[An earlier version of this article was available at photo.net in the USA 1996–2016. An abridged Russian version: Камера-обскура. The Russian version is also available as a pdf file. The history section has been translated into Spanish, and slightly abridged also into Portuguese: Stenoptik – A Optica Estenopéica. Major parts have been translated into Polish.] … Continue reading Pinhole Photography – History, Images, Cameras, Formulas