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Sony HVR-V1 / HDR-FX7
Pro and consumer versions of this Sony 3-CMOS HDV camcorder.


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Old March 13th, 2007, 10:38 AM   #1
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V1U chips scanning @ native 1080?

I am trying to find out if the chips on the V1 are "NATIVE" 1080 or if there is some mojo going on to get to that resolution. Out of all the info I have found on this cam, the closest language I can find is "TRUE" 1080/24p scanning. Anybody have a solid answer for this?
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Old March 13th, 2007, 11:52 AM   #2
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My understanding is that the chips actual resolution is 960x1080. There is all kinds of mojo going on in going between the chips and the final format. That's true of any camera.
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Old March 14th, 2007, 02:47 AM   #3
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Originally Posted by Brett Sherman View Post
My understanding is that the chips actual resolution is 960x1080. There is all kinds of mojo going on in going between the chips and the final format. That's true of any camera.
That is correct; the resolution of the progressive sensors are 960 x 1080. Then it goes through an interpolation process (probably some sort of horizontal pixel shift) which boosts the resolution to 1920 x 1080p 4:2:2. It then goes through a resolution down-convert (1440 X 1080i 4:2:2) before it's processed to HDV (1440 x 1080i 4:2:0).

I'm not sure of the advantage of progressive scanning since it is changed to interlace before any output, including HDMI and component. Once it's recorded to tape or to the hard drive via ILink (firewire); it is recorded as HDV.
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Old March 18th, 2007, 06:31 PM   #4
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The Canons have a native 1440x1080 chip, but it pixel shifts to 1920x1080. It's higher resolution than the other HDV cameras, but I still think all of them are great.

FYI, the HVX200's sensor is at 960x540.

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Old March 18th, 2007, 09:02 PM   #5
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FYI, the HVX200's sensor is at 960x540.

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And FYI, JVC new "Full HD" (record 1920x1080) camcorder also uses 960x540 CCDs. This requires hyper mojo!

Note that not all mojo is equal -- depends on the technology employed. And, when there is motion -- mojo tends to be less effective and resolution comes closer to that provided by the chips.
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Old March 18th, 2007, 09:14 PM   #6
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I agree, different company, different tech.

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Old March 20th, 2007, 08:54 PM   #7
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My understanding is that the chips actual resolution is 960x1080. There is all kinds of mojo going on in going between the chips and the final format. That's true of any camera.
I believe the JVC HD100/200 series is a full 1280x720 chip producing 1280x720 footage.
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Old March 20th, 2007, 09:02 PM   #8
 
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that's correct, the JVC HD 100/200 are full raster imagers.
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