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JVC GY-HM 600/700/800 Series Camera Systems
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Old June 1st, 2014, 02:32 PM   #1
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4:2:2 uncompressed or SD Cards????

Does anyone using the JVC 700's through 850's use external recorders to get 4:2:2 uncompressed? Or is the difference in quality negligible?

Just wondering, $ investment wise if it would make a huge improvement in picture quality? On some shoots I would want everything I can get quality wise, on others I probably don't need the best of the best, the SD cards would work fine.

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Old June 3rd, 2014, 11:38 AM   #2
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Re: 4:2:2 uncompressed or SD Cards????

We use both with our 790. For normal stuff, I'll shoot on the SD card. If I need the extra quality (like green screen shoots), I"ll use a Hyperdeck.
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Old June 4th, 2014, 11:46 AM   #3
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Re: 4:2:2 uncompressed or SD Cards????

Then there is a noticeable visual difference between the two? I would guess for news it would be fine, but if you are looking to shoot a 1/2 hour documentary, it would be wise to shoot 422 uncompressed?

Thanks for the input! Mike
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Old June 9th, 2014, 12:14 PM   #4
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Re: 4:2:2 uncompressed or SD Cards????

It really depends on what the subject of the documentary is. If there is a lot of movement, yeah, go for the higher bitrate or even uncompressed. But if there isn't, recording directly to the SD card may be just fine.

And even when I use the Hyperdeck, I'm capturing using the DNxHD codec at 220Mbps, not truly uncompressed.
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Old June 9th, 2014, 07:49 PM   #5
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Re: 4:2:2 uncompressed or SD Cards????

Thanks for the info. It probably depends on how much storage space you want to fill up too?

Thanks!
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