JVC 250 720p vs 1080i at DVinfo.net

Ron Edwards · January 22nd, 2008, 03:30 PM

I am looking to purchase the JVC GY-HD250. My editing software does not currently support 720p. My understanding is I can use the DR-HD100 recorder with the JVC 250 and record in 1080i.

Can any one confirm this?

Thanks!
Ron

Adam Grunseth · January 22nd, 2008, 03:53 PM

I use the Firestore HD100, and as far as I'm aware it doesn't record 1080i. I believe it just records whatever the camera feeds it.... so if the camera is feeding 720p it records 720p. Perhaps if you connected it to a camera that fed it 1080i it would record that, but I do not believe it converts between formats.

Just curious.... what software are you using that doesn't support 720p?

Adam Letch · January 22nd, 2008, 06:36 PM

to tape, nor do they output through firewire, max is 720p, but they do have a feature where they can convert 720p to 1080i output via the built-in HD-SDI and component analog terminals.

from the spec sheet:

1080/60i: 74.25/1.001 MHz (4:2:0 component, up
conversion only), 1080/50i: 74.25 MHz (4:2:0 component, up conversion only)

You can do a easy upconversion in your NLE, 720p scales well to 1080i. 720p temporal resolution is better though.

Ben Lynn · January 22nd, 2008, 07:56 PM

Ron,

What editing software are you using? I wouldn't let the software limit your camera choice. I'm using vegas and it cuts 720p and 1080i without a hitch. And I know that there are a lot of other editors that do the same for not much money. Let us know what your using.

Ben

Maxene Kuek · January 23rd, 2008, 12:37 AM

Premiere also supports 720 p (liscensed from Cineform)... Our experience is that Cineform works GREAT... While a little expensive, it is well worth the $$$

Tim Dashwood · January 23rd, 2008, 03:38 AM

Quote:

Originally Posted by Ron Edwards

...My understanding is I can use the DR-HD100 recorder with the JVC 250 and record in 1080i.

The product you're probably thinking of is Convergent-Design's Flash XDR.

Ron Edwards · January 23rd, 2008, 02:24 PM

I am using the Macro Systems line of editors, CASABLANCA.

These editors will do simple straight cuts on 720p but all the special effects will not currently work. I have a ton of software that works great but if I change software then I also have to change hardware. Besides expensive I would have to learn all new software.

If I could get the JVC 250 into my editor at 1080i then I would not have a problem. Someday I think Macro Systems will fix the 720p interface problem.
I was hoping a hard disk drive would make the capture at 1080i and solve the problem.

Ron

January 22nd, 2008, 03:30 PM	#1
Ron Edwards Regular Crew Join Date: May 2004 Location: Fairview Heights, Illinois Posts: 148	JVC 250 720p vs 1080i I am looking to purchase the JVC GY-HD250. My editing software does not currently support 720p. My understanding is I can use the DR-HD100 recorder with the JVC 250 and record in 1080i. Can any one confirm this? Thanks! Ron

January 22nd, 2008, 06:36 PM	#3
Adam Letch Major Player Join Date: Feb 2006 Location: Perth, Western Australia Posts: 414	The HD250s don't record 1080i to tape, nor do they output through firewire, max is 720p, but they do have a feature where they can convert 720p to 1080i output via the built-in HD-SDI and component analog terminals. from the spec sheet: 1080/60i: 74.25/1.001 MHz (4:2:0 component, up conversion only), 1080/50i: 74.25 MHz (4:2:0 component, up conversion only) You can do a easy upconversion in your NLE, 720p scales well to 1080i. 720p temporal resolution is better though.

January 23rd, 2008, 02:24 PM	#7
Ron Edwards Regular Crew Join Date: May 2004 Location: Fairview Heights, Illinois Posts: 148	Update I am using the Macro Systems line of editors, CASABLANCA. These editors will do simple straight cuts on 720p but all the special effects will not currently work. I have a ton of software that works great but if I change software then I also have to change hardware. Besides expensive I would have to learn all new software. If I could get the JVC 250 into my editor at 1080i then I would not have a problem. Someday I think Macro Systems will fix the 720p interface problem. I was hoping a hard disk drive would make the capture at 1080i and solve the problem. Ron

January 22nd, 2008, 03:53 PM	#2
Adam Grunseth Major Player Join Date: May 2005 Location: Eugene Oregon Posts: 393	I use the Firestore HD100, and as far as I'm aware it doesn't record 1080i. I believe it just records whatever the camera feeds it.... so if the camera is feeding 720p it records 720p. Perhaps if you connected it to a camera that fed it 1080i it would record that, but I do not believe it converts between formats. Just curious.... what software are you using that doesn't support 720p?

January 22nd, 2008, 07:56 PM	#4
Ben Lynn Major Player Join Date: Mar 2003 Location: Bloomington, IL Posts: 636	Ron, What editing software are you using? I wouldn't let the software limit your camera choice. I'm using vegas and it cuts 720p and 1080i without a hitch. And I know that there are a lot of other editors that do the same for not much money. Let us know what your using. Ben

January 23rd, 2008, 12:37 AM	#5
Maxene Kuek Regular Crew Join Date: Oct 2005 Location: Auckland, New Zealand Posts: 30	Premiere also supports 720 p (liscensed from Cineform)... Our experience is that Cineform works GREAT... While a little expensive, it is well worth the $$$