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- Newsgroups: rec.video
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!darwin.sura.net!haven.umd.edu!wam.umd.edu!bladin
- From: bladin@wam.umd.edu (Ilana J. Getz)
- Subject: Re: Hi-8 Video Tapes
- Message-ID: <1992Dec22.024046.28343@wam.umd.edu>
- Sender: usenet@wam.umd.edu (USENET News system)
- Nntp-Posting-Host: rac2.wam.umd.edu
- Organization: University of Maryland, College Park
- References: <9212201446.AA20775@heartland.bradley.edu_> <1992Dec21.202132.14388@unet.net.com>
- Date: Tue, 22 Dec 1992 02:40:46 GMT
- Lines: 29
-
- In article <1992Dec21.202132.14388@unet.net.com> larson@loren.net.com (Alan Larson) writes:
- >In article <9212201446.AA20775@heartland.bradley.edu_> tquinn@heartland.bradley.edu writes:
- >
- > -> As far as the dropouts themselves, they define a dropout as a
- > -> temporary loss of signal that exceeds 15 microseconds. He agrees
- > -> that the more serious ones display as a sparkle, and you would be
- > -> unlikely to see a 15 microsecond dropout (too short). The
- > -> specification for initial dropout tendency (number of 15 usec
- > -> drops per minute) is about 5 for both Hi8 and SVHS in Sony's
- > -> professional line. He dropped a plug, noting that 3M Hi8 tape is
- > -> rated at 35 per minute, much worse. These ratings are for the
- > -> professional line.
- >
- >
- > This neglects the observation that 15 microseconds is about 1/4 the
- >width of the screen on a scan line, and is likely to be *very* obvious.
- >
- Of course, all of this depends on how much drop out compensation whatever
- source deck you are using has. The new Sony 9850 has top notch DOC, so
- most tapes look really clean. Cheaper consumer gear won't fare as well...
-
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