Question
This record is outdated. It has been superceded by record #445 XMT Plots the fall in transmission as a function of relative object height arising from vignetting. It illustrates how a custom error handler prevents reference ray failures terminating execution of a CCL command.
Synopsis
XMT Plots transmission as a function of field (CCL)
Symptoms
Brian Blandford/Ancient and Modern Optics
Solution
See Description
