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    Re: Waves and Dip
    From: Michael Cain
    Date: 2019 Dec 11, 13:14 -0800

    Hi Mike,

    Frank answered your question re: dip. (And I thank him for the education he gave me with his answer.)  As for differences in refraction, in comparing my 2019 and 1993 NAs p A4, there are differences throughout the chart, though the largest I notice at casual glance seems to be .4' (with most appearing to be .1').

    Cheers,

    Mike 

    Michael Cain

       
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