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Dirk DeJonghe

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About Dirk DeJonghe

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    Industry Rep
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  • My Gear
    Aaton 35-III, Aaton XTR-Plus,
  • Specialties
    All film related activities; full analog film workflow color and B&W; traditional film grading and printing (16, 35mm), digital grading Baselight, digital recording and scanning, film restoration; digital archiving of film (8, 16, 35mm), video and audio.

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  1. Maybe you should read 'The Negative' by Ansel Adams, This will give you then answers to your questions and more. Of course, digital was not yet invented then.
  2. Each loop belt (one for each color) had pins on which the matrix and processed printstock (sound track already on it) were held in contact to allow the dye to transfer. I don't know about any coatings. My visit must have been in 1975 or so, just before I bought my first Model C printer. I had been invited by B&H to see Technicolor in operation. This plant was later sold to China because it permits mass production of prints on cheap B&W printstock (then).
  3. They showed me the entire process, it starts with a model C type printer, just printing the soundtrack from the negative in a loop cabinet. The film then gets processed in a B&W machine and is then transported to another floor where the imbibition process takes place. Each machine is about 100 ft long (distant memory) where three matrix films are coated with ink (YCM) and then contact 'printed' on the filmstrip that already has the photograpic soundtrack. All this in a continuous motion, film roll after film roll is spliced in the darkroom before the soundtrack printer and only taken apart
  4. Joe Dervin is right, I was going to post a correction to David's post about no photographic emulsion but no longer needed. I visited Technicolor London in the mid-70s when they were still running the IB process, they even gave me a few samples of matrix films. The minimum order then was 200 prints.
  5. Before attaching the magazine to the camera, after loading a full roll, give a sharp know with your fist on the cover of the loading side while holding the magazine upright in normal shooting position. This will move the fresh rawstock slightly and prevent it from rubbing against the backplate. During transport loaded magazines should be stored upright, not flat.
  6. It is the then current standard color negative film, 1st generation. Corresponds roughly to the 7247. About 30 years old now. Can still be processed in ECN2.
  7. We did the labwork on Guava Island. The brief was to make it look like 1960. The digital images were recorded to 35mm 5219, academy frame and then scanned back to DPX Log. We received a version that was not the final frame, so we had to adjust our recorder to allow for the largest sizes, even as the majority were more cropped. Anyway, the director was happy.
  8. It doesn't matter if the pressure plate is in the magazine or in the camera. What matters is that the pressure plate must be uniform black anodised, not chrome or with chrome rails such as used on Aatons. Both on 16 and 35mm light will penetrate the emulsion and will be bounced back of the shiny parts of the pressure plate and add a pattern of extra exposure quite visible on grey backgrounds and when the camera pans. I have had several large productions on 5222/7222 this year and I always warn customers about this. An easy way to check is to open the shutter with the lens port open a
  9. I looked at this same negative again just this afternoon. There is a 3.5 stop overexposure compared to the shot before and after. The printing lights are at about 45 for green. The rest of the shots is around 25 for green. I could have it scanned on an Arriscan to see how it will come out.
  10. Hello, We worked for Yorgos Lanthimos earlier this year, send me your email address and we can talk.
  11. Try running the camera without a lens, in a dark room and look towards the filmgate through the lens mount.
  12. I have two demand drive and one sprocket Treise machine. The second Treise was 35mm only and was dismantled.
  13. My processing machines don't even use the perforations, I can process unperforated stock just as easily. Those processors that use sprockets will most likely be multiples of 4 perf interval as well. On the other hand, the perforators at Kodak only work in 4 perf, so that is excluded as well. Remains only the camera as a suspect;
  14. The fogging is at 4 perf interval while the format is 3 perf. Sorry, Need to remove my facemask, I miscounted.
  15. What David says is correct. The white light of the printer lamp is split into RGB using dichroic filters, in each beam there is a 'light valve' that can be instantly changed to a new setting. The valves are closed at zero and maximum open at 50. The printer is first calibrated to print neutral from an LAD reference negative at the standard printing lights of 25-25-25 using printer trims. The negative is then graded and individual printing lights are then chosen per scene, taking into account pre-corrections for different filmstocks etc. Contrast and saturation can be changed with us
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