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    Re: Lunar distance measurement in ideal conditions: attainable accuracy.
    From: Norm Goldblatt
    Date: 2013 Jan 16, 11:07 -0800

    http://www.scopestuff.com/ss_telr4.gif
    This is the way the stargazers do it. Direct vision with reticle imaged at infinity, but maybe this is overkill
    Has anyone tried using both eyes? One thru the scope and one directly at sky? For some reason, this seems to help.

    or, rather than removing scope, a couple of alignment pins atop the scope body would work. lateral displacement will not affect aiming. Of course the pins will be out of focus if you're accomodated at infinity, and in dim light, with pupils dileted, the depth of visual field is reduced.
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