Frame rates
- Thread starter eero
- Start date
Moseph
Veteran
60i Is the frame rate for standard definition TV. I believe it was actually created as a workaround for the fact that engineers couldn't get a CRT to refresh a fast enough in progressive, and then of course we were stuck with it for years. 60i is also one of the many immediate dead giveaways that you've shot something on video, not film.
60p pretty much exhibits the same quality in terms of motion but since it's progressive frames rather than interlaced fields, it has double the resolution. 60p is often conformed to a slower framerate, this process is known as overcranking.
30p is pretty self explanatory, a bit more flexible than 24p when it comes to motion, but not quite 60i. It's far better than 60i for things that are going to the web because computers can't display interlaced video properly.
24p is what super 35 film is shot with. You gotta be careful with judder, but of all the framerates, it will look the most cinematic.
There are many more framerates out there that are typically used for over or undercranking, but the typical rates that video is displayed in for the final product are 60i, 30p, and 24p.
Standard definition video is 4:3, HD is 16:9. Aspect ratios are pretty much independent of the framerate, except for the fact that no such thing as 720i exists. As far as film goes, regular 8mm was 4:3, when they went to super 8, by removing the sprocket holes on one side, room was made for a 16:9 frame. Same thing goes for 16mm, and I'm guessing 35mm, but I could be completely wrong.
60p pretty much exhibits the same quality in terms of motion but since it's progressive frames rather than interlaced fields, it has double the resolution. 60p is often conformed to a slower framerate, this process is known as overcranking.
30p is pretty self explanatory, a bit more flexible than 24p when it comes to motion, but not quite 60i. It's far better than 60i for things that are going to the web because computers can't display interlaced video properly.
24p is what super 35 film is shot with. You gotta be careful with judder, but of all the framerates, it will look the most cinematic.
There are many more framerates out there that are typically used for over or undercranking, but the typical rates that video is displayed in for the final product are 60i, 30p, and 24p.
Standard definition video is 4:3, HD is 16:9. Aspect ratios are pretty much independent of the framerate, except for the fact that no such thing as 720i exists. As far as film goes, regular 8mm was 4:3, when they went to super 8, by removing the sprocket holes on one side, room was made for a 16:9 frame. Same thing goes for 16mm, and I'm guessing 35mm, but I could be completely wrong.