Quote:
Originally Posted by sltr
i'm not an expert but is not Real HD shot in HDVPRO or some other format that records in progressive scan- i.e. minimal compression and full data on each frame?
that way there is no real editing issues in your NLE.
not for sure though
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Ok here you go .. maybe this will help ya understand HD formats better
HDCAM. The Sony HDCAM format supports 1080 resolutions at frame rates of 24p, 25p, 50i, and 60i. HDCAM stores the video at 1440 x 1080, which is a 33 percent reduction horizontally from 1920. It also uses a unique color sampling of 17:6:6, which means that HDCAM has only half the color detail of other HD formats. HDCAM is 4.4:1 compressed and is 8-bit, but supports 10-bit input and output.
D5-HD. The Panasonic D5-HD format uses the D5 tape shell. Unlike HDCAM, D5-HD can do 720/60p, 1080/24p, 1080/60i, and even 1080/30p. D5-HD compresses at 4:1 in 8-bit mode and 5:1 in 10-bit mode, and supports 8 channels of audio.
DVCPRO-HD. This Panasonic HD format, sometimes called D7-HD, is based on the same tape shell used for DVCAM and DVCPRO. D7-HD does 720/60p and 1080/60i, with 1080/24p in development. It uses 6.7:1 compression, and supports 10-bit input and output per channel. DVCPRO-HD supports 8 channels of audio.
HDV. This format is one of a number of emerging formats that are being used in lower-cost cameras. HDV was introduced with JVC's groundbreaking professional consumer (prosumer) HD camera, the JY-HD10, which records highly compressed MPEG-2 on a mini DV tape.
HDV is a MPEG-2 transport stream that includes a lot of error correction. Its video uses interframe-compressed MPEG-2, at 19 megabits per second (Mbps) for 720p and 25 Mbps for 1080i. Audio is encoded with 384 Kbps MPEG-1 Layer 2 stereo. The interframe encoding enables HDV to achieve good quality video at lower bit rates, which means much more content per tape, but it increases the difficultly of editing the content. The next article in this series will provide additional details about interframe encoding.
Get the general Idea ? There is a difference even when using the same format form different manifactures .. which in the end doesn t help anyone .. but thats how manifactures think .. the more formats they can throw at you the higher they're overall sales will be .. it's the same as putting out a camera with all the same cababilities as it's bigger brothers but just not making those functions available till the second and thrid generation of those cameras come out