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Luke Mason

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Everything posted by Luke Mason

  1. Fuji never said 17ms, that came from nowhere, the official press release claims rolling shutter has been halved from X-T2/H1. Also simple math, 60fps is approx 16ms per frame, so rolling shutter cannot exceed that.
  2. X-T2 does not offer a setting to turn off noise reduction in video (default at 0, greyed out), X-H1 and X-T3 allow you to turn it off completely using "-4",
  3. The 17ms quote cannot be found in any of the official Fuji press releases, DPReview mentioned "16ms" in a preview article but no source given. Interestingly, Fuji's official X-T3 press release claims that the rolling shutter distortion "has been halved" compared to X-T2 and X-H1, which has a 21ms rolling shutter according Cinema5D lab test, X-T3's 9ms test result aligns nicely with this official statement and Cinema5D's consistent testing setup.
  4. The only reason is that none of the current ARM processors support HEVC Main 10 version 2 (which includes 10bit 422 up to 12bit 444)
  5. Current ARM processors can only handle hardware accelerated HEVC Main 10 Version 1 up to 10bit 420, to get 10bit 422 or even higher (12bit and/or 444) you need version 2 which is not yet widely supported.
  6. Luke Mason

    DJI Mavic Pro II

    8K refers to hardware accelerated encoding, downsampling is almost always a computationally intensive CPU task. If you look at the readout modes listed on the IMX183 page, 2.7K readout is pixel-binned, it's then upscaled to 4K in the FOV mode. I don't think it's the sensor that's prone to overheat, it's the processor since it's not capable of hardware accelerated 5K downsampling (Sony's BIONZ chip was purpose built for this).
  7. Alexa is under 5ms, otherwise the highest framerate 200fps wouldn't be possible.
  8. Ha, I've done my research, The bitrate Fuji implements at 200Mbps and 400Mbps exceeds the maximum for hardware acceleration (for now).
  9. Right now the internal HEVC Main 10 Level 5.1 10bit files are extremely taxing on even the most high end hardware. Maybe Adobe CC 2019 with improved playback acceleration could make things a bit better, but for now if you really want 10bit, external recording is almost a must!
  10. With preproduction firmware, the performance looks on par if not better than Sony: With Fuji's Kaizen philosophy it can only getter better from now.
  11. Sony can't do eye AF in video mode.
  12. It does not reduce the dynamic range of the scene, it simply makes the black level "milky". You can take away light from a scene, for example using ND filter, but you cannot add light to the shadow with just a filter.
  13. You can format card externally as exFAT and use it in camera, but the video files will still be split into 4GB chunks.
  14. This tool does exactly what you want, Panasonic Vlog to LC709A: http://cameramanben.github.io/LUTCalc/LUTCalc/index.html
  15. Low con filters reduce contrast by lifting black level, but they do not extend the DR.
  16. Luke Mason

    DJI Mavic Pro II

    Full FOV 4K is actually 2.7K upscaled, as the IMX183 sensor can either do full 5.5K readout or 2.7K readout, the Ambarella chip obviously cannot handle 5.5K supersampling. See Table 3 Readout mode: https://www.sony-semicon.co.jp/products_en/new_pro/may_2014/imx183_e.html
  17. I wonder if DR400 in video mode is available on X-T3. On X-H1 it allows 12 stops DR using film simulation.
  18. HDR videos on Youtube generally never show banding (10bit BT.2020)
  19. Cinema5D measured around 0.5 stop more than GH5S and A7S II, I think the new noise reduction algorithm and inter-frame noise reduction contributed to that.
  20. They will all have crazy banding - after Youtube compression. These cameras are too clean at base ISO, there's no noise/grain to dither large gradients without much detail.
  21. Bear in mind that: 1. Sony never use off-the-shelf sensors for their cameras, or in other worlds, their sensors in camera products are not for general sale. 2. This particular sensor is for industrial use 3. Sony's new APS-C flagship is not called A6700 4. You'll see a 26MP BSI sensor, sounds familiar right? 😉
  22. 10bit is confirmed. RX0 is Sony's first prosumer camera to output 10bit 422 via HDMI, there will be more to come.
  23. It's a rumour from a completely unknown source. Please be responsible in your posting.
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