I'd guess that edge softness is a product of the fact that the plane of optimal sharpness is a hemisphere centered aroiund the hole, and the film plane is flat, transecting the optimal image best at the center, or if rounded, not rounded at the same radius. ----- Original Message ----- From: Simon Cygielski <si...@wbj.pl> To: <pinhole-discussion@p at ???????> Sent: Tuesday, February 27, 2001 3:56 AM Subject: [pinhole-discussion] couple of pictures
> Hi all, > I've uploaded a couple of my first efforts with my 6x17 cm panoramic > pinhole camera. They're up at > > http://www.p at ???????/discussion/upload/images/path1.jpg and > http://www.p at ???????/discussion/upload/images/phones2.jpg > > I built the camera out of a Holga using bookboard to expand it to its > present size. "Focal" length is 7.5 cm. Any comments would be > appreciated. > I also have a question: is the loss of sharpness on the far edges > inevitable, or can it be corrected somehow? perhaps thinner stock? This > hole was made (fairly carefully) out of a Coke can and sized according > to some pinhole formula (though I forget which one), so it should be > somewhere in the ballpark size-wise. > Thanks, > Simon > > > _______________________________________________ > Pinhole-Discussion mailing list > Pinhole-Discussion@p at ??????? > unsubscribe or change your account at > http://www.p at ???????/discussion/ >
