Comments on: Camera obscura in a U-Haul http://www.starchamber.com/2009/03/camera-obscura-in-a-u-haul.html Ned Gulley's Blog. Resident buzzwords: wise crowds, accelerated design, swarm robotics, synthetic biology. Fri, 10 Feb 2012 16:08:47 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Seth http://www.starchamber.com/2009/03/camera-obscura-in-a-u-haul.html/comment-page-1#comment-128540 Seth Fri, 20 Mar 2009 18:04:26 +0000 http://www.starchamber.com/?p=2699#comment-128540 When I was 14, I did photography like this using a pin hole camera and 8x10 photo paper in a cardboard box. Because the box was small (and I couldn't fit inside), it was a single exposure camera. It only worked on really bright days. I would go into the dark room, load the paper, then put something over the pin hole and head outside. I would set down the box (camera), point, and shoot (remove the pinhole cover for between 20 seconds and a minute). Then, it was back into the dark room to develop and then reload the box. I learned a lot of practical optics and physics that summer. The smaller the hole, the more crisp the image, the better the diffraction. The downside of the small hole was you need longer exposes to get the image. Of course, the image you get is also a negative, so it looks very different and unexpected when you finally develop it. Thanks for the reminder Ned, this brought me back. When I was 14, I did photography like this using a pin hole camera and 8×10 photo paper in a cardboard box. Because the box was small (and I couldn’t fit inside), it was a single exposure camera. It only worked on really bright days. I would go into the dark room, load the paper, then put something over the pin hole and head outside. I would set down the box (camera), point, and shoot (remove the pinhole cover for between 20 seconds and a minute). Then, it was back into the dark room to develop and then reload the box.

I learned a lot of practical optics and physics that summer. The smaller the hole, the more crisp the image, the better the diffraction. The downside of the small hole was you need longer exposes to get the image. Of course, the image you get is also a negative, so it looks very different and unexpected when you finally develop it. Thanks for the reminder Ned, this brought me back.

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