Choosing the Appropriate Frame Rate for Your Underwater Video Project
Am sure this will be controversial anyway let's see
Am sure this will be controversial anyway let's see
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Seems like you have some of your facts incorrect. Framerate standards are defined by Society of Motion Picture and Television Engineers - Wikipedia. In 2007 they published SMPTE ST 2036-1 which defines the standards for UHDTV1 (4k) and UHDTV2 (8k). The framerate standards for 4k or 8k video are 23.976, 24, 25, 29.97, 30, 50, 59.94, 60, 100, 119.88, or 120 Hz with progressive scan.
It looks to me like you're mixing up details from the old SD and UHD. HD (1080p) was when the world moved away from 30hz (NTSC) to 60hz. 4k30 is a blight that exists because extremely inexpensive camera hardware can easily produce this output.
The standard has been updated 3 times since initial publication. Most recently it was updated in 2014, the full document can be found here: ST 2036-1:2014 - ST 2036-1:2014 - SMPTE Standard - Ultra High Definition Television — Image Parameter Values for Program Production - SMPTE Standard
I just set my Go-Pro 5 to 60FPS on 2.7k Res (4K does not support 60FPS, only 30) and let it run .
Some people prefer the extra quality of 4K over the extra frames, i dont.
I have taken quite a few videos with the RX100 and at the beginning I used the 50 fps more because it had a higher bitrate. I then moved to 25 fps and even removed the active stabiliser.I don't follow half of what you guys are talking about but that I can tell it also has little to do with me choosing frame rates. The 1st gen GoPro I used to use, and the Oly XZ-1 both looked plainly jerky at 30fps even for slow panning tropical reef video. For faster moving scenes, like fish or surface feature motion in surge, fuggedaboudit: 60fps with the GoPro looked much smoother. Now I use a 4th gen GoPro, and Sony RX100, but have stuck with 60fps based on that earlier impression. So for some cameras at least the choice seems simple, irrespective of some human perception dogma taken in isolation. Maybe there are some cameras that produce smooth 30fps underwater video, but those two at least didn't.
You are free to do what you wantPanning for me means slow swimming with fixed camera hold. Regardless of the underlying physics or operator effect, 60fps consistently looked better to me than 30 fps. That included stationary use where scenery is moving rapidly. Is there some reason I should view slower framerate as aspirational?