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<blockquote data-quote="Chacon" data-source="post: 117094" data-attributes="member: 13042">As others have mentioned, a constant shutter speed is essential. But the fact that you don't see the problem consistently also points to a playback performance issue. I have a blazing fast computer with a high-end graphics card; during playback in my NLE I sometimes experience lost frames when the system can't keep up. These lost frames are present only during editing. Once the final video is rendered, my D800 footage is perfectly smooth. The codec used by the D800 is designed more for compression during recording and not so much for uncompressing during playback. To reduce this problem, you can transcode into a less compressed format, but this results in larger files. You can also reduce the viewing resolution in your NLE. You might also consider shooting 24p @ 1/50th second, depending on your creative intent and delivery target. This will tax your computer a little less and can also smooth out motion if that is desirable. If you are uploading to the web, sites like YouTube and Vimeo can perform unnatural acts during encoding. You might want to try an experiment: Shoot the same scene at 1080/30fps, 1080/24fps, 720/30fps, and 720/24fps. Upload to youTube or Vimeo and see if you can if can see any difference.</blockquote>

[QUOTE="Chacon, post: 117094, member: 13042"] As others have mentioned, a constant shutter speed is essential. But the fact that you don't see the problem consistently also points to a playback performance issue. I have a blazing fast computer with a high-end graphics card; during playback in my NLE I sometimes experience lost frames when the system can't keep up. These lost frames are present only during editing. Once the final video is rendered, my D800 footage is perfectly smooth. The codec used by the D800 is designed more for compression during recording and not so much for uncompressing during playback. To reduce this problem, you can transcode into a less compressed format, but this results in larger files. You can also reduce the viewing resolution in your NLE. You might also consider shooting 24p @ 1/50th second, depending on your creative intent and delivery target. This will tax your computer a little less and can also smooth out motion if that is desirable. If you are uploading to the web, sites like YouTube and Vimeo can perform unnatural acts during encoding. You might want to try an experiment: Shoot the same scene at 1080/30fps, 1080/24fps, 720/30fps, and 720/24fps. Upload to youTube or Vimeo and see if you can if can see any difference. [/QUOTE]

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