I currently have a sony digital 8 type camcorder, as well as canon sd400 camera which can take video. I like the idea and size of the current hard dirve camcorders, but quality of video is of utmost importance to me. How does the quality of video compare on these models? Thank you,
Angela.
since all digital video is compressed, the most accurate figure of merit for quality is the data rate, expressed in megabits per second. Your digital 8 camera has a data rate of 25 mbps, the canon sd400 in its best mode is 11 mbps. There are other differences, the digital 8 has stereo audio, the canon is mono. the compression scheme for digital 8 is DV, and for the canon is Motion-Jpeg (not as good). The pixels for DV (720 per line) converts to analog video much more precisely than the pixels for VGA (640) will. DV is interlaced, m-jpeg is not, resulting in superior fluid motion presentation.
August 4th, 2009 at 11:37 pm
since all digital video is compressed, the most accurate figure of merit for quality is the data rate, expressed in megabits per second. Your digital 8 camera has a data rate of 25 mbps, the canon sd400 in its best mode is 11 mbps. There are other differences, the digital 8 has stereo audio, the canon is mono. the compression scheme for digital 8 is DV, and for the canon is Motion-Jpeg (not as good). The pixels for DV (720 per line) converts to analog video much more precisely than the pixels for VGA (640) will. DV is interlaced, m-jpeg is not, resulting in superior fluid motion presentation.
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