Archived posting to the Leica Users Group, 2002/03/21
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Kodak makes a X-ray duplicating film, X-OMAT 2 Dental Duplicating Film #4487. It's contact printed and developed in standard x-ray chemicals (which means paper chemicals will probably give a good result). Amilcar Jim Brick wrote: > > At 06:39 PM 3/20/2002 -0800, someone wrote: > > >This Saturday I will be photographing various x-ray sheets for a client on > >Agfa Scala 200 b&w slide film with my Leica R8 and appropriate lenses. The > >x-ray sheets will be lit via a standard x-ray viewbox. Since the light will > >be emitted from behind the film, incident readings are impossible. Thus, > >having to use reflected readings, I must be assured of perfect exposures and > >am not certain how. Can anyone herein provide suggestions as to obtaining > >correct metering? Thanks in advance! > > > >Terry > > This is a tough assignment. Years ago Kodak published a booklet on how to > photograph x-rays. The main emphasis was on pre exposing (flashing) the > film so it could record the fine gradations in the dark portions and > develop so that there is also detail in the light parts. A direct positive > film such as Kodak SO-132 film might be ideal as it, like Scala, produces a > positive image directly, has a long tonal range, and the contrast is > controlled by development time. > > Jim > > -- > To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html