Re: [APML] Speeding up film - examples

[George Anderson <georgea@cam.org>]

If the current weather pattern for Montreal holds and if I can knock
together one of Robert Reeve's film testing boxes in the next day or two
I should be able to test Provia at +20c, 0c, and -10c by the end of the
week. I'll cold soak the camera at the lower temps for at least two
hours prior to shooting. We went from summer to winter temps in less
than a week, if only we could have clear skies during the dark of the
moon. It is snowing right now...

George Anderson
Montreal Canada

Clear skies and good health

"John C. Mirtle" wrote:
> 
> OK - I have uploaded some images that show the effects of the cold on long
> exposures. Both shots are of Mars passing the Pleiades, back in Dec 1990.
> The shots are about a month apart, taken with a 6" f4.5 Newtonian, using 120
> format Ektachrome 400. The chilled shot is 1/3 the exposure time of the
> ambient, and easily records way more "stuff". Back in those days, Ektachrome
> had way more reciprocity failure than the current breed does, so the effect
> is more dramatic. You can see the images at
> http://members.shaw.ca/jmirtle/coldcam.htm , about 1/3 down the page. You
> may have to hit "reload" on your browser to see the changes...
> 
> >Understood. I'd still like to know if I am going to
> >see my shooting times shortened. I guess there's only
> >one way to find out for sure, but it needs to get as
> >cold as was a few days ago.
> 
> I don't know Alan, I would rather be shooting in a T-shirt and shorts and
> using dry ice to chill the film! All dressed up and looking like the
> Michelin Man while attempting to prevent various body parts from freezing to
> equipment is for the younger generation. I'm getting too old for that! As
> for which films work best in winter, the jury is still out....
> 
> John Mirtle
> Calgary, Ab. Canada
> 
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