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Old January 22nd, 2015, 10:03 PM   #1
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HM600 green screen & HDMI/SDI output

Hi Everyone,

Considering the HM600 for both ENG and green screen (talking head on virtual set).

1. Is it true that, though the HM600 has 12-bit 4:4:4 sensors (according to JVC marketing), it apparently only records to 4:2:0, even at 50 mbps, even with the new firmware?

2. Does either its HDMI or SDI output offer 1080p 4:2:2 (even if only 8-bit), or is it interlaced, 4:2:0?

3. Has anyone tested, or would anyone be willing to test, the HM600/650 for green screen? Don't see any tests online.

Thanks a lot,
Tom
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Old January 23rd, 2015, 04:48 PM   #2
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Re: HM600 green screen & HDMI/SDI output

The recorded signal is 4:2:0 on the SD cards. The SDI output is 4:2:2. You need an external recorder to capture that.
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Old January 23rd, 2015, 05:31 PM   #3
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Re: HM600 green screen & HDMI/SDI output

Thanks, William, I appreciate your help. Yes, I would capture with a Blackmagic capture card for green screen.

Do you know if it's 8-bit or 10-bit; and can output full 1080 progressive?

EDIT: My bad, HD-SDI is only 1080i, so I guess it would not output 1080/60p but would output 1080/30p albeit over an interlaced signal (if that makes sense)?

And does the HDMI out have the same limitation?

Thanks,
Tom
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Old January 24th, 2015, 09:28 AM   #4
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Re: HM600 green screen & HDMI/SDI output

Let me get with JVC for some answers. That camera is $2995 right now with the $1200 instant rebate applied.
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Old January 24th, 2015, 05:06 PM   #5
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Re: HM600 green screen & HDMI/SDI output

I believe that HD-SDI and HDMI have the same specs regarding interlace. (and yes, 30p is sent cleanly as well as 24P). I know HD-SDI is 10bit but HDMI I am not sure.
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