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georg lamshöft

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  1. "4k" nor "4:4:4" are measurements but just technical specifications. "4k" is just 4000 (as long as we are picky: "kilo" is always 1000 and never 2^10 ;-) pixels horizontally and "4:4:4 RGB" is full luminance AND chrominance information in each pixel in every frame. "Debayering" is just a specific form of interpolation using the different sensibility of human vision for chrominance and luminance. Why do we have to be this specific and picky? Because it makes it easier to differentiate technologies by spec and not only measurement. Otherwise it becomes even more difficult for customers to understand the value of technical concepts like oversampling bayer-sensors, beam-splitters or other technologies. Now a company tries to push "4k 60p" in a 20MBit/s-stream (or is that just the bitrate for 24p?) so large images without lot's of actual detail due to a low bitrate. The same issue here: "More pixels are just better, ALWAYS!"...
  2. Of course this statement is simply false. You can interpolate 4k 4:4:4 RGB-files from a 4k Bayer-sensor but calling that "4k 4:4:4 RGB" would render any technical description of resolution or sampling useless. A VGA webcam could be combined with a software that makes it a "true 8k 120fps"-camera.... "4k Bayer != 4k RGB"-critique is propably even more relevant today since RED (and a few others) started the "k-Marketing", suggesting that 4k is at least twice as good as 2k - but the professional video world has been technically more precise till then - something that we should return to, IMHO. Otherwise we would only end up with cameras with more and more "K" and not necessarily higher IQ.
  3. Even the normal Alexa with rolling shutter barely suffers from any motion artifacts (just try to film a rotating disc with stripes) while the Studio uses a mechanical shutter and doesn't suffer motion artifacts at all. Dion Beebe worked with Michael Mann who loves "videoish" looks and doesn't hesitate to use large shutter angles (like 270-360°) which generates very unnatural motion-rendering. Maybe this was the case here as well?
  4. Sensors much larger than S35 (24x36mm, 65mm and beyond) are made with a technology called "stitching". It basically means that a sensor this size cannot be producd in one pass but is made from several sensors which are "stitched" together on the wafer. This production process can only be handled by very few manufacturers (not sure about the suppliers of ARRI and RED) and always causes problems. The stitched sensors create one big sensor but still have slightly different properties which can be masked in firmware to a certain degree but may not be satisfactory for professional cinema standards.
  5. It seems you're right, I'm sorry. I've got the information from an older source and an Interview in German TV where Mr. Tykwer stated he will use a new digital camera by ARRI for his next project (that was in 2010).
  6. As far as I know, it's independently produced and therefore they seek an unconventional marketing!? I'm eager to see it, although I'm prepared for anything because of the Wachowskis involved... It is meant to be the biggest German production since "Metrolpolis" and IMHO Tykwer is the first German visionary director since Lang, but somehow I doubt this will be his masterpiece (which is just a matter of time, IMHO)... Mr Tykwer & Frank Griebe are big fans of 65mm (used partially for "the International") and I hope they finally have the balls to go for it in their next project! This time it's just loads of CGI + Alexa.
  7. Kodak the printer-brand? The digicam-brand? You're right, but not the film-division. They have a pretty modern and productive facility in Rochester, they're profitable, they have unique know-how that can be diversified for non-photographic applications, they have the best negative-films on the market and they're propably cheap to buy, too... All they need is a solid long-term investor. Come on, Mr. Spielberg, Nolan, Bay... But thats OT...
  8. Looks excellent! Next time 65mm, please. Can't Spielberg himself buy the film-department from Kodak?
  9. Interesting, since this is a new design, how well is it corrected? Just optimized to achieve mediocre resolution (4k on a 36mm wide sensor) with a focus on mechanics (stability, lack of focus shift, breathing) or actually a state-of-the-art design suitable also for D800 and others? Anybody had a chance to "test" it on IBC?
  10. Sorry, forgot the trailer-link: http://www.youtube.com/watch?v=gIP6gNU6e80 By the way, who contributed most songs in the film, the credits said "Nina..." but I forgot the surname!? Google won't tell...
  11. I accidentally came across "Excision", a quite interesting debut-film for lovers of very dark humor and uncompromising horror-drama. Particulary impressive is the performance of AnnaLynne McCord and interesting cameos (Ray Wise, Malcolm MacDowell, John Waters...). Since this is a low budget production with limited release I thought it might profit from some "word-of-mouth propaganda", I think the director/writer and main actress have potential! What might be interesting for us regarding cinematography (and therefore a post in this forum) was the presentation on a 4k DLP Barco on a big screen during the "Fantasy Filmfest" in Berlin. I think it was shot on a RED MX or Epic, resolution was fine and low-light scenes looked good, but colors were occassionally off and clipped highlights made bright exterior scenes very video-ish. IMHO, it's still a long way from the 35mm-sourced-films I watched on the very same screen, especially since it's limited budget apparantly didn't allow for extensive color-correction. Does anybody have additional technical information?
  12. I have seen it on 70mm at the Berlinale Retrospektive - if I remember correctly it was a restored print from 1989? IQ was impressive, especially considering the age of the movie itself, can't wait to see "the Master" shot with better lenses and film stock. 70mm is the way to go! The movie itself was underwhelming, it was the director's cut. I could see how it influenced many later epic movies - but it was simply too long and tiresome.
  13. The Trailer is finally out! (in 3D!) Wow, 65mm on Youtube :blink: I hope there will be more than one 70mm-print, otherwise it will propably end up heavily damaged in Berlin just in time to honour PTAs 100th birthday @ Berlinale 2070... ;) Or Scientology will burn all prints... :unsure:
  14. source: wired.com What new lenses? Has Panavision actually designed faster lenses for IMAX!? The fastest commercial medium-format lenses are usually f2 - no matter from which vendor!?
  15. Thanks for that link, I certainly don't agree on everything said but it contains actual comments from Ridley - so "Prometheus" actually relates to Christianity by purpose? But still, I also think it's not a well-designed story that has to revealed by hardcore-viewers but a fundamentally lacking script and cut - it's at least 10min too short, IMHO P.S. sorry for all the spelling and grammar issues in my last posts, I'm too slow typing on my touchscreen and therefore too slow for the editing function... :-()
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