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July 2008 It is great to compare solargraphs with document photographs
 

Diego Lopez Calvin send me a document photograph of the view in front of the can he has fastened in Valonsadero, Soria, Spain. The exposure was from 17 February to 3 July 2008. Compare the solargraph to the panorama photographed by Diego.

 

_a2f0635bote-tt-pico-frentesweb

panorama-pico-frentes-camara-tt02web

 

 

 

 

pico-frentes-2-posit300web 

 

   

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Pinhole Size

By: Tarja Trygg () on 06:59 04-03-2009

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Pinhole Size

By: Tarja Trygg on 06:59 04-03-2009

For example an embroidery needle works very well. 
Pinhole Size Calculator can be found on the Net here: http://www.mrpinhole.com/ holesize.php 
Determing Pinhole Size and Exposure can be read: http://ca.geocities.com/ penate@rogers.com/pinsize.htm

 

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new

By: Odile Donis () on 09:35 13-01-2009

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By: Odile Donis on 09:35 13-01-2009

This absolutely amazing. Stimulates new interest in pinhole photo. How can you make a hole so small so exposure will be accurate over such a long time?

 

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