Would it be possible? at DVinfo.net

Martin Costa · August 8th, 2005, 05:52 AM

Hi my apologies if my question is obvioulsly flawed. I'm shooting a short in November and I'm very interested in using one of the new HDV cams. As i have a number of green/blue screen shots, would it be possible to shoot it using the JVC hd100/Z1. But by using the component outputs to feed the signal into a HDCAM recording deck. Would this give me the compression ratio of HDCAM?

Barry Green · August 8th, 2005, 10:05 AM

Yes, if you have access to an HDCAM deck that accepts analog component inputs, you could do what you suggest and bypass the HDV compression completely.

HDCAM doesn't record 720p, so you'd have to cross-convert the JVC signal from 720/60p over to 1080/60i.

Martin Costa · August 8th, 2005, 10:18 AM

Thanks Barry for your quick response, I shall now endevour to try and relieve my local rental firm of a Hd 100 and HDcam deck at "testing prices"

David Newman · August 8th, 2005, 10:29 AM

As HD-CAM only has 3:1:1 chroma resolution (8-bit) you will get better results with a Panasonic D5 desk which will capture 4:2:2 (10-bit.) This will help with keying. Again you will need a analog to HDSDI converter in the chain.

Martin Costa · August 8th, 2005, 12:47 PM

Thanks David, i'll start doing some homework on this.

August 8th, 2005, 05:52 AM	#1
Martin Costa Regular Crew Join Date: Feb 2005 Location: London UK Posts: 76 Images: 2	Would it be possible? Hi my apologies if my question is obvioulsly flawed. I'm shooting a short in November and I'm very interested in using one of the new HDV cams. As i have a number of green/blue screen shots, would it be possible to shoot it using the JVC hd100/Z1. But by using the component outputs to feed the signal into a HDCAM recording deck. Would this give me the compression ratio of HDCAM?

August 8th, 2005, 10:29 AM	#4
David Newman CTO, CineForm Inc. Join Date: Jul 2003 Location: Cardiff-by-the-Sea, California Posts: 8,095	As HD-CAM only has 3:1:1 chroma resolution (8-bit) you will get better results with a Panasonic D5 desk which will capture 4:2:2 (10-bit.) This will help with keying. Again you will need a analog to HDSDI converter in the chain. __________________ David Newman -- web: www.gopro.com blog: cineform.blogspot.com -- twitter: twitter.com/David_Newman

August 8th, 2005, 10:05 AM	#2
Barry Green Barry Wan Kenobi Join Date: Jul 2003 Location: North Carolina Posts: 3,863	Yes, if you have access to an HDCAM deck that accepts analog component inputs, you could do what you suggest and bypass the HDV compression completely. HDCAM doesn't record 720p, so you'd have to cross-convert the JVC signal from 720/60p over to 1080/60i.

August 8th, 2005, 10:18 AM	#3
Martin Costa Regular Crew Join Date: Feb 2005 Location: London UK Posts: 76 Images: 2	Thanks Barry for your quick response, I shall now endevour to try and relieve my local rental firm of a Hd 100 and HDcam deck at "testing prices"

August 8th, 2005, 12:47 PM	#5
Martin Costa Regular Crew Join Date: Feb 2005 Location: London UK Posts: 76 Images: 2	Thanks David, i'll start doing some homework on this.