Jump to content

androidlad

Members
  • Content Count

    1,074
  • Joined

  • Last visited

Everything posted by androidlad

  1. Again, marketing BS. Sony uses DBI stacked sensor with DRAM, Samsung's 108MP sensor is not stacked (but Samsung does have stacked sensors), of course it's slower.
  2. NTSC 720x480 with 0.9091 PAR with the padding removed is 704x480, then converted to square pixel results in 640x480. Either keep it 640x480, or upscale with a dedicated upscaling tool to HD. This is the proper way to do it.
  3. Those drones with 1" sensor have 12bit ADC, so the noise level will be noticeably better. Mavic 2 Pro is a special case because the 4K is either heavily subsampled from 5.5K full width, or 1:1 sampled from the centre. Both of them amplify noise level.
  4. Mobile phone CMOS sensors are generally 10bit ADC only, for power consumption and speed.
  5. The multi-frame stacked photos reduce some noise.
  6. From an academic point of view, what you are doing is essentially "digital curation" (well, a ghetto version). You would want to preserve all of the "significant properties" of the digital objects and only "transform" the intended property, which in this case, is the resolution. That means square pixel, HD with original 4:3 aspect ratio (960x720 or 1440x1080, depending on how good the upscaling algorithm is). The frame rate should also remain unchanged.
  7. On current sub 1" CMOS sensors like the IMX586 used on MAVIC Air 2, the ADC operates at only 10bit, this is the reason why even at base ISO, in both photo and video mode, anything below middle grey is covered in noise.
  8. androidlad

    RED Komodo

    RED may have helped Canon develop the DIGIC X Processor, and other yet to be announced ones
  9. Also consider Autel EVO II series, they are rapidly catching up and are pushing frequent firmware updates.
  10. Another thing is that with the switch to the new DJI Fly app, there's no longer the option to adjust the sharpening (and contrast, saturation). So in video mode you're stuck with the over-sharpened edge halo.
  11. The HDR video mode on Mavic Air 2 uses the DOL-HDR feature on the newer Sony sensors, it's very similar to dual gain but the two readout are not completely simultaneous (a few miliseconds apart), and requires 2 ADC for high and low gain, which halves the max frame rate and doubles the rolling shutter.
  12. The only caveat I agree with is the fact that it's a pre-production camera. Remember it was a standardised lab test, Alexa was tested in ProRes using the same methodology, so it's completely fair to test C300 MK III with XF-AVC. With Alexa being the benchmark, there's something to compare to, so if want to take into account DR distribution in specific log curves, highlight roll-off etc., then the Alexa DR would change too, so maybe instead of 14 vs. 12.8, you could get 15 vs. 13.8. Again remember it's a standardised test, the DR numbers are all relative to the benchmark, we can't look at
  13. Because it's Quad Bayer RAW, it can look better than native 12MP if you capture 48MP and downscale in post.
  14. It's the infamous F-log banding/macro-blocking, discussed before.
  15. Image quality wise, in daylight Air 2 will be very similar, if not slight better than the Pro. Of course it won't be as good in low light, and it doesn't have 10bit and D-log M.
  16. It's official: https://www.newsshooter.com/2020/04/28/dji-unveils-mavic-air-2/ It supports HEVC/H.265 codec but only at 8bit. Initial review suggests significant image quality improvement over the original Air, including low light.
  17. Well I guess it's called bleach for a reason... I'm sure you can fix it with your nice package of tools
  18. Yeah HDR photos, video and panorama (multi-exposure blending) 34min flight time, 68km/h max speed, 10km max signal range.
  19. Mavic Air 2 confirmed to have 4K 60P @ 120Mbps video, also 1080/240P and 8K timelapse video.
  20. https://support.apple.com/en-gb/HT200321#proresraw Not yet in Apple's list but should be there by the time the camera ships.
  21. S1/S1H are based on IMX410, the A7 III sensor, also seen on Z6, MAVO LF and ZCAM F6, it's extremely popular. Yes the 60MP one is IMX455.
  22. With no surprise, the sensor is based on IMX309, the one used in Nikon D850 and Z7.
  23. Meant to type "can't" on the phone. you can't just add cyan to any footage make them look high end.
×
×
  • Create New...