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» Online Classroom   »   » Public Discussion of Cel Nav   » Horizon Mirror

   
Author Topic: Horizon Mirror
Paul


 - posted July 14, 2007 08:41 PM      Profile for Paul           Edit/Delete Post 
In looking at my horizon mirror, I see that there's about a 1 mm rough textured strip between the clear glass and the mirror. What's the story on that?
From: Muncie
David Burch


 - posted July 15, 2007 10:35 AM      Profile for David Burch           Edit/Delete Post 
can you tell me which brand and model sextant you are referring to. thanks.
From: Starpath, Seattle, WA
Paul


 - posted July 17, 2007 08:57 PM      Profile for Paul           Edit/Delete Post 
It's an Astra IIIB with the traditional mirror.
From: Muncie
David Burch


 - posted July 18, 2007 11:08 PM      Profile for David Burch           Edit/Delete Post 
We are still looking into this. I recall the issue from sometime in the past but need to rekindle that information. I vaguely recall that some folks have an actual optical argument for it, but it is certainly not shared by all manufacturers. Could also be an argument for protection of the edge, but this too is not universally shared. More soon...
From: Starpath, Seattle, WA


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