U of S | Mailing List Archive | alt-photo-process-l | Re: Astronomy Pinhole Picture of the Day

Re: Astronomy Pinhole Picture of the Day

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  • Subject: Re: Astronomy Pinhole Picture of the Day
  • From: Andy D Duncan <duncanad45@gmail.com>
  • Date: Tue, 27 Jan 2009 14:26:39 -0700
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The scan doesn't affect the "negative" because the light from the scan is just week enough and the pass is just short enough that the print is unaffected. 


On Jan 27, 2009, at 12:44 PM, Ron Flory <RFlory@mulkeyinc.com> wrote:

Thanks for the weblog link.  Okay, stupid question but I must ask:

 

Everything makes sense except the scanning… The paper neg is thus exposed to bright light as it’s being scanned.  What if anything does this do to the neg??

 

From: Robert Young [mailto:rwybeaker@hotmail.com]
Sent: Tuesday, January 27, 2009 12:53 PM
To: alt-photo-process-l@usask.ca
Subject: RE: Astronomy Pinhole Picture of the Day

 


> 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

Should also have mentioned this link (mine) :

http://rwyoung.wordpress.com/2008/03/19/long-exposure/

Rob