Just noticed that Barbara Hammer's Sanctus, a film I offered as an example having moving x-ray footage, is being presented tonight by Metrograph (8p Eastern) in the first of two programs keyed to a new book by Genevieve Yue. Available on demand from the 24th to 30th.
https://metrograph.com/live-screenings/genevieve-yue-presents-implicit-movies-program-1-secret-city/?mc_cid=3b4403f65c&mc_eid=01f02c5b93 On Wed, Nov 20, 2019 at 8:40 AM Eric Theise <[email protected]> wrote: > Since Diana also asked for examples I'll chime in with the most obvious: > Barbara Hammer's Sanctus which reworked James Sibley Watson's archival > x-ray footage. > > > http://www.scienceandfilm.org/articles/2710/barbara-hammer-and-the-x-rays-of-james-sibley-watson > > > On Wed, Nov 20, 2019 at 8:26 AM alena williams <[email protected]> > wrote: > >> love this! >> >> > On 20. Nov 2019, at 07:53, Scott Dorsey <[email protected]> wrote: >> > >> > Okay, old guy tells stories. >> > >> > >> > Back in the twenties and thirties, doctors would employ open >> fluoroscopes, >> > with an X-ray source behind the patient and a fluorescent screen in >> front >> > of them. X-rays passing through the patient would cause the screen to >> > illuminate and the doctor could see what was going on inside in >> realtime. >> > >> > Many of the old classic sequences that still show up in educational >> films >> > such as the man eating and man voicing different vowels and consonants, >> > were shot off the screen of an open fluoroscope. >> > >> > This approach has some problems.... namely it takes a lot of radiation >> to >> > get a nice bright image, and all of that radiation (not just the >> backscatter) >> > is pointed at the doctor. So although you can see open fluoroscopes in >> old >> > movies where W.C. Fields has swallowed his cigar, you will not see them >> in >> > use today. >> > >> > Because doctors needed to see movement and didn't want to irradiate >> themselves >> > constantly, a number of manufacturers made cinefluoroscope systems with >> a >> > Mitchell or Acme 35mm pin-registered camera movement, a very fast lens, >> > and a fluorescent screen all in one package. The high speed Leitz >> Noctilux >> > lenses were originally designed for these applications. >> > >> > These were in common use for heart imaging until maybe a decade ago, and >> > if you are looking for a film image you may be able to find >> cardiological >> > radiologists around with a film cineangography system. These systems >> all >> > provide full aperture 35mm images. So if you want 16mm you'd have to >> get >> > the lab to bump it down. >> > >> > All of these systems today have been replaced with high resolution video >> > systems. The nice thing about the video systems is that they result in >> > less radiation to the patient because the light sensor is faster than >> Tri-X. >> > These systems are small and convenient enough that some cardiologists >> will >> > have their own system rather than contracting it out to a radiologist. >> > The bad thing about them is that they tend to have more smear on motion >> > than the film systems because of the longer persistence phosphors. >> > >> > Now... if you don't need to deal with human beings, you can pour a whole >> > lot more radiation into the object. There are a bunch of fairly >> inexpensive >> > X-ray inspection systems for PC boards that give you realtime video with >> > decent resolution. Not very high energy radiation since they just need >> to >> > be looking at thin board traces for the most part. >> > >> > So... if I were looking to rent some time on a machine, I would ask a >> > cardiologist if they could recommend a local radiology guy, or I would >> > talk to PC board fab people, depending on whether I was looking at >> people >> > or objects. I have only done static x-rays, not moving ones, and there >> > aren't a lot of folks doing moving ones artistically today so it could >> be >> > really cool. >> > --scott >> > >> > >> > lens was originally designed >> > >> > _______________________________________________ >> > FrameWorks mailing list >> > [email protected] >> > https://mailman-mail5.webfaction.com/listinfo/frameworks >> _______________________________________________ >> FrameWorks mailing list >> [email protected] >> https://mailman-mail5.webfaction.com/listinfo/frameworks >> >
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