Very nice, Jim. I figured you might have something to say on the subject. Over the past few months, I have decided I really need a Packard shutter or something that will allow me to shoot full speed film with some of my bits of orphan glass... something with up to 2 1/2 or 3" opening that would fit a 5" board. (or even 4"... is that possible?)
Typically the size of the packard is really close to double the size hole. ie. a 5" Packard will have a 2 3/4" opening. etc.
He is no fool who gives what he cannot keep..to gain that which he cannot lose. Jim Elliot, 1949