NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: The "big" sextant manufactures
From: Alexandre Eremenko
Date: 2007 Oct 25, 16:13 -0400
From: Alexandre Eremenko
Date: 2007 Oct 25, 16:13 -0400
Fred, > Just like a prism scope, even with a > traditional split-horizon mirror, > they show a complete image across > the VOF using only half the objective, > essentially just like a whole- > horizon mirror. Exactly. My SNO has a similar scope. I was even puzzled first: why people need the stupid full-view mirror which absorbs 1/2 of the light? I tried to convince Ken (of Astra/Celestaire) to make a similar scope for Astra; he does not listen. > Most sextants have cheap Galilean > scopes that don't behave this way. Yes. And most people just don't know what a good sextant scope is, because they had no opportunity to try. Alex. --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
