Well, I got mine in a little welding supply shop in Cold Lake Alberta but
I'm sure there are closer places than that. It was actually a nation-wide
chain called Acklands and I believe they are in Ottawa as well.
Rick
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-----Original Message-----
From: r.prevost@... [mailto:r.prevost@...]
Sent: Thursday, 29 March 2001 17:48
To: OAFs@...
Subject: [OAFs] Re: Larger Solar Spot...
--- In OAFs@y..., "Wagner,Rick [CIS-ADS]" <rick.wagner@e...> wrote:
Sure it's safe. I have a 2x4" welder's glass which I use in front
of my 9x21 binos for quick checks of the sun. A telescope/binocular
can't concentrate the light to any greater intensity than that which
is coming into the objective. Therefore anything which is safe to
look through with the naked eye is also safe in front of the
objective.
I'm glad to know that. Better safe than sorry. You explanation makes
sense -- the light is already at a safe level before entering your
binoculars.
Thanks Rick!
Where does on get welder's glass anyway?
Rol
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