Re: lighting- nature's flash bulb

OK

From Photographic Facts & Formulas, On exposures using the full moon as the only light
source:

A basis for trial might be 5 minutes for an open landscape, at f 8 with an emulsion of ASA
32. The half full moon gives only a 10th as much light as the full moon.

It also mentions that the moon will move during an exposure - it moves a distance of it own
diameter every two minutes

Gord

On Wed, Jun 26, 2002 at 11:24:42AM -0600, Gordon Holtslander wrote:
>
>
> Hi:
>
> I used to take lightning shots with a lens camera. It just put my camera out stopped it
> down and hoped lightning would happen during the exposure.
>
> With a pinhole camera the exposure time would be much longer which would translate into a
> bigger opportunity that lightning would occur during the exposure.
>
> I don't think you could use lightning to illuminate the photo - unless you were in the near
> vicinity of where it strikes - I don't think that would be very safe :)
>
> I used the ambient lighting - usually shot in the city so that street lights would provide
> most of the illumination.
>
> I think I have some recommended exposures for moonlight - I'll look them up.
>
> Gord
>
> On Wed, Jun 26, 2002 at 02:43:32AM -0400, chad white wrote:
> > Date: Wed, 26 Jun 2002 02:43:32 -0400
> > From: chad white <chadwhite@mac.com>
> > Subject: [pinhole-discussion] lighting- nature's flash bulb
> > To: pinhole-discussion@pinhole.com
> >
> > i tried to take pinhole images of objects only using lighting flashes.
> > i would like to be about to predict how many flashes i need. they seem
> > pretty bright and must at least equal day light. . any one know how to
> > work with natures flash? what about the moon? i would look for these
> > on the internet but i can never seem to find anything i need quickly.
> > maybe i need a new search engine.
> >
> > i replaced the lens from my webcam with a small pinhole and it work ok.
> > The image was a little blurry but i have a feeling that i just didn't
> > make that "perfect pinhole".
> >
> >
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Received on Wed Jun 26 16:17:51 2002