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Old June 27th, 2014, 12:40 PM   #76
Join Date: Sep 2013
Location: Austin
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Re: Panasonic AG-PX270


There had been reported issues with noise & artifacting in AVCIntra100. Would this be due to over sharpening, or other factors?


- AVC-Intra 100 is a great production CODEC, it's 4:2:2 and 10 bit, thus great for 95% of the programming you see on TV.
- The efficiency of H.264 / AVC is about 2:1 over the older MJPEG based CODECs, so AVC-Intra 100 compares favorably to D-5HD's 235Mbs, the then HD "gold standard" HD mastering format.
- That said if you take a tough shot and blow that up on a 50 ft theatre screen using a high contrast 2k / 1080p DLP, every little wrinkle appears larger than life.
AVC-Intra 100 was very carefully optimized to "behave" well (be predictable and stable) on the majority of programming content, some content, test patterns or unusual "synthetic" imagery may result in some artifacting,
- All CODECs will show such degradation, as usual you're mileage may vary. That's why critical post production processing is often performed as uncompressed.

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