60i -- 29.97 -- 59.94

Although 59.94 CAN be progressive. The Varicam shoots DVCPRO HD at 59.94, and that is 60fps, not 30fps. And on that the camera can record 30p or 24p, and flag that footage so that when you capture the extra frames will be left out.

Shane

Nothing. They are all mean essentially the same thing.

60i is shorthand meaning (approx.) 60 interlaced fields per second.

59.94 is the more precise way of indicating 60i.

29.97 is the FRAME rate. 2 fields per frame. If something is 60i then it plays at a 29.97 frame rate. 2 x 29.97 = 59.94

Make sense?

Andy

I am guessing that 60i is your format (HDV 1080i60, for example). 29.97 is the standard video frame rate. There are three general frame rates for video 25, 23.98, and 29.97. 29.97 is universal and is the closest to a film rate quality.

Hope that answers your question.

29.97 is universal and is the closest to a film rate quality

That's not really true.

Universal only in that it's NTSC frame rate - PAL is 25, so I'm thinking most of Europe and the British Isles are gonna be less than happy with the thought that NTSC is universal.

Finally, most Hollywood movies are shot at 24fps, so 23.98 is closest to a film rate...

Patrick

Shane Ross wrote:
Although 59.94 CAN be progressive. The Varicam shoots DVCPRO HD at 59.94, and that is 60fps, not 30fps.

True. I forgot about that. But isn't that really just for overcranking the camera to get nice slo-mos in 29.97 sequences? I mean I've never edited in a 60fps timeline and I don't even know of any decks that play back 60fps. Maybe the D5...I'd have to check the settings.

Still, technically you're right, but I'm guessing that's not the reason the poster was confused.

Andy

Lets get things right !

You got to types of scanning in HD : One is INTERLACED(i) and the other is PROGRESSIVE(p).

All stuff that is in INTERLACE format can run at either : 25Fps, 29,97Fps or 30Fps.

INTERLACE mean that for each frame, you got 2 FIELDS (1 field is half a frame). So when you combine 2 Fields together you got a frame.

25Fps = 50 Fields per second
29,97Fps = 59.94Fields per second
30Fps = 60Fields per second

Considering these things you CANT have 1080i60 at 60 frames per second. In the interlace mode IT IS IMPOSSIBLE neither 59.94 frames per second. Its either 25Fps(PAL) 29.97 or 30Fps.

The thing that confuse peoples is that in PROGRESSIVE mode, the way to name the format change but is really similar of the way to name INTERLACE format.

Exemple : 720p60

In this case BECAUSE we are in PROGRESSIVE mode the number 60 doesnt represent FIELDS anymore but FRAMES.

So whatever the format you want to use in PROGRESSIVE mode, the number that come after 1080p or 720p MEAN FRAMES NOT FIELDS.

So in Progressive mode you can have :

60 FPS
59.94FPS
50FPS(PAL)

Dont forget those PROGRESSIVE name are not the same as the PsF names.

PsF mean : Progressive Segmented Frames

In this mode you DONT have either 60 Frame per second or 59.94

The frame rate you can have in PsF is :
23.98
24
25
29.97
30

Thats it ! So now you know.