Most of the engineers I work with have never heard of
Amphenol or Cannon,
let alone "blue range" or "red range" (popular Cannon connectors)
The only place that I have EVER met any people who claimed to be
"engineers" who might "have never heard of Amphenol" would be some
university folk who have never set foot into the real world.
"I'm an automotive engineer; I've never heard of 'Lucas
Electric'"?
On the subject of D-sub connectors I've sometimes
come across some with
metric threaded jackscrews instead of the usual UNF thread, or is it UNC ?
There are many deviations from standards.