Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Add Images & Files
    Re: Smart Phone CN
    From: Greg Rudzinski
    Date: 2020 Mar 3, 07:47 -0800

    Attached is a first calibration effort for the Samsung 5 mp camera in pro mode. Pro mode allows for fixing focus at infinity by holding a finger down over a distant area of sky.  The wide angle is extensive and offers 50° of practical use. Now it is off  to the beach for practical trials. Anticipating 4 moa precision for high altitudes and 2 moa precision for low altitudes. If repeatability is confirmed then the Samsung gets added to the onboard CN tool kit. Filtering the Sun is a bit fiddly. To do this I hold the cell phone upside down with the camera lens low then hold a piece of solar film over the Sun. Image is snapped with a press of the thumb.

    Greg Rudzinski


    Browse Files

    Drop Files


    What is NavList?

    Join NavList

    (please, no nicknames or handles)
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.

    Email Settings

    Posting Code:

    Custom Index

    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site