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Old February 15th, 2005, 08:45 AM   #1
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Converting 50i HDV to 60i HDV, can it done?

Hi all,

As the title suggests, can you convert HDV 50i from a PAL Sony FX1 to HDV 60i (like as if its been shot with a Z1). If so, is it successful, any problems, image quality loss, etc etc.

I ask this as i'm debating whether to buy a Sony Z1 or the FX1 (PAL version)...

Thanks to all....
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Old February 16th, 2005, 06:22 AM   #2
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Ofcourse you can convert any frame rate to another. The question
is how good will it look (not very much usually). You will definitely
loose quality and will probably get stuttering motion (depending
on the programs/algorithms you/they are using).

In my opinion it is still far better to work with the standard of the
country you are in. Australia is PAL right? So stick with 50i.

Why would you want to convert or record in 60i anyway?
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Old February 16th, 2005, 08:23 AM   #3
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the reason I ask is because occasionally (prob once every few months or so) i'll be able to sell some footage to a US based cable TV channel but it needs to in HDV 60i mode.

If I can get away with converting HDV 50i to HDV 60i with decent results then i'd probably only buy a PAL FX1e.

FYI, the footage will be of animals in nature. It wont be any fast or action shooting, like fast pans or jerky camera movement. Will this make the conversion process better?
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Old February 16th, 2005, 10:24 AM   #4
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<<<-- Originally posted by Rob Lohman : Ofcourse you can convert any frame rate to another. The question
is how good will it look (not very much usually). You will definitely
loose quality and will probably get stuttering motion (depending
on the programs/algorithms you/they are using).

In my opinion it is still far better to work with the standard of the
country you are in. Australia is PAL right? So stick with 50i.

Why would you want to convert or record in 60i anyway? -->>>


Rob,

So the 25 to 24p conversion you talked about in this thread would not be playable on an NTSC TV unless it also when through "temporal interpolation"?
http://www.dvinfo.net/conf/showthrea...threadid=39265
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Old February 18th, 2005, 04:18 AM   #5
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James: your footage seems to be pretty good for conversion as
it is low movement footage, that seems to work better indeed.

I would definitely advice you to test this out in some way, before
buying any equipment.

Greg: yes and no. NTSC TV only understand 29.97 fps or 59.94
fields per second (30p and 60i). It cannot work with a 24p signal.
What a DVD player (and the 24p camcorders) do is known as 2:3
pulldown. Where fields are repeated to get 30 frames per second.
This still retains the 24 fps look, though.

So your DVD player (or camera) do a form of "temporal interpolation"
on the fly.
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