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     áòèé÷ :: Filmscanners
Filmscanners mailing list archive (filmscanners@halftone.co.uk)

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filmscanners: Re: looking at the Sun



I'm sure others will chime in on this one, but I can't let that advice go 
unanswered. Just because the image in an SLR viewfinder is replected up 
through a pentaprism and a ground glass screen is no reason for 
complaisance about looking at the sun with such a camera. The efforts to 
make the screen view as bright as possible makes the light level in the 
eyepiece just about as dangerous as looking at the sun directly. True, 
there is some reduction, but in many cases, if not most, it is still bright 
enough to blind in a short time. Don't do it!
Of course, a sunset may have the light attenuated enough by the atmosphere 
to make it safe. But, if it is uncomfortable to look with the unaided eye, 
don't gamble on looking through the viewfinder of an SLR.

At 01:32 PM 02/03/2001 +0000, you wrote:
>In <5.0.2.1.0.20010131154337.00a149f0@pop.freeserve.net>, Stuart wrote:
>
> > But,of course ,no-one would do so while looking through the viewfinder as
> > this would be extremely detrimental to ones eyesight  and if the shutter
> > was released would it not burn the blind ??
> >
>I don't think this is true of SLR's, as the image is formed on the ground
>glass screen and then the eye at the viewfinder looks at that image rather
>than the sun itself. In a viewfinder camera this might be different, as
>there is no ground glass screen; you look straight through the viewfinder
>lens(es). Also the mirror in such a camera covers the shutter blind until
>the last second, after which the blind moves very fast, I doubt if it would
>be focused on the blind of film for long enough to have any effect.
>
>Brian Rumary, England
>
>http://freespace.virgin.net/brian.rumary/homepage.htm





 




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