In article ,
William Sommerwerck wrote:
Registration on cameras. Convergence on monitors?

Yes. Thanks for the correction.


Did you have videcon colour cameras? First UK ones
were Plumbicon.

Yes, because you started so late.

The first RCA cameras used vidicons (I think) -- though they might have
used image orhticons.

Three 3 inch IO were the ones I remember. Being used for tests long before
colour broadcasting started in the UK.

They later had a four-pickup camera that used an image orthicon to
generate a perfectly registered (by definition) luminance signal, plus
three vidicons.

That's a configuration I never saw. The first colour cameras here were all
four tube plumblicons. I was taught the colour response of a videcon
wasn't suitable.

BTW I'm not surprised your setup engineers had problems - with a mixture
of IO and videcon. ;-)

--
*Santa's helpers are subordinate clauses*

Dave Plowman London SW
To e-mail, change noise into sound.