Re: Astronomy Pinhole Picture of the Day
- To: alt-photo-process-l@usask.ca
- Subject: Re: Astronomy Pinhole Picture of the Day
- From: Andy Duncan <duncanad45@gmail.com>
- Date: Tue, 27 Jan 2009 10:33:50 -0700
- Comments: "alt-photo-process mailing list"
- Delivered-to: alt-photo-process-l-archive@www.usask.ca
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He didn't use a ND filter at all. The image hasn't been developed.
No lets see if I can explain this in a logical manner.
Normal prints are exposed and then developed to bring the latent image
through in a chemical reaction. With enough time and with intense
light, an image will form on photographic paper, just like printing
out paper.
What the photographer has done here, is left his camera outside from
winter solstice to summer solstice, and through the 6 months, there
has been enough light gather to bring an image through. After the 6
months had passed, the photographer then simply scanned the image that
was on the paper.
Andy Duncan
—————————————————————
Andy D Duncan
208.227.6187
www.andydduncan.com/blog
On Jan 27, 2009, at 9:59 AM, Jon Lybrook wrote:
6 month exposure. The photographer must have used a lead plate as
an ND filter.
http://antwrp.gsfc.nasa.gov/apod/ap090115.html
--
Jon Lybrook
Intaglio Editions
http://intaglioeditions.com
303-818-5187