Quote Originally Posted by Claire Senft
Even the location of the diaphragm influences the bokeh effects. A manufacturer makes choices about bokeh during design and manufacturing release. It can end up being a trade off between bokeh and optical correction.
Hmm. And to think I'd thought that for each lens design, fully specified, there was only one place the diaphragm could be placed.

Was there enough computing power in the universe to all the choices you describe before the mid-'60s? I have the impression that nearly all of the work done when designing a lens is focused on reducing aberrations, getting adequate field flatness, and getting the desired coverage. And, of course, making sure that the design can be manufactured economically.

What does manufacturing have to do with any aspect of lens performance? Either the finished product is near enough to spec to pass QC inspection or it isn't.