Camera Obscura | Then and Now

How I See It

📷 This post was published over two years ago. Broken links prompted a re-post.

obscura Brunelleschi’s Duomo, Florence | 17th Century | Library of Congress

The Camera Obscura technique has been with us for much longer than photography. The principle is that of a pinhole camera.

The device consists of a box or room with a hole in one side. Light from an external scene passes through the hole and strikes a surface inside where it is reproduced, upside-down, but with color and perspective preserved.
diagram
The image can be projected onto paper, and can then be traced to produce a highly accurate representation. The first camera obscura was later built by an Iraqi scientist named Abu Ali Al-Hasan Ibn al-Haytham, born in Basra (965-1039 AD), known in the West as Alhacen or Alhazen, who carried out practical experiments on optics in his Book of Optics

Today’s modern camera equipment adds…

View original post 425 more words

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