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Scoop.it!
What is a raw file? Shooting raw format can transform the quality of your photos, and in this tutorial we explain the pros and cons you need to be aware of. Via Ana Cristina Pratas 
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"La photo numérique, ça s’apprend! Stéphane Noël (professeur à l’Ecole de Recherche Graphique, Bruxelles) propose sur son site Internet un cours complet d’initiation à l’image numérique. Cette formation (sous licence Creative Commons) destinée à des étudiants présente des infos sur la technologie des appareils numériques, des bases historiques (aspect technique et aspect historique), des exercices, une présentation de photographes de renom et des liens vers des ressources complémentaires. (...)" Via NetPublic
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JPEG est devenu synonyme de photo numérique, tellement ce format est utilisé. Il n'est pas un appareil qui ne propose d'enregistrer ses clichés en JPEG et pourtant, ce format est techniquement mauvais.
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HISTOIRE - La plupart des photos datant de la Seconde Guerre mondiale sont en noir et blanc. Mais certaines, rares, ont été prises en couleur, notamment celles commandées par le gouvernement américain. Via Laurent Blanquer
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Terheck's insight:
Un logiciel open source performant pour faire de la retouche photo
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"New to photo editing and only want to crop and remove red eyes from images? Then try a simple (and free!) software like Picasa. But if you're ready for something slightly more advanced, read on to learn the basics of Photoshop. The program's robust editing capabilities make the possibilities limitless, so don't let its numerous strangely labeled buttons and windows intimidate you. (Lasso tool? What?)
Before you really begin trying to learn how to use the program, take some time and mess around with some of the tools. Trial and error is the best way to learn. Those little icons on the right hand side are your weapons in the battle against boring photos, so get to know what they look like and what they do..."
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These are the most photographed places in the world according to Google Maps' Panoramio service. Of course, many people take photos and don't upload them to Google Maps but to other local services. Still, it's a very neat map.
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Exposure is a critical element that determines what is actually recorded on film or the image sensor. There are three adjustable elements that control the exposure - ISO, Aperture and Shutter Speed.
Terheck's insight:
Un peu hors sujet, mais très intéressant : Understanding Exposure - ISO, Aperture and Shutter Speed Explained
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