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DV25 or DV25i ? DV25 411 or DV25 420 ? What’s the difference please?
Hi!
I’m on a Mac running Avid Xpress Pro v4.3.1 (cos’ a project is ongoing and upgrade causes chaos) and I use mini-DV straight from camera to Mac.
Could you please help me find out what the difference is between setting your new project at DV25 or DV25i?
And in the capture tool then, what is the difference between DV25 411 OR DV25 420?Thanks!
Aurora
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4 Replies
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I is Interlaced, use that if your source is interlaced.
420 is for PAL, 411 is for NTSC.
Bouke
http://www.videoToolShed.com
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Thank you!
Sorry but what is interlaced ? Is mini-DV interlaced?
It must be because you have to select 25i to get to the DV25420 option…
Thank you for your patience.
Have a lovely day!
Aurora -
Sorry but what is interlaced ? Is mini-DV interlaced?
It must be because you have to select 25i to get to the DV25420 option…In Media Composer you have the option of, among many others, 25P PAL and 25i PAL as well as 24P NTSC and 30i NTSC.
Interlaced is a method used to reduce bandwidth during broadcast. It divides the frame (one complete image) of the TV signal into two fields. The first field with gaps is drawn followed by the second field that fills those gaps. A crude explanation but it’s what is happening.
If you were to select 25i PAL for example then you are selecting the format used for broadcast in the UK and many other countries in Europe as well as Australia and New Zealand. Within this project setting you then have options for the format you wish to import. DV25 420 would be used for PAL DV and DVCAM and DV25 411 for NTSC.
By selecting interlaced as your project setting, all new media and titles will be created in an interlaced form.
DV25P is a progressive format whereby your screen will be drawn in one go from top left to bottom right of the picture, ie. a complete image frame. This gives an inherent sharper image although the screen will re-draw at half the apparent speed of an interlaced image.
Progressive video has another ‘effect’ that many people like to use and that is the similar effect to film shooting where the movement in the image is slightly jerky and not as smooth as an interlaced image. Film usual gets shot at 24 frames per second, very close to the progressive frame rates used in many video cameras with a progressive shooting mode.
When you select a 25i PAL format, you’re specifying the format you intend for output.
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Thank you for your time and for sharing your great knowledge!
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