Led Lenser Torches for night birding

To:	"" <>, "" <>
Subject:	Led Lenser Torches for night birding
From:	Peter Shute <>
Date:	Sun, 20 May 2012 14:17:39 +1000

I'm equally interested in the warning that these torches can damage human 
eyesight. Is it true, and from what distance? Is it any less true of 
traditional powerful torches?

I imagine the warning might apply to people shining it into their own eyes from 
close up, but surely the danger diminishes further away.

Peter Shute


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