Why exclude digital 8

Спасибо, что смотрите! Я старался :) Перелопатил полторы сотни журналов. Середина, где про отверстия, проседает немного. Может я подрежу ее потом. Я забыл вставить несколько красивых картинок с магнитной лентой в разрезе. Стандартная 8-мм лента 13 мкм, потом 10 мкм, потом 9.25 мкм, и трехчасовая 7 мкм. Я так понимаю, что у трехчасовой все три отверстия справа открыты. Я не стал ее покупать, чтобы проверить :) Я и так специально купил ME, чтобы посмотреть на нее. Я думал, что у ME будут оба отверстия слева открыты, и был удивлен, что MP Hi8 отверстие закрыто. Digital8 камера у меня в долговременной аренде от друга, он одно время даже выбросить ее хотел. У нее совершенно ломовой TBC, лучше тех, что в медицинском Мицу и в камере JVC: стабилизирует и строчные импульсы (то, что отдельные товарищи называют "Line TBC"), и кадровые ("Frame TBC"). Я теперь через нее прогоняю VHS-кассеты, которые подергиваются на других видаках. Жаль, что верха обрезаются по яркости и цвету, и ведь вроде ничего не делаю: просто скидываю в DV и все. Надо будет еще раз посмотреть, может, там какой-то дополнительный уровень есть, который надо отключить. У японцев цифровой ноль с самого низа, а у американцев есть pedestal 7.5 IRE, но камера продана была в Америке, и записи сделаны там же, правда, другой камерой.

@@ConsumerDV Мне очень нравилась в оцифровке PAL версия SONY DCR TRV-120! Сравнима по качеству с Canopus ADVC-300 и почти идентична Canopus twin packt 100. Но я сравнивал по соотношению детализация-шумность.

Good point! TBC indeed needs analog video to be digitized. But DV uses uncompressed digital video as input, so I am pretty sure that one of the stages includes uncompressed video. The very last 20 seconds of this video show Video8 footage digitized through S-video and through DV port. DV video has highlights blown out. I don't think this is an issue with DV per se, just a botched A/D conversion, or maybe the components of the camera went out of the spec.

Thank you! I should have been more concise regarding tape width. Standard 8-mm tape thickness up to 90 minutes is 13 μm, 2-hour tape is 10 μm, 2.5-hour tape is 9.25 μm, and 3-hour tape is 7 μm. Regarding DV tape, standard 60-min MiniDV cassettes are loaded with 70 m of 7 μm tape, but there were 80 min cassettes with 93 m of 5.5 μm tape, whoa! I don't know whether there was a thinner tape. I haven't used DVCAM tapes. I bought several DVCPRO medium-sized cassettes to compare them to 8-mm, but I did not include it in the video. Maybe some other time :) Interesting that DVCPRO M cassette is very similar in size to 8-mm cassette. A 2-hour 8-mm cassette has 106 m of tape, good enough for 60 minutes of DV video @ 25 Mbit/s. A standard DVCPRO cassette has 137 m of tape, good for 66 min of video @ 25 Mbit/s or 33 min @ 50 Mbit/s. All in all, little difference. I am not sure what was the point of the DV form-factor. Maybe they could not downsize 8-mm cassette? Another reason I've heard is that Panasonic and especially JVC wanted a new form-factor to prevent Sony from re-using its hardware. I have S (MiniDV), M and L. I don't have XL, they are too expensive.

Any device that accepts composite video and analog audio will do. To ensure you have audio in both channels you can get a Y-cable to split a single audio channel into two, or you can do it in software. I cannot recommend specific hardware and software since I don't use Mac for capturing, I use Windows.

Yes, there were some reports that allegedly mixing MP and ME tapes on the same machine causes head clogging and dirt on the pinch roller. This was about MiniDV, not Digital8. MiniDV has 10 μm track pitch, DVCAM - 15 μm, DVCPRO - 18 μm, Digital8 - 16.34 µm. So, maybe this is not as relevant for larger 8-mm heads as for MiniDV. Also, I believe Sony researched the matter and found no evidence for the claim. Early ME tape was flaky, so maybe because of this Panasonic specified only MP tape for its DVCPRO format. I've used both ME and MP tapes on my DV camcorder and did not experience any issues, but I recorded just a couple of dozen tapes, hardly enough to clog the heads.

If you don't know what kind of 8-mm tape you have, Digital 8 camcorder is a safer choice, as it can play both analog and digital recordings.

Same as with SVHS, depending on tape quality it can be almost as good as using proper high-grade tape. But punching or drilling a hole can damage the tape, which is why JVC developed SVHS-ET, but Sony did better and switched to digital. Standard tape can be used for Digital8 officially, no extra holes required.

Thanks! I think that 4K is overkill for VHS or Video8, although uploading to YT at 1080p seems to preserve more detail than 720p just because YT affords more bitrate for higher resolution. The Digital8 camcorder that I have has built-in TBC and a very good one, so this is my go-to solution for 8-mm tapes. For VHS I have got a Panasonic VHS/DVD recorder, which works sufficiently well: kzfaq.info/get/bejne/gsd4apajzaiskp8.html