http://www.withoutlenses.com/person/10399 Thu, 13 Dec 2007 23:47:49 GMT Comments by kathia Alsina <p>Good article Earl; I build my own 4&#215;5 few months ago, and I have problems measuring the pinholes. In fact when I try to convert from the pinhole size to F/stop. Can you give a hand on this?</p> <p>thanks , kathia</p> http://www.withoutlenses.com/view/how-to-build-a-4x5#content_14051 http://www.withoutlenses.com/view/how-to-build-a-4x5#content_14051 Thu, 13 Dec 2007 23:47:49 GMT kathia Alsina