Archived posting to the Leica Users Group, 2018/06/20
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Thanks, Dr Ted! That?s something I?d never considered. Fortunately, background radiation at sea level is mostly due to alpha and beta particles, which would not penetrate a camera body. Hoping to get lucky with someone who?s done what I want to do. Best wishes, ?howard > On Jun 20, 2018, at 16:53, Ted Grant via LUG <lug at leica-users.org> > wrote: > > The only thing I can add to this is? > Depending how old the film is will depend if you have any images at all? > Even depending on your processing? WHY? > Simply depending on the radiation factor of planet Earth and time the film > was exposed until today? The radiation can or might have destroyed your > images. > Many photogs have no idea about Planet Earths' radiation factor and it's > effect on long time exposure to it. Yep it's there 24 hours a day and we? > YES US the shooters with cameras and film are subjected to it daily!! > I suppose as I have been told you can give it a try? however others have > offered in processing? MAYBE YOU'LL GET LUCKY????" > good luck!!!!!!!!!!!!!! > cheers, > Dr.Ted Grant O.C. > > -----Original Message----- > From: LUG [mailto:lug-bounces+tedgrant=shaw.ca at leica-users.org] On > Behalf Of Don Dory via LUG > Sent: June-20-18 8:47 AM > To: Leica Users Group > Cc: Don Dory > Subject: Re: [Leica] Developing E-4 Ektachrome at home > > My suggestion would be to use an extreme compensating developer say Rodinal > 1/100 with no agitation. Memory tells me that the chromes have extreme > contrast that needs to be moderated. Also, after all this time latent > images will be weak and lots of fog. > > On Wed, Jun 20, 2018, 10:43 AM Howard L Ritter Jr <hlritter at twc.com> > wrote: > >> I?ve read that E-4 and E-6 processes are very different, and that E-4 film >> will be ruined by E-6 processing. For one thing, E-4 film needs a >> pre-hardening step that E-6 doesn?t employ, to keep the emulsion from >> detaching from the film base. I think this might be the main obstruction >> to >> home processing. >> >> It?s been surprisingly unfruitful to google this topic. >> >> ?howard >> >>> On Jun 20, 2018, at 07:48, John McMaster <john at mcmaster.co.uk> wrote: >>> >>> AFAIR, E4 was lower temperature than E6 - many decades since I shot >> Kodak colour IR ;-) >>> >>> john >>> >>> -----Original Message----- >>> From: LUG [mailto:lug-bounces+john=mcmaster.co.uk at leica-users.org] On >> Behalf Of Montie via LUG >>> Sent: 20 June 2018 08:23 >>> To: lug at leica-users.org >>> Cc: Montie >>> Subject: Re: [Leica] Developing E-4 Ektachrome at home >>> >>> If it were me, I'd be shopping around for a single shot E-6 kit >> (Formulary, B&H, etc.) There may be some still around. I'm thinkin E-4 >> film >> will render a usable image (if properly exposed) processed in E-6. >>> Could be wrong, again, it's been decades...But something to check on. ;-/ >>> >>> Montie >>> >>> >>>>> Does anyone know anything about home processing of E-4 Ektachrome as a >> B&W negative? >>> >>> My brother just came across Dad?s old View-Master stereo camera, opened >> the back, and discovered that it had a partially exposed roll of film in >> it. He sent the camera to me and I figured out how to rewind the film. >> (Thank you, Mike Butkus at Orphan Cameras, butkus.org >> <http://butkus.org/>) >> When I took it out, I found that it?s process E-4 Ektachrome, which I was >> told was marketed from 1963-74. I suspect the film was shot toward the >> early part of that period. I?d like to see what images of me and my sibs >> might be on it. >>> >>> It can be processed at some expense by several commercial labs, but >> they?ll develop it as a B&W negative. I?d think this could be done at >> home, >> since it?s the color and the reversal that take the exotic chemicals and >> the technique, correct? I know there?s a caveat about the need for >> hardening of the emulsion of E-4 film prior to processing, so this might >> make it impossible to do at home. >>> >>> Any instructions, experiences, or guidance appreciated. >>> >>> BTW, I?m running a roll of Ilford Delta 100, the highest ASA the camera >> is calibrated for ? and it goes down to ASA 4, for original Kodachrome! ? >> through it now. It might yield some interesting images for those who can >> fuse stereo pairs by staring at them onscreen. If so, I?ll post them. >>> >>> (This camera has an innovative system with linked ASA, shutter speed, >> and aperture dials, calibrated for subject brightness and for illumination >> level ? and even for summer or winter! ? obviating the need for a light >> meter. As I recall, it was quite effective even with the slide film that >> it >> had to use. It had fixed-focus lenses and a viewfinder that incorporated a >> spirit level below the field of view, as leveling is critical for a stereo >> camera. A flash attachment with its own built-in split-image rangefinder >> for determining the correct aperture setting was available. Because the >> stereo effect was more pronounced the closer the subject, two degrees of >> close-up lenses were available, going down to 20". Conceptually and >> mechanically, it?s a fascinating camera and system.) >>> >>> >>> ?howard >>> >>> _______________________________________________ >>> Leica Users Group. >>> See http://leica-users.org/mailman/listinfo/lug for more information >>> >>> _______________________________________________ >>> Leica Users Group. >>> See http://leica-users.org/mailman/listinfo/lug for more information >> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information