Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!seismo!rutgers!ames!ucbcad!ucbvax!cbosgd!cblpf!cblpe!feb
From: feb@cblpe.ATT.COM (Franco Barber)
Newsgroups: comp.graphics,rec.video
Subject: Re: VCR animation, junk called VHS
Message-ID: <603@cblpe.ATT.COM>
Date: Mon, 10-Aug-87 08:45:10 EDT
Article-I.D.: cblpe.603
Posted: Mon Aug 10 08:45:10 1987
Date-Received: Tue, 11-Aug-87 04:29:28 EDT
References: <1779@ccicpg.UUCP> <272@ndmath.UUCP>
Reply-To: feb@cblpe.ATT.COM (55216-Franco Barber)
Organization: AT&T Bell Laboratories - Columbus, Ohio
Lines: 53
Xref: mnetor comp.graphics:1042 rec.video:1619

In article <272@ndmath.UUCP> milo@ndmath.UUCP (Greg Corson) writes:
>in article <1779@ccicpg.UUCP>, harald@ccicpg.UUCP ( Harald Milne) says:
 
>> ala ROBOCOP). It just does not work. To do single frame animation, you have
>> to pre-roll and record. (Unless you don't care about vertical glitching or
>> frame continuity) And if your trying to do it with VHS, forget it.

>Also, I was under the impression that there were some of these VCR's
>running around that did the one-shot recording through built-in preroll
>control or something.

>Basically, all I'm interested in is something that can record a frame at
>a time with no glitches in the video.  It doesn't have to be broadcast
>quality, just reasonablly clean and at a cost under $5000 for the recorder
>and whatever other hardware is necessary.  I don't care what format it
>records in.

>Any suggestions?

>Greg Corson
>19141 Summers Drive
>South Bend, IN 46637
>(219) 277-5306  (weekdays till 6pm central)
>...seismo!iuvax!ndmath!milo


I have a Sony SL-HF1000. It prerolls. Honest. I didn't know this when
I bought it, then one day I observed a strange phenomenon:
	When I went from playback-pause to record-pause the machine would
	back up the tape about half a second.

I was at first upset that it did this: I thought it was messing up and
recording earlier than I wanted it to. I have since learned through
various sources that this is the correct way to do things.

I can find out how many frames it rolls back if someone needs to know
(did I mention the tape counter that counts Hours:Minutes:Seconds:Frames ?)

The only built-in close to single frame mechanism is a six-frame-at-a-time
mode. While in recording-pause, a flick of the record switch makes it
record six frames then go back into record-pause. I haven't made
extensive use of this feature, so I can't comment on how well it
works.

If the single frame recording is going to be supervised by a person,
it should be possible to get better than 6 frame accuracy by
flipping back into playback-pause and backing up the tape a few
frames. I have always meant to play with this, but I just haven't
been able to get around to it.

-- 
Franco Barber    AT&T Bell Laboratories, Columbus, Ohio 
..!cbosgd!cblpf!cblpe!feb                (614) 860-7803