DVL-Digest 483 - Postings: Index VX1000: PAL vs. NTSC VX1000: PAL vs. NTSC - "Perry" Jan may well be right about the worth of considering PAL over NTSC, but let us not forget that it does have considerably more vertical resolution. Although the analog PAL transmissions have more horizontal resolution than NTSC, the digital recordings share the same sample rate. The first time I ever visited NAB we took over a PAL component edit suite, the locals were amazed and kept asking if it was HiDef! The color gamuts for PAL and NTSC are slightly different only because the two controlling bodies chose different reference display phosphors. I very much doubt that the manufacturers change the color splitting filters in cameras to suit, so the basic colorimetry of cameras will be the same. The theoretical ideal PAL sensor response requires larger 'negative' lobes than does NTSC, and most professional PAL cameras have incorporated a 'Matrix' to generate more accurate colorimetry by simulating negative responses. I'm not sure that such matrices have been common in the NTSC versions. Film has never attempted such accuracy but seeks to provide pleasing and flattering results. It is interesting that recent video cameras aimed at the 'videography' market (eg DSR-300, GY-DV500) have 'Color Matrix' values aimed at more saturation rather than theoretical accuracy. Perry Mitchell Video Facilities http://www.perrybits.co.uk/ (diese posts stammen von der DV-L Mailingliste - THX to Adam Wilt and Perry Mitchell :-) [up] |
 slashCAM  News HD Camcorder database One-on-One Cam comparison About our tests About us |
|
|
