Archived posting to the
Leica Users Group, 2000/11/16
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Subject: Re: [Leica] UV filter for Noctilux-measurable light loss??
From: Mark Rabiner <mark@rabiner.cncoffice.com>
Date: Thu, 16 Nov 2000 14:31:11 -0800
References: <5.0.0.25.2.20001116085023.01ed9560@127.0.0.1> <5.0.0.25.2.20001116085023.01ed9560@127.0.0.1> <5.0.0.25.2.20001116131519.01e8a250@127.0.0.1> <3A144F17.A6D7D0FF@pce.net>
><Snip>
> Anyone else have any thoughts on whether a UV filter cuts out a measurable amount of light?
>
> Regards,
>
> Rob McElroy
It never occurred to me that it would but come to mention it in very low light
levels I could see how i COULD have an effect.
On a bright day if the UV filter takes out 1 unit of light out of a few hundred
units the effect is negligible.
In a coal mine at midnight with one candle off in another part of the cave you
have only 5 units of light to work with.
You don't want to loose one.
Could that be true? Seems like it would be.
mark rabiner
:)
http://spokenword.to/rabiner/
Replies:
Reply from Nicholas Poole <nick.botton@camphill.org.uk> (Re: [Leica] UV filter for Noctilux-measurable light loss??)
In reply to:
Message from Tina Manley <images@InfoAve.Net> (Re: [Leica] UV filter for Noctilux)
Message from Tina Manley <images@InfoAve.Net> (Re: [Leica] UV filter for Noctilux)
Message from Tina Manley <images@InfoAve.Net> (Re: [Leica] UV filter for Noctilux)
Message from Rob McElroy <idag@pce.net> (Re: [Leica] UV filter for Noctilux-measurable light loss??)