Nice and informative article. The mathematical formulae look a little scary, but I'm sure I could figure it out. I don't, unfortunately, have access to a flatbed scanner, I only have the other kind.
Very nice article. I'm tucking this away for future reference. Most everyone in class did either a salt shaker or oatmeal camera. I have the feeling I'm going to get a little carried away with this project, because I did the oatmeal in addition to 3differently sized/shaped cracker tins, and a paper box that will accommodate 11x14 papers. The chart you pointed out will be very useful, to me as well as my fellow students. Thanks. -----Original Message----- From: G.Penate [mailto:pen...@rogers.com] Sent: Friday, April 11, 2003 8:59 AM To: pinhole-discussion@p at ??????? Subject: Re: [pinhole-discussion] new to list/pinhole photography Shelley, Pinhole photography is in technical aspects not different than glass lens photography. Focal length, aperture (not aperture size), exposure, angle of view, light fall off at the edges of film, reciprocity corrections, etc., are all concepts that function the same whether the lens is a pinhole or a glass lens. Based on the above, it makes sense that the program have you doing pinhole in 102 rather than in 101 as the latter course (hopefully) included all of those concepts. If you do a google search you are going to find several sites that have tables with needle sizes and their diameters, George Smith's being one of them http://mywebpages.comcast.net/hmpi/Pinhole/Articles/Aperture/pin_aper.htm , but if I were you and had access to a flat bed scanner, I would use it to measure its actual size. This small article I wrote tells you how to achieve that: http://members.rogers.com/penate/diameter.htm Guillermo
