> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of Mark Roberts > Sent: 25 March 2007 15:13 > To: Pentax-Discuss Mail List > Subject: Re: Pinhole photography conference (was: Zero Image) > > Mat Maessen wrote: > > >http://www.matoe.org/gallery2/v/tomatoe/pinhole/IMGP0119K10D.jpg.html > > > >Pinhole photography with a K10D. I drilled a hole into a Pentax body > >cap. Then I cut a piece of a soda can, made a pinhole in it, painted > >it black, and taped it onto the cap with electrical tape. > >Exposure was about half a second at ISO 100 in full sunlight. > > Wow. I'm going to have to try that! >
earlier today I made a hole in a body cap and took some pictures. The first in each pair is the scene through a lens. The 2nd is the scene through the pinhole: http://www.web-options.com/Pinhole/ Interestingly the pinhole seems to have a focal length of about 50mm. The f-stop, according to my calculation, is about 128, based on the difference in exposure times at ISO 100. -- Bob -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
