JVC NAB-2007 - page 33

JVC Professional APRIL 2007 NAB-2007 The ProHD Report

JVC’s ProHD came out of the HDV MPEG-2 consortium (Canon, JVC, Sharp,

Sony) but, of the four, only JVC elected to concentrate on full bandwidth native

acquisition, recording and transport by choosing the 1280x720p60 ATSC format.

Thus ProHD is uniquely qualified for cost effective HD ENG applications.

The HDV-related CODECs by Canon and Sony only covers 1080i60, with 4:2:0 sub-

sampling, and reduced bandwidth:

Canon HDV 1/3-inch 3CCD (models XH-A1/G1 & XL H1)

• Native imager acquisition 1440x1080i60 plus pixel shift/offset

• HDV recording of 1440x1080i60 max resolution

• Compressed MPEG-2 GOP transport stream = 25Mbps+

• Only XL H1 & XH G1 have HD-SDI out

• Only XL H1 has interchangeable lens

Sony HDV 1/3-inch 3CCD (models HVR-Z1/A1)

• Native imager acquisition 960x1080i60 plus pixel shift/offset

• HDV recording of 1440x1080i60 max resolution

• Compressed MPEG-2 GOP transport stream = 25Mbps+

• NO HD-SDI out

• All models have fixed lenses

Sony XDCAM HD 1/2-inch 3CCD (models PDW-F330/F350)

• Native imager acquisition 1440x1080i60

• Optical disc (PD) recording of 1440x1080i60 max resolution

• Compressed MPEG-2 GOP bitrate = Hi=35/Mid=25/Lo=18Mbps

(Hi-35 and Lo-18 are VBR recording)

• HD-SDI out only on F350

• Interchangeable lenses

Panasonic never joined the HDV consortium, choosing to offer a competitive model

to the HDV camcorders with the DVCPRO-HD capable HVX-200, and, just

announced before the NAB-2007, the HPX500:

Panasonic HVX200 1/3-inch 3CCD

• Native imager acquisition 960x540p60 plus 2-dimensional pixel shift/offset

• DVCPRO-HD recording of 1280x1080i60 max resolution

• DVCPRO-HD recording of 960x720p60 max resolution

• Compressed DVCPRO-HD bitrate = 120Mbps (approx gross)

• NO HD-SDI out

• Fixed lens