Is XAVC Long-G 35 and 25 also 10 bit 4:2:2? at DVinfo.net

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Old December 15th, 2015, 10:05 AM   #1
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Is XAVC Long-G 35 and 25 also 10 bit 4:2:2?

Hard to find answer to this even on Sony sites. Just wondering if both of these are 10 bit and 4:2:2 or is it only the 50Mb version?
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Old December 15th, 2015, 01:33 PM   #2
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Re: Is XAVC Long-G 35 and 25 also 10 bit 4:2:2?

10bit 4:2:2 is only on the 50mbp/s setting.

35mbp/s and lower are 8bit 4:2:0.

50mbp/s 10bit 4:2:2 is already a very low 1080 bit rate as it is in h.264. So Sony would probably never try to push 10bit in anything lower than 50mbp/s.
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Old December 15th, 2015, 08:22 PM   #3
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Re: Is XAVC Long-G 35 and 25 also 10 bit 4:2:2?

XAVC-L HD on my FS7 is 10-bit for all the bitrates. I would imagine it would be the same on the X70 since it's using XAVC-L.
Alister stated it's 10-bit in all modes in his review:
Sony PXW-X70 Review | XDCAM-USER.COM

Also in the press release it states 10-bit for all 3 bitrates:
Sony Announces PXW-X70 XDCAM Professional Compact Camcorder
"When recording in XAVC, the PXW-X70 uses the MXF file format, efficiently compressing full HD (1920 x 1080) resolution using the MPEG-4 AVC/H.264 CODEC.
Image sampling is 4:2:2 10-bit with high-efficiency Long-GOP compression at 50 Mbps, 35 Mbps or 25 Mbps."
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Old December 16th, 2015, 12:39 AM   #4
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Re: Is XAVC Long-G 35 and 25 also 10 bit 4:2:2?

I don't remember there being a 25Mbps option on my record format option?????

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Old December 16th, 2015, 04:45 AM   #5
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Re: Is XAVC Long-G 35 and 25 also 10 bit 4:2:2?

60i and 50i can go down to 25mbp/s.
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Old December 16th, 2015, 04:55 AM   #6
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Re: Is XAVC Long-G 35 and 25 also 10 bit 4:2:2?

Oh.......my eyeballs do not see INTERLACED related objects, they get "tuned out"! :-D

Paul
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Old January 11th, 2016, 01:17 PM   #7
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Re: Is XAVC Long-G 35 and 25 also 10 bit 4:2:2?

Thanks guys.
So in conclusion the 35Mb mode is 10 bit, while the 25 Mb mode is 10 bit but only 50i or 60i correct?
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Old January 11th, 2016, 01:19 PM   #8
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Re: Is XAVC Long-G 35 and 25 also 10 bit 4:2:2?

That is correct.
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