Re: [APML] Speeding up film with cold weather

[Mark Bohrer <lurchl@ix.netcom.com>]

Using Ektachrome ISO 100 slide film at 5AM in Monument Valley a few years 
ago, I noticed no difference in exposure at ~20 degrees F versus shots 
taken above freezing. I've never noticed a difference in winter photography 
in general, either. A lot of photographers would be up a creek if film 
speed varied with temperature the way you describe.

Cold temps may buy you less dark noise with CCD-based cameras, but that's it.


>Hi all,
>
>I know this is not a new concept (cold cameras). I
>remember reading in Splendors Of The Universe that
>film speed effectivly doubles when the temperature
>drops below freezing. I have never really noticed
>this, but am working on new pictures that I can
>compare to pictures I took last month when the weather
>was warmer.
>
>I would like to hear if any of you have ever checked
>this out and done comparisons for yourself. Is this a
>real or imagined effect?
>
>Thanks,
>Alan
>

Mark Bohrer
www.kokophoto.com
Pro mountain bike racing on the web


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