http://www.mapping-the-necklace.org.uk/node/200 Through a Pinhole en http://www.mapping-the-necklace.org.uk/node/102 <p>A pinhole camera is a camera without a conventional glass lens. An extremely small hole in a very thin material can focus light by confining all rays from a scene through a single point. In order to produce a reasonably clear image, the aperture has to be a small pinhole on the order of 0.5 mm (0.02 inches) or less. The shutter of a pinhole camera usually consists of a hand operated flap of some light-proof material to cover and uncover the pinhole. Pinhole cameras require much longer exposure times than conventional cameras because of the small aperture; typical exposure times can range from 5 seconds to hours or days.</p> <p>World pinhole day is on the last Sunday in April which is a week before Mapping the Necklace event (Website http://www.pinholeday.org/) Is there anybody who is interested in making the wierdest pinhole camera or just creating images in the Park?</p> <div class="og_rss_groups"><ul class="links"><li class="first last og_links"><a href="/node/200" class="og_links">Through a Pinhole</a></li> </ul></div> http://www.mapping-the-necklace.org.uk/node/102#comments Through a Pinhole photography Mon, 12 Feb 2007 10:37:45 -0600 Beth 102 at http://www.mapping-the-necklace.org.uk