From: Gordon J. Holtslander (holtsg@duke.usask.ca)
Date: 06/06/01-06:06:43 PM Z
Hi:
If its any help years ago I did a lot of lens camera urban night shots.
Buildings lit by street light. I was able to use a standard exposure of 4
minutes at f32 shooting 4x5 tri-x rated at 320.
It may depend on the lights used by your city. The ones here seemed very
consistent.
Maybe you can convert this to pinhole.
These shots look great printed in cynotype
> >Hi Folks,
> >
> >I have a student bent on making pinhole photos at night. If this wasn't a
> >project due in two weeks, I'd be more optimistic, but he insists this is his
> >best idea. So I've gotten some 11X14 HP5 film for his camera -- which
> >does make
> >very good pinhole images (during the day). I know he will have reciprocity
> >failure, but how much extra time at (approx.) f/180 will he need to
> >adjust. He's
> >smartly working on alleyways which are pretty well lit, he also has a decent
> >meter (a Luna Six I think). I've guessed he needs an exposure of 1.5 hours,
> >without pushing the film. This comes from a dusty spot in my brain when I used
> >to make nighttime images with the same film and adjusting for the (TINY!)
> >pinhole aperture.
> >
> >Anybody out there have any real world experience with this type of situation?
> >
> >-- Darryl Baird
>
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Gordon J. Holtslander Dept. of Biology
holtsg@duke.usask.ca 112 Science Place
http://duke.usask.ca/~holtsg University of Saskatchewan
Tel (306) 966-4433 Saskatoon, Saskatchewan
Fax (306) 966-4461 Canada S7N 5E2
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