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This is not true. We've compared RAW video from smartphone cameras to a couple of professional cameras and the difference is not as much as you might think.

internetter 3y ago
See https://www.youtube.com/watch?v=vUn68iFMNXY https://www.youtube.com/watch?v=vUn68iFMNXY. Remarkably similar. Big difference seems to be unavoidable differences arising from a small sensor like bokeh and DOF, and especially the consistency of colour from the ARRI which makes grading a breeze. But the fact that iPhone footage can be intermingled with 100$k camera footage (after grade) without being noticeable is shocking
- sudosysgen 3y ago
  Why should it be? The V30 came out in 2017 and people made exactly the same videos about it, about how you could intermingle the footage with an Alexa or a RED. You can, yes, only in perfect light and if the focal/aperture works for the scene. That's rare, and that's why it hasn't caught on.
sudosysgen 3y ago
I don't understand what you're trying to say. Yes, in absolutely perfect light, if it has the focal length you need, it's going to be good. But that's a very particular situation, we both know that as soon as the ISO comes up it's not even close, and soon enough shooting in log then becomes a gimmick.
- foldr 3y ago
  Have you done any comparisons that you can point to? The iPhone 15 hasn't even been out all that long. The video in the sibling comment notes that the iPhone does surprisingly well in terms of dynamic range, for example (7:12).
  - sudosysgen 3y ago
    There are two limiting factors in dynamic range. Those are the dynamic range of the sensor itself (which is and has been great, even on my V30), and the difference between the highlights and the noise floor - and the noise floor is fixed. The iPhone 15 doesn't have a meaningfully lower noise floor than the iPhone 14 and it's only barely better than the V30 - or any other smartphone with a BSI sensor and a large aperture. The video is exactly consistent with what I'm saying. All examples are either in broad daylight or strong studio lighting.
    - foldr 3y ago
      As far as I can tell, you haven't done a comparison in low light conditions of the iPhone 15 against any other video camera. Of course one would expect a camera with a larger sensor to do better in low light, all else being equal. But all else is not equal. Professional video cameras aren't stacking multiple exposures to construct a single frame, and don't have anything like the computational power of the iPhone 15. So it would be much more interesting to see a real comparison than to hear people repeating abstract theoretical points over and over again.
      - sudosysgen 3y ago
        > Professional video cameras aren't stacking multiple exposures to construct a single frame We are talking about video. > and don't have anything like the computational power of the iPhone 15 They have far more, because the processing is done in post with powerful workstations. For stills you have a point because of multiframe techniques you can't easily do in post, but that doesn't work at all for video. > repeating abstract theoretical points over and over again You don't have to. There are dozens of practical comparisons done on dozens of smartphones over the past years. No one has really done it on the iPhone 15 (yet) because it just came out, but there is no reason why it would be different. People have done the comparison with the iPhone 14 and even without log formats results are far worse in anything but perfect light, even compared to hobbyist-grade video cameras costing less than the phone. This will be even worse for log video by the nature of the logarithmic transformation.

internetter 3y ago

See https://www.youtube.com/watch?v=vUn68iFMNXY https://www.youtube.com/watch?v=vUn68iFMNXY. Remarkably similar. Big difference seems to be unavoidable differences arising from a small sensor like bokeh and DOF, and especially the consistency of colour from the ARRI which makes grading a breeze. But the fact that iPhone footage can be intermingled with 100$k camera footage (after grade) without being noticeable is shocking

sudosysgen 3y ago
Why should it be? The V30 came out in 2017 and people made exactly the same videos about it, about how you could intermingle the footage with an Alexa or a RED. You can, yes, only in perfect light and if the focal/aperture works for the scene. That's rare, and that's why it hasn't caught on.

sudosysgen 3y ago

I don't understand what you're trying to say. Yes, in absolutely perfect light, if it has the focal length you need, it's going to be good. But that's a very particular situation, we both know that as soon as the ISO comes up it's not even close, and soon enough shooting in log then becomes a gimmick.

foldr 3y ago
Have you done any comparisons that you can point to? The iPhone 15 hasn't even been out all that long. The video in the sibling comment notes that the iPhone does surprisingly well in terms of dynamic range, for example (7:12).
- sudosysgen 3y ago
  There are two limiting factors in dynamic range. Those are the dynamic range of the sensor itself (which is and has been great, even on my V30), and the difference between the highlights and the noise floor - and the noise floor is fixed. The iPhone 15 doesn't have a meaningfully lower noise floor than the iPhone 14 and it's only barely better than the V30 - or any other smartphone with a BSI sensor and a large aperture. The video is exactly consistent with what I'm saying. All examples are either in broad daylight or strong studio lighting.
  - foldr 3y ago
    As far as I can tell, you haven't done a comparison in low light conditions of the iPhone 15 against any other video camera. Of course one would expect a camera with a larger sensor to do better in low light, all else being equal. But all else is not equal. Professional video cameras aren't stacking multiple exposures to construct a single frame, and don't have anything like the computational power of the iPhone 15. So it would be much more interesting to see a real comparison than to hear people repeating abstract theoretical points over and over again.
    - sudosysgen 3y ago
      > Professional video cameras aren't stacking multiple exposures to construct a single frame We are talking about video. > and don't have anything like the computational power of the iPhone 15 They have far more, because the processing is done in post with powerful workstations. For stills you have a point because of multiframe techniques you can't easily do in post, but that doesn't work at all for video. > repeating abstract theoretical points over and over again You don't have to. There are dozens of practical comparisons done on dozens of smartphones over the past years. No one has really done it on the iPhone 15 (yet) because it just came out, but there is no reason why it would be different. People have done the comparison with the iPhone 14 and even without log formats results are far worse in anything but perfect light, even compared to hobbyist-grade video cameras costing less than the phone. This will be even worse for log video by the nature of the logarithmic transformation.