Archived posting to the Leica Users Group, 2001/04/05
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 04:02 PM 4/5/01 -0700, Mark Rabiner wrote: >Tom Schofield wrote: >> >> The focal length of the body-cap pinhole device is, obviously, dependent on >> lens flange to film plane distance, which is about 30mm for the M mount >> version, and the SLR models are longer focal length. So, if you are looking >> for the traditional wide angle pinhole look, the M version is the way to go. >> >> Tom S. >> I think they used a Matel computer to do the ray tracing... No coma or astigmatism. Lots of diffraction. Tons of diffraction. Hell, it's all diffraction. You get the rays that make it through without hitting the wall. And still looks like a pinhole image! I want a multicoated T* pinhole lens cap. Jim