NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Using a theodolite as a (solar) sextant
From: Mike L
Date: 2008 Feb 15, 12:39 -0800
From: Mike L
Date: 2008 Feb 15, 12:39 -0800
Thomas, thank you very much for the link. It is useful in two ways: 1. it tells me that such a device exists and is worth looking for, and 2. It tells me what it is called so I've a good chance of finding someone who sells them! Mike On Feb 14, 6:32 pm, Thomas Kleemannwrote: > Isonomia schrieb: > > > > > Is there any optics I can buy to put on the front of the telescope to > > view at 90degree? > > There are prisms for that special need. > I saw one recently. > Please have a look at ebay.de > Article number 370022965721 : > > http://cgi.ebay.de/Carl-Zeiss-Steilsichtprisma-Eyepiece-Prism-Theodol... > > HTH, > Thomas. --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---