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
    Re: Curious sextant add-on
    From: Gary LaPook
    Date: 2020 Oct 21, 14:06 -0700

    You have a night vision scope. The small device on the top is the illuminator that sends out some infrared light for use with low ambient light.

    The eyepiece is the eyepiece. 

    At the opposite end of that tube is the large ring with  pinhole in the center. That is the objective lense of the scope. The ring with the pinhole is just a cap to keep too much light entering if you are looking through in daylight. You remove that cap for use in the dark.

    gl

       
    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