
    brains Guest

    Default LOTS of false color on Orion 100mm APO

    hi doink
    where did you friend by the telescope.


  7. #7
    offaxis2@lycos.com's Avatar
    offaxis2@lycos.com Guest

    Default LOTS of false color on Orion 100mm APO

    Your troll stinks more than your breath!


  8. #8
    jonisaacs@aol.com's Avatar
    jonisaacs@aol.com Guest

    Default LOTS of false color on Orion 100mm APO

    Doink:

    Long time S.A.A. contributor Clive Gibbons has one of these and has
    discussed it on the Cloudy Nights forums quite extensively, including
    doing a comparison with his Questar 3.5 inch, (the ED100 seemed to be
    the clear winner.) Clive as well as everyoen else I have read seems to
    give this scope high marks so I think you need to let Orion replace
    your current scope with a decent one.

    jon


  9. #9
    Howard Lester's Avatar
    Howard Lester Guest

    Default LOTS of false color on Orion 100mm APO


    "brains" wrote




    This guy calls himself "brains"....




  10. #10
    Doink's Avatar
    Doink Guest

    Default LOTS of false color on Orion 100mm APO

    He bought it from Orion----but it was one of their "seconds". He doesn't
    know enough to know that the view really is lousy. I see it as awful.
    Should I even tell him?

    Doink
    "brains" <dn_cns1b05@yahoo.co.uk> wrote in message
    news:1125487262.606128.144490@g43g2000cwa.googlegr oups.com...



 

 
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