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    Re: (Fwd) The Most Anomalous Refraction Yet or What ?
    From: George Huxtable
    Date: 2009 Aug 4, 18:46 +0100

    Greg Rudzinski wrote-
    
    "Even just the camera held to a single pane window surface and cocked
    slightly would create multiple reflections."
    
    Not if the glass itself has its surfaces parallel, in which case, for an
    object seen at infinity, the two images coalesce exactly, just as they do in
    the case of the two reflections from a back-silvered sextant mirror.. Such a
    displacement as Greg describes calls for some degree of "wedginess" between
    the surfaces.
    
    George.
    
    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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