5/21/2023 0 Comments Phantom 3 pro video formatsis not the real-world performance of the card, it is what the card can achieve in short bursts. Read speed is of little interest, it is the write speed that matter. Most manufacturers of cards, including Sandisk, provide a write speed specification that includes the phrasing 'Up to XX MB/s' or similar, and often tout the read speed because it is faster. Also, with regard to buffers in a camera, they are only useful for still shots, a camera shooting high rate video will overwhelm any buffer in no time, they must be able to write continuously at a high sustained rate and that requires a capable card. Why waste your time experimenting with lesser cards, only to potentially lose material as a result? IMO it is not worth the risk. The best card for the P3 Pro is the Sandisk Extreme Pro. No difference at all.Ĭould it be that DJI claims you need high speed cards, just to suggest the camera is so high end it can't do without? The same in the videos on the slow card, as it was on the Lexar class 10 card. I recorded some video samples indoor, at night, in low light, on auto. There is no truth in "Class 10 or UHS-1 rating required" as the Phantom 3 specs say. I'd say use anything with a minimum writing speed of 8 MB/sec and you're good. In fact, I noticed the video recording did not stop at once after touching the stop button, but seemingly continued for maybe 2 seconds, probably the buffer at work. Now that is actually less then the average bitrate of the video file, so I think the camera even has a decent writing buffer to deal with that. The card I used has an average writing speed of 6 MB/sec. In fact, I tested 4K video 25 Hz with an old class 4 card and guess what, no problem whatsover - no dropped frames, no lag nothing. However, I see no real argument to support that claim. However, DJI claims a UHS class 10 card is required. DJI says the video bitrate is up to 60 Mb/sec.
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