Please, spell out "depth of field" or "depth of focus", as the case may be, instead of the acronym DOF. They are closely related but distinct optical terms. In some of the posts in this thread it is difficult to tell from context which one the acronym was intended to stand for.
Yes, thanks....good chance to make it clear.
Depth of focus is 100.00% of what I am talking about since post#1
NOT Depth of field.
JG: they bleeped out your respectfull obscenity,
but 41.9uM out of a 200mm FL is amazingly tiny.
And seeing the difference between 2000m and 750m with a 7x50 is unrealistic....
It's a bit frightening you don't have a feel for that.
And, a reminder: Depth of focus