Welcome to the NavList Message Boards.

NavList:

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

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    Name or NavList Code:
    Email:
       
    Reply
    Point and Shoot Camera CN Revisited
    From: Greg Rudzinski
    Date: 2015 Jan 7, 11:17 -0800

    A revisit to my first unsuccessful efforts (8 years or so ago) at point and shoot camera CN using a Canon Powershot 10MP has me thinking that there may be a way to bring this type of affordable camera into the relm of practical CN. The still image settings offer three focus options. The infinity setting is the correct setting that will allow this inexpensive pocket camera to double as a useful sextant.  An artifitial horizon will be used for calibration observations to construct a table of minutes of arc per pixel at various pixel counts. Lightroom 5/Paint software works well for processing images and counting pixels. Solar film taped across half the lens does a good job for filtering the Sun.

    Greg Rudzinski



    File:



    File:



    File:



       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Get a NavList ID Code

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

    A NavList ID Code guarantees your identity in NavList posts and allows faster posting of messages.

    Retrieve a NavList ID Code

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

    Email Settings

    NavList ID Code:

    Custom Index

    Subject:
    Author:
    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