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Old January 17th, 2008, 12:08 PM   #1
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what would you perfer. hdv1080p or hdv 720p

so i know with hdv1080p you would have more resolution, but you are working with non square pixels. but in 720p you have less resolution but you have the square pixels , in my opinion working with square pixels is easier, what would you choose?
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Old January 17th, 2008, 06:33 PM   #2
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I would think that 1080p would take up significantly more space on the computers hard drive than would 720p. That would be more of a concern for me than non-square pixels. Have you been able to determine if your NLE lets you work in 1080? There might be more of a burden on the computer to deal with 1080, so you'd want a fast computer with lots of RAM.
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Old January 18th, 2008, 06:56 AM   #3
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HDV has no 1080p it's 1080i.
It's an ungoing war between the worlds 1080i or 720P.
There are comparison Charts available that the progressive 720p has multiple advantages over the interleased 1440x1080i as it are half fields of this number ending up in lower resolution.
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Old January 18th, 2008, 07:48 AM   #4
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HDV has no 1080p it's 1080i...snip..

Hmm I could have sworn my HV20 records 1080p... :P
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Old January 18th, 2008, 10:38 AM   #5
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there is no hdv 24p?????? i use a sony v1u 24p mode use cine form. and i have hdv 24p
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Old January 18th, 2008, 10:49 AM   #6
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What about the 30F and 24F mode offered by XH-A1?
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Old January 18th, 2008, 11:53 AM   #7
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Originally Posted by Daymon Hoffman View Post
Hmm I could have sworn my HV20 records 1080p... :P
I *think* what's going on is that the camera sees 1080p, but packages it as a 1080i, which is what HDV wants. So each frame has 2 fields, but those fields are really just 2 parts of what was a progressive frame (and can then be re-assembled as a progressive frame).

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Old January 18th, 2008, 02:29 PM   #8
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That's it.
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Old January 18th, 2008, 06:41 PM   #9
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HDV Specifications

HDV Specifications include 1080i and 720p. There is no 1080p. 24p in HV20 is converted to 1080i with telecine (3:2 pulldown) in order to comply with HDV specifications.
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Old January 18th, 2008, 06:46 PM   #10
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Yeah but my Canon XH-A1 stores 30F and 24F video on Mini-DV tape too. There are no pulldowns inserted to the video.
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Old January 18th, 2008, 07:03 PM   #11
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Yeah but it does not comply with the HDV specification.
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Old January 18th, 2008, 07:17 PM   #12
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Yes it does comply with the HDV specification. Those frame rates were added to the HDV spec when the cameras were introduced. Remember Canon is a member of the HDV consortium.

There is no 1080p60.

1080p30 is the same bandwidth as 1080i60 so it's not an issue.

Canon Frame modes are not an issue.
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Old January 18th, 2008, 08:07 PM   #13
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Well in getting back to the topic...

JVC's HDV implementation of 720p60 is full of major macro blocking due to the long GOP. I've been seriously disappointed in that regard.

Canon's HDV 1080i implementation is much cleaner as a codec, but it's not progressive, which is a bummer for me. Yes, it does 24p fps but I need 60p.

I haven't seen Sony's EX1 at 720p60 (I guess XDCAM is not HDV???) on my monitor yet but from what I hear it should be a winner here.

My 2 cents.
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Old January 18th, 2008, 08:08 PM   #14
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Chris, would you be able to play a miniDV tape recorded with Canon 30F and 24F on any HDV deck (any brand)?
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Old January 18th, 2008, 08:44 PM   #15
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Chris, would you be able to play a miniDV tape recorded with Canon 30F and 24F on any HDV deck (any brand)?
No. For example the JVC BR-HD50 deck can't play anything back but JVC 720p.
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