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    Re: Freiberger sextant with prism
    From: Paul Bedel
    Date: 2022 May 24, 08:54 -0700

    Yes, not easy at all to shoot the sun in the back and the horizon in front with the pentaprism. But, I'll try to think carefully to this question.

    In fact, the pentaprism is first fitted to measure horizontal angle > 90° between two landmarks.

    Regards. Paul. 

       
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