NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Horizon Shade Polariser
From: Geoffrey Kolbe
Date: 2016 May 8, 17:54 +0200
From: Geoffrey Kolbe
Date: 2016 May 8, 17:54 +0200
On 6 May 2016 at 19:53, Francis Upchurch <NoReply_Upchurch@fer3.com> wrote:
May I confirm that polarizing filters offer the same UV light/retina protection as standard filters?
Francis
Why are you concerned about the UV...?
Here are some typical curves from a manufacturer here in the UK
Seems to me that the UV is the one area of the spectrum that you need NOT be concerned about...
Geoffrey
