Archived posting to the Leica Users Group, 2000/07/16

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Subject: Re: [Leica] WAS; UV filter and 21mm now 15 mm!
From: Ted Grant <tedgrant@home.com>
Date: Sun, 16 Jul 2000 11:18:03 -0700
References: <NBBBIDNIGLFOKNLJCPLHKEEJDNAA.ddh@home.com>

Dan Honemann wrote:

> Well, here's a different take on the uv protection debate: what are the
> effects of uv rays on the eye that is viewing through an SLR with a
> telephoto lens attached (assuming the eye is not otherwise protected by
> eyeglasses or sunglasses)?  Could the uv filter help protect the eye from
> damaging uv rays?<<<<<<<<<<<<<<

Hi Dan,
Considering the "EYE" importance of this question, may I suggest we wait
for one of the LUG Ophthalmologist's who can answer the question in a
professional medical manner.

Better that,  than someone winging an answer as to "what they think it
is"  that might not be correct.   I can't ever reading or hearing
discussion on this kind of question long before the LUG nor in any posts.

Be an interesting answer,  as I've experienced great discomfort looking
through the camera while shooting  "arc welders working."  Suffered eye
burn, even though I only looked at the scene through the lens/viewfinder
of a Leicaflex SL.  there wasn't any direct eye contact other than
through the viewfinder.  Like three days with eyes covered and in
darkness!  One might say a very stressful  three days indeed! :-( 
Particularly for a one eyed photojournalist.

So in the case of the UV through the lens/viewfinder,  we unknowingly
maybe doing damage without realizing it. Although I doubt it, simply
because I'm sure we'd be aware of it long before now.  But ?

Over to the Ophthalmologists!

ted

In reply to: Message from "Dan Honemann" <ddh@home.com> (RE: [Leica] WAS; UV filter and 21mm now 15 mm!)