Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!shadooby!samsung!brutus.cs.uiuc.edu!wuarchive!texbell!attctc!jolnet!swan
From: swan@jolnet.ORPK.IL.US (Joel Swan)
Newsgroups: comp.sys.amiga
Subject: Re: Camcorder/Genlock Question
Summary: No recording while camera outputs
Message-ID: <2086@jolnet.ORPK.IL.US>
Date: 12 Nov 89 09:16:36 GMT
References: <776@orange9.qtp.ufl.edu>
Reply-To: swan@jolnet.UUCP (Joel Swan)
Distribution: na
Organization: Media Specialties Ltd.
Lines: 58

In article <776@orange9.qtp.ufl.edu> sutherla@qtp.ufl.edu (scott sutherland) writes:
:
:
:	Okay all you video guru's, I have a neophyte question. I was
:just in a local video store and was shown a used 8 mm camcorder. It
[lots of descriptive stuff cut]

:
:	Let's say that I want to GENLOCK my Amiga graphics with LIVE
:(NOT pre-recorded on tape, but LIVE) video. Normally, I would forsee
:the following setup. 

[diagram cut]

:Thus, the camcorder is used for the external video, the Amiga for the 
:graphics (e.g. titling) and the VCR is used to record the output.

 [more cut]

:local bank into giving me that dam# loan.) So, I had an idea. Well,
:it was just one! Anyway, not having any experience with Genlocks or
:camcorders, I am not sure if it will work. For this idea, you need
:to think of the camcorder as 2 SEPARATE ENTITIES, a camera and a 
:video recorder. I will draw it as such, but attached. My idea is as
:follows:
:
:						/Genlock input
:	|-------|---LIVE video out of camera-| /
:	|Camera |			     |/	|---------------|
:	| Part	|			|----V--|		|
:	|	|			|Genlock|		|
:	|-------|---------|   Genlock	|-------|   Amiga	|
:	|		  |    out------->|	|		|
:	|  Recorder Part  |		  |	|---------------|
:	|  of Camcorder   |<-Recorder in--|
:	|-----------------|

 [other stuff cut]

:Thanks,
:
:Scott Sutherland
:sutherla@qtp.ufl.edu

It would work only IF the camcorder could have the camera half turned
on and the recorder NOT recording the camera's video.
I know of no such camcorder that allows this.  They all automatically
record from the camera WHENEVER the camera half is active.

Camcorders are semi-split into two entities, sort of like a boom box
with radio and tape deck.  When you turn the tuner on, the tape deck 
automatically records from the tuner.  This makes it "idiot proof" for 
the consumer who might otherwise destroy the video tape of a family
outing "because he forgot to switch the recorder's input to the camera's
output."  Same goes for the camcorders.  If the camera turns on, the recorder
records from it, NOT the external input.

Joel