Perform the flange focal-length adjustment (back focus) which ensures that the subject is in focus at both the wide-angle position and the telephoto position during zooming. Set the automatic/manual switch to MANU, and set the iris ring to 16.
|Title||:||Television Operations Handbook|
|Author||:||Robert S. Oringel|
|Publisher||:||Butterworth-Heinemann - 1984|