PAL Hi8 chroma when played on Digital8 camcorder: 4:2:2 or 4:2:0?
I have some Hi8 tapes that I am preparing to transfer to a digital format. It is proving difficult to purchase a stereo Hi8 camera that is in better than average condition, and I am considering purchasing a Digital8 camera for this purpose, as they can often be found on ebay in near-mint condition.
I will be using the camcorder's s-video out to capture via Blackmagic Intensity Pro 4K. My question is this: will the chroma of old Hi8 tapes be downgraded from 4:2:2 PAL to 4:2:0 when played back on a Digital8 camorder to make it DV-ready? Or is it only when the video is recorded onto tape that the 4:2:0 subsampling occurs? |
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I've also experienced video levels clipping with in-built DV-encoder/output. No clipping and better picture quality from s-video to capture card. YMMV.
(4:2:2 Vs 4:2:0 doesn't make difference per se because Hi8 doesn't have 4:2:2 details I think). |
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If I understand you correctly, then Digital8 camcorders do not directly feed their analog s-video output with analog Hi8 footage directly from tape. Instead, all analog PAL video played by a Digital 8 camera would go through the following conversion before being sent to the s-video out port: 4:2:2 analog recording on tape -> digital capture -> converted to DV-AVI (with 4:2:0 subsampling and DV compression artifacts) -> converted back to analog -> s-video out |
I actually only want to use the s-video port to feed the capture card, just as you suggest. My question is whether the s-video output will be fed the raw 4:2:2 analog video direct from tape, or is converted to/from DV-AVI before being output.
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I guess there's no categorical answer because no-one has tested every camera. With my DCR-T8000E it's "raw". Also there's no 4:2:0 or 4:2:2 sampling with analog video. Those are digital terms.
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