frame mode vs normal mode at DVinfo.net

Peter Warren · September 17th, 2003, 09:13 PM

Can anyone clarify the difference between frame and normal modes? Is normal mode effectively standard 30 frame interlaced (60i) scanning? And is frame mode 30 frame progressive (30p) scanning? And what happens in the various cinema setups? Is there a 24 p scanning capability?

Peter

Frank Granovski · September 18th, 2003, 01:23 AM

Frame mode is like progressive scan, but instead of capturing at one pass, like with progressive scan, 2 fields (1 odd, 1 even) are captured almost at the same time, making 1 frame---29.97 such frames per second. So on the tape, you record frames instead of fields. When you output via firewire, the frames are intact. If you out put via AV or S-video out, you once again have fields, but because every second (odd/even) pass was skipped, the footage will look a tad choppy in interlaced, and of course more choppy if you view these frames instead of fields say from your computer.

Interlaced just means (regular) fields, alternating odd and even, 29.97 X 2 per second.

There is no 24P with any consumer cam that I am aware of. The Pana Pro DVX100 has 24p, 30p and regular video, interlaced (fields).

Other features? You can download the PV-DV953 manual from www.onecall.com or the PAL MX500 manual from my website.

Peter Jefferson · September 19th, 2003, 03:28 AM

frame mode is also great for extracting stills from tape as well...

the frame processing incurs no interlacing artifacts so it can theoretically provide a "cleaner" picture

Peter Warren · September 19th, 2003, 09:22 AM

So, I am not quite clear...when should you and when should you not use frame mode?

Peter Jefferson · September 19th, 2003, 11:11 AM

1) i wouldnt use it on extremelyt fast action shots unless using a high speed shutter...

2) when panning do it slowly

3) perfect for weddings as image extraction for covers and content is immaculate

4) if running a Progressive scan TV or DVD you can encode to preogressive mode which will offer a more "film like" look.

frame mode is not true progressive... so its not perfect compared to the DVX kind of progressive, it works well thou and most of the time it helps in eliminating the home video feel

September 17th, 2003, 09:13 PM	#1
Peter Warren Regular Crew Join Date: Aug 2003 Location: DEnver, Colorado , US Posts: 45	frame mode vs normal mode Can anyone clarify the difference between frame and normal modes? Is normal mode effectively standard 30 frame interlaced (60i) scanning? And is frame mode 30 frame progressive (30p) scanning? And what happens in the various cinema setups? Is there a 24 p scanning capability? Peter

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September 18th, 2003, 01:23 AM	#2
Frank Granovski Outer Circle Join Date: May 2002 Location: Hope, BC Posts: 7,524	Frame mode is like progressive scan, but instead of capturing at one pass, like with progressive scan, 2 fields (1 odd, 1 even) are captured almost at the same time, making 1 frame---29.97 such frames per second. So on the tape, you record frames instead of fields. When you output via firewire, the frames are intact. If you out put via AV or S-video out, you once again have fields, but because every second (odd/even) pass was skipped, the footage will look a tad choppy in interlaced, and of course more choppy if you view these frames instead of fields say from your computer. Interlaced just means (regular) fields, alternating odd and even, 29.97 X 2 per second. There is no 24P with any consumer cam that I am aware of. The Pana Pro DVX100 has 24p, 30p and regular video, interlaced (fields). Other features? You can download the PV-DV953 manual from www.onecall.com or the PAL MX500 manual from my website.

September 19th, 2003, 03:28 AM	#3
Peter Jefferson Inner Circle Join Date: Apr 2003 Location: Aus Posts: 3,884	frame mode is also great for extracting stills from tape as well... the frame processing incurs no interlacing artifacts so it can theoretically provide a "cleaner" picture

September 19th, 2003, 09:22 AM	#4
Peter Warren Regular Crew Join Date: Aug 2003 Location: DEnver, Colorado , US Posts: 45	So, I am not quite clear...when should you and when should you not use frame mode?

September 19th, 2003, 11:11 AM	#5
Peter Jefferson Inner Circle Join Date: Apr 2003 Location: Aus Posts: 3,884	1) i wouldnt use it on extremelyt fast action shots unless using a high speed shutter... 2) when panning do it slowly 3) perfect for weddings as image extraction for covers and content is immaculate 4) if running a Progressive scan TV or DVD you can encode to preogressive mode which will offer a more "film like" look. frame mode is not true progressive... so its not perfect compared to the DVX kind of progressive, it works well thou and most of the time it helps in eliminating the home video feel