what would you perfer. hdv1080p or hdv 720p at DVinfo.net

Dave Morgan · January 17th, 2008, 12:08 PM

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?

Ken Hull · January 17th, 2008, 06:33 PM

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.
Ken

Marc Colemont · January 18th, 2008, 06:56 AM

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.

Daymon Hoffman · January 18th, 2008, 07:48 AM

Quote:

Originally Posted by Marc Colemont

HDV has no 1080p it's 1080i...snip..

Hmm I could have sworn my HV20 records 1080p... :P

Dave Morgan · January 18th, 2008, 10:38 AM

there is no hdv 24p?????? i use a sony v1u 24p mode use cine form. and i have hdv 24p

Taky Cheung · January 18th, 2008, 10:49 AM

What about the 30F and 24F mode offered by XH-A1?

Ken Hull · January 18th, 2008, 11:53 AM

Quote:

Originally Posted by Daymon Hoffman

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).

Ken

Ian G. Thompson · January 18th, 2008, 02:29 PM

That's it.

Pedanes Bol · January 18th, 2008, 06:41 PM

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.

Taky Cheung · January 18th, 2008, 06:46 PM

Yeah but my Canon XH-A1 stores 30F and 24F video on Mini-DV tape too. There are no pulldowns inserted to the video.

Pedanes Bol · January 18th, 2008, 07:03 PM

Yeah but it does not comply with the HDV specification.

Chris Hurd · January 18th, 2008, 07:17 PM

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.

Justin Ferar · January 18th, 2008, 08:07 PM

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.

Pedanes Bol · January 18th, 2008, 08:08 PM

Chris, would you be able to play a miniDV tape recorded with Canon 30F and 24F on any HDV deck (any brand)?

Justin Ferar · January 18th, 2008, 08:44 PM

Quote:

Originally Posted by Pedanes Bol

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.

January 17th, 2008, 12:08 PM	#1
Dave Morgan Major Player Join Date: Feb 2006 Posts: 293	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?

January 18th, 2008, 06:56 AM	#3
Marc Colemont Major Player Join Date: Nov 2005 Location: Belgium Posts: 695	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. __________________ Marc Colemont - Belgium - http://www.mc-productions.be JVC GY-HM850's, HM890, HM600

January 18th, 2008, 06:41 PM	#9
Pedanes Bol Regular Crew Join Date: May 2007 Location: Boston MA Posts: 167	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. Attached Thumbnails

January 18th, 2008, 07:17 PM	#12
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,366 Images: 513	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. __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

January 18th, 2008, 08:07 PM	#13
Justin Ferar Major Player Join Date: Aug 2006 Location: Larkspur, CA Posts: 378	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. __________________ www.justinferar.com www.weddingsonfilm.com

January 17th, 2008, 06:33 PM	#2
Ken Hull Major Player Join Date: Nov 2007 Location: San Diego, CA Posts: 240	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. Ken

January 18th, 2008, 10:38 AM	#5
Dave Morgan Major Player Join Date: Feb 2006 Posts: 293	there is no hdv 24p?????? i use a sony v1u 24p mode use cine form. and i have hdv 24p

January 18th, 2008, 10:49 AM	#6
Taky Cheung Inner Circle Join Date: May 2007 Location: Los Angeles, USA Posts: 2,114	What about the 30F and 24F mode offered by XH-A1?

January 18th, 2008, 02:29 PM	#8
Ian G. Thompson Major Player Join Date: Jan 2007 Location: Rockledge, Florida Posts: 351	That's it.

January 18th, 2008, 06:46 PM	#10
Taky Cheung Inner Circle Join Date: May 2007 Location: Los Angeles, USA Posts: 2,114	Yeah but my Canon XH-A1 stores 30F and 24F video on Mini-DV tape too. There are no pulldowns inserted to the video.

January 18th, 2008, 07:03 PM	#11
Pedanes Bol Regular Crew Join Date: May 2007 Location: Boston MA Posts: 167	Yeah but it does not comply with the HDV specification.

January 18th, 2008, 08:08 PM	#14
Pedanes Bol Regular Crew Join Date: May 2007 Location: Boston MA Posts: 167	Chris, would you be able to play a miniDV tape recorded with Canon 30F and 24F on any HDV deck (any brand)?