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: Sextant 1090 International - Never Used
    From: Frank Reed
    Date: 2012 May 15, 07:55 -0700

    The filters, as Gary has already noted, are polarizing filters. These include one neutral density filter as a "base" level and then a pair of crossed polaroids. One of the polarizers can be rotated which lets you "dial in" exactly the amount of shade you need for a particular sight. It sounds great in principle, but in practice a set of four standard filters is really just as good. Polarizing filters became popular during the Second World War. For example, I have a USN Mk. II sextant with polarizing filters. Many of these "Tamayalikes" also had polarizing filters, but they never really caught on. They're a nice novelty.


    NavList message boards and member settings: www.fer3.com/NavList
    Members may optionally receive posts by email.
    To cancel email delivery, send a message to NoMail[at]fer3.com

    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