John
Long exposures, tungsten film, mechanical camera, good light meter -
Lunasix for instance will give long exposure readings.
If time is limited, go down beforehand if possible and take some
readings.
Ask if you can borrow some of the battery powered safety lights (hat
and belt units) perhaps for additional light.
They aren't powerful but will give some spotlighting.
Doesn't look like you'll be able to do much more than 'dark and
moody' shots.
You won't be able to light up a whole gallery so go for the
claustrophobic stuff.
Andrew Fildes
afildes@xxxxxxxxxxxxx
On 11/10/2007, at 4:05 AM, Geilfuss Charles wrote:
> Perhaps if you knew the wattage of the existing lights, the
> average width of the mine passage and distance between lights it
> may be
> possible to estimate the needed exposure. There must be some
> formula to
> use if you know the output of the light source and the area of the
> illuminated space. Of course I'm only good for the theoretical
> work; the
> number crunching would have to be done by someone else. ;^)
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