Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site brl-tgr.ARPA Path: utzoo!watmath!clyde!burl!ulysses!mhuxj!houxm!ihnp4!zehntel!hplabs!hao!seismo!brl-tgr!jcp From: jcp@brl-tgr.ARPA (Joe Pistritto) Newsgroups: net.rec.photo Subject: Re: Cold Weather Photography Message-ID: <4845@brl-tgr.ARPA> Date: Sun, 23-Sep-84 23:29:33 EDT Article-I.D.: brl-tgr.4845 Posted: Sun Sep 23 23:29:33 1984 Date-Received: Wed, 26-Sep-84 06:07:58 EDT References: <486@hou2d.UUCP> Organization: Ballistics Research Lab Lines: 27 My experience with cold weather stems from two area, taking shots outdoors in New England winters (0 to -10F), and a short stint on the North Slope of Alaska (-40F to -20F). In all cases I used a 35mm camera, taking slide film (usually Ektachrome 64, my standard garden variety slide film). The only major problem I had was lense fogging up when I came inside from the outside cold air. After a while, I learned to leave my camera in a cool dry area (above freezing, but not much), for a while before and after exiting into the sub-zero stuff. Also, I used a UV(0) filter at all times on my lenses, and *this is important* I INSTALLED the filters on the lenses outside in below freezing temps. (This makes the air between the lense and the filter low-humidity air, preventing ice-fog on the inside of the filter, this was a BIG problem in Alaska with the humidified buildings and the exterior -40F temps. Fortunately, I thought of it before going, and remembered to remove all my lense filters and re-install them immediately after arriving on-site. I DIDN'T TOUCH them after that, (particularly inside). I have heard that instant-print cameras don't work at all well below freezing. (the chemical reactions to make the prints are slowed dramatically by cold, (although SX-70 film will still develop at 25F or so, it just takes like 10 minutes to do so). Below that, I suspect the chemicals in the film may freeze, destroying it. The trick of holding the camera inside your jacket and the popping it out to take a shot is *BAD* because the lense will usually fog up due to the humidity near your body. -JCP-