a 4k frame will have more pixels than a 1080p frame. Its kind of raw in that the bars represent the bitrate per frame based on pixel density. I made this graph for the mavic and added some known at the time figures for the air. The more bits available per pixel the better the quality of the captured image. The only real fix for this is to capture at a more optimal bitrate at the expense of resolution. That seems to (almost?) completely fix it. Thanks for the great reply! So the sharpness +1 will help some, but the 8'th frame issue will always be there then? I might have to consider buying the neat video plugin then. Remember, your output bitrate should only be as high as the highest input bitrate from the Mavic) because you wont get any better quality from a higher bitrate at output, just a bigger file and require more processing power to watch the footage. Make sure you are outputting at the same framerate you are working with or you will get stutter due to the differences in framerates.
You can add a tiny amount of blur in post to counter this if you want.
The only way to combat this is to use +1 sharpness. This can cause mush in some areas, more noticable in things like branches in trees or similarly noisy shots.
The Mavic employs noise reduction when the sharpness is set to 0,-1,-2,-3. I know people will tell you to use less sharpening so you can add it back later in post, this is true however. In solid areas this becomes much more visible as the changes between frame 1 and 8 are less between the keyframes but as the footage is moving it looks like its catching up with itself. Basically it will take 1 frame as a keyframe (the whole image) then compress frames 2-7 by only saving the changes between each frame and binning the rest then take another keyframe (frame 8). I could just see some compression artifacts due to the low bitrate (60Mbps) for 4k on the Mavic and the inter-frame compression catching up every 8 frames but not much else.The inter-frame compression will be more observable in areas of almost solid colours or with little changing. Remember, your output bitrate should only be as high as the highest input bitrate from the Mavic) because you wont get any better quality from a higher bitrate at output, just a bigger file and require more processing power to watch the footage. The only way to combat this is to use +1 sharpness. Basically it will take 1 frame as a keyframe (the whole image) then compress frames 2-7 by only saving the changes between each frame and binning the rest then take another keyframe (frame 8). I could just see some compression artifacts due to the low bitrate (60Mbps) for 4k on the Mavic and the inter-frame compression catching up every 8 frames but not much else.The inter-frame compression will be more observable in areas of almost solid colours or with little changing.
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