Museum of the Broadcast Television Camera

Marconi MkIII Television Camera Turret blanking caps

Marconi MkIII Television Camera Turret blanking caps

These fit on the turret in place of the lenses to keep the dust out during transport.

 

This way of carrying them was shown to us by Tyne Tees cameraman David Petrie.

 

David also mentions a Marconi supplied black metal rubber edged bung to stop up the tube housing, presumably to keep dust out when not in service, but they tended not to be used at all.