Anyone use a Vixen R200SS?

From: Paul Sterngold (psterngold@No-Spam)
Date: Thu Jul 10 2003 - 12:29:47 MST

  • Next message: John R Pierce: "Re: Bolide over South Bay?"

    I recently acquired a secondhand coma corrector for my Vixen R200SS, and
    it doesn't seem to do a whole lotta good. Although some coma is cut down
    in the periphery of the field, star images near the center actually
    appear bloated (although symmetrical).

    I noticed that the retaining ring seems to have been tampered with. I'm
    wondering if an element is not seated properly or is backward. If anyone
    here has one of these correctors, I'd like to know how it performs and
    how the lens elements are oriented. Thanks.

    Cheers,
    Paul Sterngold

    __________________________________
    Do you Yahoo!?
    SBC Yahoo! DSL - Now only $29.95 per month!
    http://sbc.yahoo.com

    The Astronomy Connection -- Mailing List Archives