Quote Originally Posted by Ulophot View Post
Mikey, an engineer such as you might enjoy at least some of Harold Merklinger's in-depth treatment of depth-of-field and discussion of the "hinge-line."
file:///C:/...Local/Temp/FVCADNDM.pdf

I worked at it for a bit and made myself a little chart, but the math is out of my scope, and I found the use of the hinge line too cumbersome in the field. I haven't a mind for geometry. The principle, however, is interesting.
Merklnger's information is very interesting and I am very familiar with it. I old never recommend it to a 1st time user of LF. It may well cause them to get so involved with the technicalities that they end up not making any images.