First, let me clarify -- my intent here is to just present facts (and perhaps cut through some of DJI's marketing and general internet hype that preceded the P4p's release). It's not to bash on the Phantom 4 Pro. Despite the issues, I think it's still a significant upgrade over the standard p4 in terms of image/video quality and features.
Now, some tests to determine how bad the rolling shutter is during pans. I tested using an extreme case (spinning the drone around at full speed) at 24fps, 60fps and 120fps using h.264 and h.265. The 60fps/120fps footage was slowed down to conform to 24fps timeline, which is why it appears the craft is spinning slower (it's not).
Conclusion? Rolling shutter effects are obvious, especially in the 24fps footage. Vertical lines bend, where they should be straight. This indicates the mechanical shutter isn't being used for video. Rolling shutter is less obvious at 60fps and 120fps, likely because the entire sensor isn't being read -- DJI does 60fps and 120fps by line skipping.
Now, some tests to determine how bad the rolling shutter is during pans. I tested using an extreme case (spinning the drone around at full speed) at 24fps, 60fps and 120fps using h.264 and h.265. The 60fps/120fps footage was slowed down to conform to 24fps timeline, which is why it appears the craft is spinning slower (it's not).
Conclusion? Rolling shutter effects are obvious, especially in the 24fps footage. Vertical lines bend, where they should be straight. This indicates the mechanical shutter isn't being used for video. Rolling shutter is less obvious at 60fps and 120fps, likely because the entire sensor isn't being read -- DJI does 60fps and 120fps by line skipping.
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