Archived posting to the Leica Users Group, 2001/02/16

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Subject: RE: [Leica] photography at altitude
From: "Lee, Jonathan" <Jonathan.Lee@hrcc.on.ca>
Date: Fri, 16 Feb 2001 12:27:22 -0500

Thanks for the info.  

Finally I have a use for my unused UVA filter! I can stick it on my
8-element 1st version 35 Summicron.

Jonathan
- -----Original Message-----
From: Doug Herr [mailto:telyt@earthlink.net]
Sent: Friday, February 16, 2001 11:42 AM
To: leica-users@mejac.palo-alto.ca.us
Subject: Re: [Leica] photography at altitude


On Fri, 16 February 2001, "Lee, Jonathan" wrote:

> 
> Guys,
> 
> I'm off for some skiing at Banff (elevation 5000-8500ft).  Is there enough
> UV at these altitudes to make a UV filter more than just optional?

Assuming you're using a Leica lens made in the last 30 years, no, not even
at 14,000 feet.

> In case
> the meter goes belly up, does the sunny f16 rule change appreciably at
these
> altitudes? 

I think the snow will be a much bigger influence than altitude will.
 

Doug Herr
Birdman of Sacramento
http://www.wildlightphoto.com
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