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Pedres i regalims / Heaps of stone

Un raconet del rec de Colobrers, un lloc tant bonic i tranquil, que no sembla formar part de Sabadell.

 

Fa decades, segurament més de 50 anys, que la fotografía en plaques de vidre havia passat quasi completament a la historia. Només sembla que en quedava alguna producció puntual (Agfa?) per a fotografia científica especialitzada. L'altra opció, encara vigent però molt complicada és fer-se un mateix les plaques, però ja he vist que millor ni ficar-s'hi. Però fa un parell d'anys, un enginyer nord-americà, J. Lane, decidí vendre les plaques que es feia ell, amb tant d'exit, que s'ha establert l'unic (crec) proveidor de plaques de gelatinobromur del món. Les produeix en moltes mides, des de minuscules de format 35mm, fins a ultra-gran format, com "full plate" o més i tot. Aquestes plaques, lentissimes (ISO 2!!) requereixen generalment diversos segons d'exposició i només son sensibles a la llum blava, tal i com era la fotografia el 1880.

 

Foto realitzada sobre placa de gelatinobromur J. Lane Dry Plate de 9x12 cm., amb una càmera Ernemann Heag I fabricada entorn 1909-1922. Revelat en safata amb HC110.

 

ca.wikipedia.org/wiki/Gelatinobromur

 

www.pictoriographica.com/about.html

 

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This is the Colobrers stream (rec de Colobrers), a quiet secluded corner outside my hometown, Sabadell. Colobrers means "place of snakes".

 

For decades, probably more than 50 years ago, dry plate photography had gone almost completely into "old" history. It only seems that there was some limited and expensive production (Agfa?) for specialized scientific photography. The other option, very complex is to make the plates yourself, but better not to try. A couple of years ago, an American optical engineer, J. Lane, decided to sell the dry plates he had already made, with such success, that he has established the only (I believe) supplier of dry plates in the World. He produces them in many sizes, from minuscule 35mm format, to ultra-large formats, such as "full plate" or more. These plates, very slow (ISO 2!) generally require several seconds of exposure and are only sensitive to blue light, as was photography in 1880.

 

Picture taken on a 9x12 cm. J. Lane Dry Plate, with a Ernemann Heag I camera, manufactured around 1909-1922. Tray developed with HC110.

 

www.pictoriographica.com/about.html

 

en.wikipedia.org/wiki/Dry_plate

 

 

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Uploaded on April 10, 2019
Taken on March 19, 2019