NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Sextant accuracy (was : Plumb-line horizon vs. geocentric horizon)
From: Peter Fogg
Date: 2005 Feb 24, 08:37 +1100
From: Peter Fogg
Date: 2005 Feb 24, 08:37 +1100
From: Jared Sherman "I'm still not certain that you can focus a picture after it has been taken, and get THE SAME result as having focused it before." No. Increasing edge contrast won't affect focus. An image perfectly focused can be defined as having all its rays of light coinciding at the same plane.
