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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