----- Original Message ----- From: "Philippe Monnoyer" <monno...@imec.be> > > I still have to read the interesting paper. > So if my optimal pinhole diameter for a 100 mm FL is 0.36 mm, this means > that my 24x30 cm film will record an image where every point will have a > blur of 0.36 mm. So it is impossible to have sharp detail with pinhole > photography ? Isn' it ?
Yes it is, and there are many samples out there in ciberspace to confirm that. In Renner's book there is 1 image, as a matter of fact, that is as -perhaps- sharp as pinhole can get. When you read the paper, you'll see that you can get a resolution equal to 1.5 times what 0.36 give you. 0.36 give you 2.78 image points per mm, actual resolution would then be 2.78x1.5 or 4 lpmm, which when viewed at a confortable distance of vision (13" or so) should look reasonable "sharp" (notice the sharp is under quotations mark). Guillermo
