Jimmy Cornell - World Cruising Routes World Cruising Routes by Jimmy Cornell

      

Other books by Jimmy Cornell
| Home | Mailing Lists | Bookstore | Weather | Tide Predictions | Bowditch |

Re: Blish prism


Subject: Re: Blish prism
From: Roger M. Derby (derbyrm@XXX.XXX)
Date: Thu Jul 13 2000 - 17:01:08 EDT


They're at http://www.edmundscientific.com/

Didn't you just describe the standard prism from an old pair of binoculars?

Roger

----- Original Message -----
From: "Paul Hirose" <71202.2014@XXX.XXX>
To: <NAVIGATION-L@XXX.XXX>
Sent: Thursday, July 13, 2000 3:09 AM
Subject: [NAV-L] Blish prism

> Here in the U.S., Edmund Scientific has been selling optics (surplus
> and new) to experimenters since the 1940s. I'm pretty sure I've seen
> in their catalog a prism of the type George Huxtable mentioned, i.e.,
> turns the line of sight 180 degrees and offsets it laterally some
> considerable distance.
>
> They surely have a Web site, though I don't know the URL. A search
> should turn it up easily, though.
>





| Home | Mailing Lists | Bookstore | Weather | Tide Predictions | Bowditch | Trawlerworld |