Contents: Part 1: Requirements, design and use of the colour response, and the gradation and resolution transparencies byG. Hersee.-Part 2: The manufacture of the B.B.C. test transparency No.51 by J.R.T. Royle.
Two new B.B.C. transparencies for testing television camera channels by BBC Engineering. Published by British Broadcasting Corporation in 1958. Publication and catalogue information, links to buy online and reader comments.