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    Re: camera sextant?
    From: George Huxtable
    Date: 2010 Jul 8, 13:48 +0100

    Marcel and I, between us, are making somewhat heavy weather of this
    question of distortion of sky angles in a camera image, and it seems to be
    that these arguments still have some way to run. But I am heartened by
    Marcel's note of 7 July, in which he appears to be acknowledging to Greg
    that he now accepts the result of the analysis: that what he describes as
    the "calibration function" must have some sort of quadratic form.
    Although this argument seems to be providing a bit of enjoyment to its
    participants, and has some relevance to navigation, in regard to possible
    use of a camera, it may not be the sort of question to interest many
    Navlist members. I wonder, if Marcel and Greg agree, whether it might be
    the time to take it off-list, and deal with it backstage between the three
    of us. But if any other Navlist member (just one would do) is following the
    discussion, and sticks his hand up to ask for it to be kept on-list, I for
    one would go along with that request.
    contact George Huxtable, at  george@hux.me.uk
    or at +44 1865 820222 (from UK, 01865 820222)
    or at 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.

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