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
    or...
       
    Reply
    Re: C.Plath on Ebay
    From: Alexandre Eremenko
    Date: 2005 Jun 10, 02:05 -0500

    Yes, of course.
    This picture could be used in a beginner's
    textbook to explain what is "collimation error":-)
    Modern sextant scopes (for the reasons that excape me)
    do not have collimation error adjustment,
    with one exception: the inverting scope of SNO-T.
    Once Bill suggested to adjust collimation error
    with a hammer...
    
    This is apparently what the owner of this sextant did,
    and after he failed, he sells the sextant:-)
    
    Alex.
    
    On Thu, 9 Jun 2005, Robert Eno wrote:
    
    > Have a look at this sextant on e-bay.
    >
    > Are my eyes deceiving me or is the rising piece on the scope bent out of shape?
    >
    > http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&category=37971&item=7328115519&rd=1
    >
    
    
    

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join NavList

    Name:
    (please, no nicknames or handles)
    Email:
    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:

    Email Settings

    Posting 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