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Luke Mason

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Everything posted by Luke Mason

  1. All modern Sony sensors use copper interconnect, it has nothing to do with BSI which is a photosite architecture, Sony calls it Exmor R, R for Reverse. It's only used on pixel-dense sensors like A7R II, RX100 series and most mobile phone sensors. BSI on a alleged 15MP FF sensor is just scientifically and commercially unnecessary.
  2. Very likely to be fabricated spec, CMOS sensors only benefit from BSI when the individual photosite gets really small, think A7R II/RX100 V, a 15MP FF sensor won't gain anything at all from using BSI design, the photosite area is already big enough for high quantum efficiency.
  3. Already announced, highlights include 5 axis IBIS and new LSI front-end which offers "significant increase in sensor readout speed" for stills and video. With new menu design of course.
  4. This is currently the best LED manufacturer: http://store.yujiintl.com/collections/frontpage/products/vtc-series-smd-5730?variant=1428396033 the violet chip products easily beat everthing else on the market right now including ARRI in terms of light quality and color accuracy.
  5. 4K @ 60Mbps is not good at all, DJI should give an option of selectable bitrate from low to high 100-200Mbps
  6. It's not officially supported though: http://www.canon.com.cn/products/camera/eos/data/dual_pixel_cmos_af.html
  7. Canon has a list of DPAF compatible lenses. Your 85 1.8 is supported.
  8. Only version II and III support DPAF. Version III has significantly better optical quality than version II. Buy what you can afford.
  9. You need to look at "Screen", not "Print", "Print" DR takes into account the SNR increase as a result of scaling down 30MP to roughly 8MP. At base ISO100, 5D IV has raw DR of 12.6EV.
  10. Not as clean as 1DC/1DX according to my test.
  11. His speech pattern and body language changed when confronted about the lack of C-log, it clearly suggests elevated stress and anxiety, which implies that he didn't know the actual reason behind the lack of C-log, and he was making up an explanation on the fly in front of the camera.
  12. shutter speed too low results in too much motion blur on any camera, not just 1DX2. Also expensive Tiffen/Schneider all have visible colour tint, the best one is ND made by Breakthrough Photography, or True ND from Mitomo Japan.
  13. you know, some CGI shots in blockbuster films intentionally add some chromatic aberration to make the shots look more realistic
  14. There is nothing right or wrong about it, it's all down to personal preference. For shots with little motion 1/4000 shutter is totally fine, also if it looks too jarring you can add motion blur in post.
  15. check here: Also bear in mind that picture profiles cannot replicate real C-log highlight roll-off and colour science.
  16. No, the colour science and highlight roll-off are not replicable with picture profiles. If you observe Andrew's comparison pic, you will notice the colours are mapped differently on real C-log, and not just a saturation difference, red is less orange and blue has less magenta. Adam Wilt did a comparison between C-log colour science and Alexa colour science, there were some similarities.
  17. FF HD on 1DC/1DX II up to 30p has higher horizontal resolution, vertical resolution is about the same as 5D3. 1DX II 60p and 120p are the same 5D3 quality. 1080p HDMI output in 4K mode on 1DC/1DX II is 2x2 pixel binned, not oversampled. On 1DX II, 4K mode has consistent rolling shutter at all frame rates, about 16ms. 1DC is the only Canon DSLR that can record internally or stay standby in liveview non-stop for 12 hours (with enough power supply and storage). All other cameras including 1DX II and 5D4 stop recording or exit liveview every 30min. This is important to consider if you do long events. That's partially incorrect I'm afraid, 120/100fps recording gets conformed to 29.97fps or 25fps depending on NTSC/PAL settings, only these two framerates are available when shooting 120/100fps. Higher framerates in HD over 30p are ALL-I compression only, the bitrate scales linearly at 180Mbps for 60p and 360Mbps for 120p, compression artifacts are very rare.
  18. 5DS R uses a combination of line-skipping and pixel-binning to read its huge pixel count, the resulting strong aliasing made it appear sharp. But it's still problematic.
  19. I tried that a while ago, EOS utility seems to be a bug, it allows you to change the parameters but only strength affects the final image. It's the same video sharpening effect in all previous DSLRs, large radius with obvious edge halo. I just turn it off to 0.
  20. In video mode if you go to PP settings, fineness and threshold will be greyed out. Only strength is available, same effect as previous DSLRs
  21. Fine detail does not work in video mode, it returns to traditional sharpness setting with no control over sharpening radius and threshold.
  22. You said it's 3x3, suggesting both horizontal and vertical binning.
  23. 1DX II is clearly not a broadcast camera, it does not have to comply to industry quality standard (lines of resolution, colour sampling, bitdepth etc. in 1080p). Canon can do whatever they want to keep the cost down and to keep the camera cool and reasonable battery life. Plus, the 4K mode downscaled to HD is likely going to be approved by EBU for HD Tier 1 use, 1DC and XC10 were approved a long time ago, and as far as I know remain the only DSLRs capable for broadcast use.
  24. hahaha, you overestimated Canon, pre-5D III cameras use line skipping, there was no 3x3 binning at that time. 5D3 uses large group pixel bins of 5x5, resulting a 1152x648 RAW bayer, which then gets upscaled to 1080p, that's why it has about 600-700 lines of resolution similar thing happens to other Canon cameras. The best HD image from Canon DSLR is 1DC in S35 mode, which I've detailed in another post, it resolves near 1000 lines. A 1824x1026 RAW bayer would be sharp as f***, with resolution easily exceeding 1000 lines.
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