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John Shell

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  1. I remember reading somewhere several years back about how the CRT film recorders IMAX uses are limited to 4K because of the spot size and I’m just wondering, is it still the case today ?? And why can’t they use laser recorders for higher resolution ??
  2. The colorist(Yvan Lucas) mentioned on his Instagram that he used an Autochrome LUT, a 3 strip technicolor process for the last scene and a classic bleach bypass for some other scenes
  3. I've been hearing about the Alexa looking film like or closest to film and I just don't see it. Unless it has undergone obvious film emulation, every movie I've seen shot on an Arri Alexa looks digital just like any other movie shot on a RED or a Venice. Take the Marvel films for example, most are primarily shot on an Arri Alexa and they look nothing like film.
  4. SAY HELLO TO ADÉLIE ! It is our pleasure to announce that we have been working on CAD drawings and simulations for the last six months of a new ground breaking 15-perf 65mm camera. This camera is completely different from anything on the market today and we have finally committed design drawings to prototype manufacturing this week. Our first stage goal is to build a prototype of the transport and shutter mechanism during Q4-2023 allowing us to judge the mechanical performance followed by the actual chassis if the tests conclude positive as simulations predict. We hope to publish more information about Adélie in December 2023. https://www.logmar.dk/uncategorized/elementor-1244/
  5. Dunno if it's the same as jittering but the Pentax K-3 dslr had a feature where the sensor gets micro vibrated at a rate of 500hz to produce some blur. This was their method of reducing aliasing without using an anti aliasing filter. Not sure if any other cameras ever had this feature tho
  6. Any chance you could share some of the images you've shot. and compared??.
  7. That 18K figure has always been dubious especially when Yedlin showed in his ResDemo that IMAX 70mm Vision 3 500T scanned at 11K resolved slightly less detail than Alexa 65 with 6.5K resolution. Vision 3 50D would be a lot more resolute but still nowhere near 18K. Also, I I doubt those old medium format lenses could even get near that.
  8. One of the reasons stated by DoP Greig Fraser as to why they decided not to shoot Dune on film was because it looked too nostalgic and I’m just wondering, is this really a valid reason considering all the tools available today in digital imaging which can create basically any look you want ?? Also there are several movies shot on film that look very modern.
  9. Forgive me but I’m still confused about this camera’s sensor. How exactly does this camera not perform any demosaicing when each photosite only gets 1 color just like a Bayer sensor ??
  10. Reading through various forums, I always see people talk about the filmic colours on their old CCD stills camera and older cinema cameras like the Sony F35 having a filmic look and I wonder if this is just some nostalgia nonsense or there's some truth to it??
  11. So I was reading an old article from Kodak on Mission Impossible: Ghost protocol and they mentioned: "The IMAX material was shot with the 15-perf IMAX camera, as well as the smaller, lighter 8-perf Iwerks camera for shots involving more camera movement or Steadicam. Hasselblad lenses were used. Elswit gravitated toward wider focal lengths—40mm, 50mm, 60mm and 80mm for IMAX—in order to fill the large-format frame with visual information. “If there is one weak element in IMAX, it’s these 30-year-old lenses,” Elswit notes. “They’re OK, just not great.” https://web.archive.org/web/20120129035501/http://motion.kodak.com/motion/Publications/In_Camera/Focus_on_Film/missionImpossible.htm I'm guessing he's referring to sharpness here but are old haselblad medium format lenses really not that good in sharpness ?? Or could be be referring to something else ??
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