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Robert Houllahan

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Robert Houllahan last won the day on January 10

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About Robert Houllahan

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    http://www.cinelab.com

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  1. It is pretty difficult to mess up threading the Spirit-2K/4K film path but it can be done. Could be that the pressure mechanism in the gate was gummed up or not seated right. Send the negative back for a rescan or check.
  2. I believe there will be a 6.5K Xena running in Australia soon if it isn't already. I will try to find out more info.
  3. Nice! Similar to what I did with mine. I also rigged a Dynamic Perception toothed belt and stepper setup onto mine for light motion control with the MMX controller which works pretty great for some shots.
  4. I have rigged mine up high with the camera underslung. Maybe get a piece of square steel stock to span the table and drill post holes for two C-Stands and then attach it to the Dana Dolly on one end and the regular single C-Stand at the other so the end of the dolly won't be seen in the shot.
  5. When i say the scanner wasn't setup right I think the LED lamp level wasn't bright enough and not balanced and then the operator used the gpu grade tools in the scanner software to elevate the shadows. They possibly did this to avoid clipping the hilites, maybe due to the lack of DR in that sensor?
  6. I don't think the RetroScan uses perf recognition / machine vision stabilization. It uses a LED or Laser perforation detector to fire the lamp and trigger the camera. Machines like the Scan Staton / Xena etc fire the lamp/trigger the camera using velocity from the capstan encoder or combination of velocity and perforation detection. Then the film is overscanned and the perforation and film edge are looked at with machine vision in real time and the film is stabilized in the GPU in the X and Y axis before being demosaiced and written to disk. With the Retroscan you would probably have to do additional stabilization in Resolve or After Effects etc. with an overscanned file.
  7. Those DPX frames are clipped in the shadows (Looking at them in Resolve scopes) specifically the red channel and the shadow levels are elevated. The scanner was not setup right IMO.
  8. How is he converting the DPX to ProRes? I do this all the time and have never had Resolve or Nucoda clip info in the DPX to ProRes conversion no matter what codec (LT HQ 444 etc.) so it is likely something he is doing wrong.
  9. Also I would say any Bayer mask CFA sensor will have limitations built into it in terms of color fidelity, the dyes used on a silicon mask are far from perfect and far from perfectly applied to the individual photosites. IMO a "real" RGB scan from a monochrome sensor with dichroics or a RGB led sequential exposure will continue to be the standard by which scans are judged and why film will continue to have a special look with different color fidelity than math made CFA cameras no matter how "good" they may be.
  10. A couple new fast very hi res samples: https://www.visionsystech.com/products/cameras/svs-vistek-shr411-sony-imx411-sensor-camera-151mp https://www.teledynedalsa.com/en/products/imaging/cameras/falcon4/
  11. Manufacturers of digital sensors will continue to make higher resolution units with better specs. And scanner manufacturers will put those sensors in the scanners. Look how fast everyone with a Scan Station 5K dumped that (noisy) sensor for the 6.5K Sony Pregius one.
  12. I am not sure if DFT uses Perc or some 3M "engineered" fluid, same with Arri with the Arriscan XT liquid gates.
  13. Yeah what Perry said. Alcohol is not a liquid with a refractive index which will really work as a liquid gate. https://en.wikipedia.org/wiki/Tetrachloroethylene is. You will need some proper handling and venting of that fluid. Arri and DFT have full immersion gates here is a video of the Scannity: I think each liquid gate for the Scannity is $225,000 not sure if they have a 8mm liquid gate yet. Real liquid gate scans are expensive and fussy.
  14. I had an Imagica Imager XE+ and I gave it away for free which was about what it was worth.
  15. I think FotoKem only has an Imagica "Big Foot" scanner for 12K IMAX / 65mm scans otherwise they use the Spirit 4K or Scannity.
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