I've used these some. All you need to do is pull the lens board and make a pinhole one. You can use 4x5 cut film holders or the 4x5 polaroid back. You'll need to know the exposure parameters at different bellows extension. There's a lot of info on that in the discussion archives. I stripped down an old speed graphic to the basic box and installed a Finney turret. If you cut off the stops that halt the bellows extension, it will extend to about 13", the focal length of the biggest pinhole and sone plate on the turret. ----- Original Message ----- From: <dibas...@aol.com> To: <pinhole-discussion@p at ???????> Sent: Friday, January 26, 2001 4:47 PM Subject: [pinhole-discussion] 4x5 help?
> I am a newcomer to this discussion list as well as to pinhole. New or not I > am addicted already. I have used the zone2000, paper cameras with 120 film > and oatmeal boxes ( as practiced by Marion Roth). Now I am hungery for more.. > A friend ( not a pinhole person) suggested I find a used 4x5 speed graphic > press camera and convert to pinhole. I noticed quite a few on ebay and > wondered whether anybody has converted one of these. If so, what do I need to > know about getting one ( minimum requirements other than intact bellows ) > what kind of film packs do I need to get ( can I use polaroid with it)?. > Anyway I would appreciate any information that you might offer or perhaps a > book or person I could directly email to. Thanks so much > Donna Bassin > > _______________________________________________ > Pinhole-Discussion mailing list > Pinhole-Discussion@p at ??????? > unsubscribe or change your account at > http://www.p at ???????/discussion/ >
