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Monday, March 11, 2013

Easterfest 2013 Planning - Video

Well it's that time of year and I had better get organised wrt the video for the palace.

This posting is a bit of a work in progress and so expect it to be updated as I get organsed.

A couple of new developments this year.
We are going to 16:9 wide screen and we are going HD (High Definition).

===================================================
TO DO LIST
Make camera platforms x 2  -> Done
Electrical test & Tag
Tripod 3/8 -> 1/4 adapters -> Commissioned manufacture x2
Get PD150's and And DVR








I have no HD cameras and my vision switcher can only do SD.  So Easterfest are sourcing some HD cameras and a HD vision switcher.  So this year we will have a mix of SD cameras that I will provide and some HD cameras.

We are also distributing the HD signal using SDI.  Serial Digital Interface.

This first picture is a bit of a diagram showing the major input and output devices.  Cameras, projectors and monitors.


This picture shows the inputs to the vision switcher.




Not shown:
  • Mains Power (To avoid earth loop hum, we power everything from the one source)
  • Cable lengths and locations. 
  • Comms 
  • Audio Interconnection and 
  • switching to Easterfest TV Master Control



3/8 to 1/4 Camera thread adapter
Modern cameras seem to have 1/4inch threads.  This is the same thread used on consumer camcorders and all still cameras.  Old pro video cameras used to use a 3/8 thread.  The problem is that all the 'good' tripods I have access to have 3/8 threads.  'good' means a nice fluid damped head.  Apart from thinking straight a good head is essential to give a stable picture.

This plate is screwed to the underside of the camera using the 1/4 bolt.  Then that camera and block combination is attached to the tripod head using the 3/8 screw on the tripod.






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