Newsgroups: alt.stagecraft,rec.arts.theatre.stagecraft,rec.arts.video,rec.arts.video.production,rec.video,rec.video.production
Subject: Re: Cable to make Video Camera to Video Projector Cable
References: 
"Lindsay Robinson"  writes:

> Hi there,
> I would like to connect a video camera to a video projector for a live feed.
> The distance is around 20m. I am going to need to make up a cable this
> distance. 

No problem for normal video (composite video) signals video cameras
output and normal video projectors take if you use proper 75 ohm
coaxial cable for the connection (for example RG-59 or something
else designed for video).

> Do Most video cameras have RCA output on them? 

Video cameras have typically RCA or BNC connectors as their video
outputs (composite video). Those outputs only vary in the shape
of the connector, the signals are the same. You cna easily interchange
the connector type by using a small adapter to adapt between RCA
and BNC if needed. For heavy video works I recommend to use BNC
connectors, because they tend to be more reliable in use.

> So i can just feed directly to the projector? 

Yes if it has vidoe input (composite video). The same as with connectors
on cameras apply also to the video projector connectors.

> What type of cable can i use for it? 

75 ohm coaxial cable. For example RG-59.

> I was thinking maybe Shielded Audio cable with RCA on each end would work? 

Quite propably works somehow, but you get quite possibly somewhat blurred
image with possible signal refelections (ghosting) in the picture if
you use audio cable. With proper 75 ohm vidoe cable you will not
get this kind of problems.

> Any ideas?

For more (mostly very technical) information take a look at the 
following pages:
http://www.epanorama.net/videoconnector.html
http://www.epanorama.net/wire_av.html

-- 
Tomi Engdahl (http://www.iki.fi/then/)
Take a look at my electronics web links and documents at 
http://www.epanorama.net/