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: Cannot focus sextant telescopes
    From: Stephen Wawrzyniec
    Date: 2016 Aug 2, 13:35 -0700

    A and B are not eyepieces they are objective lenses, c and d are eyepieces one tube must slide into the other to focus them. The eyepiece with the smaller lens is higher power, the thing threaded on both ends is probably a multiplier which gives two eyepieces two more magnifications to work with. The flat brace thing with the hole, probably is used to replace an objective lens on its tube?? that way it could be used as just an open tube for daylight use when no magnification is required. It takes an objective and an eyepiece to make a telescope..... :)

    Let me know how it turns out.

    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