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AVCHD for pro applications: AG-AC160, AC130 and other AVCCAM gear.


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Old January 29th, 2009, 10:51 AM   #1
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HDMI Advantages on AVCHD Cameras

I generally just capture to the SDHC card on my AVCHD camera. But as I have started using the AVCHD output more, I have learned a few things that seem to make it a huge advantage over HDV cameras 1394 output.

I use the HDMI output for monitoring off my AVCHD camera. HDMI output is uncompressed digital, so the image quality is exactly what the imager sees and great for uncompressed capture. A 1394 TS off a HDV camera is a highly compressed 4:2:0 digital signal. The HDMI uncompressed signal is 4:2:2 colorspace which is great for keying. HDMI also supports cables up to 20M in length and 100+M is possible with special equipment.

A lot of folks seem to be using the BM Intensity Pro card for HDMI capture. Blackmagic Design: Intensity Seems like a good option.
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Old January 29th, 2009, 11:30 AM   #2
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It's a beautiful day in the neighborhood....
Isn't that a treat to know you have that capability?
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Old January 29th, 2009, 12:14 PM   #3
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i wish there was a $249 hdmi record solution for my macbook pro.

that would be very sweet.

be well

rob
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Old January 29th, 2009, 03:27 PM   #4
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I second that Rob.
Albeit the footage is pretty remarkable, it would be nice for those keying shoots.
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Old January 29th, 2009, 07:59 PM   #5
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Quote:
Originally Posted by Jeff Kellam View Post
I generally just capture to the SDHC card on my AVCHD camera. But as I have started using the AVCHD output more, I have learned a few things that seem to make it a huge advantage over HDV cameras 1394 output.

I use the HDMI output for monitoring off my AVCHD camera. HDMI output is uncompressed digital, so the image quality is exactly what the imager sees and great for uncompressed capture. A 1394 TS off a HDV camera is a highly compressed 4:2:0 digital signal. The HDMI uncompressed signal is 4:2:2 colorspace which is great for keying. HDMI also supports cables up to 20M in length and 100+M is possible with special equipment.
Actually Jeff, cameras like the Sony Z5 HDV camera also offer uncompressed, native sensor resolution from the HDMI output. ;)
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Old February 1st, 2009, 09:11 PM   #6
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I agree, having that HDMI output is quite nice.
As Ken notes, it is also available on Sony cams, and perhaps others. I just don't think I'd buy a cam without it now, I use it to output to my ne 8" monitor and its great.
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